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Patent US5490572A successfully refreshed from Google Patents.
US5490572A
Expired / Lapsed
US
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Battery temperature control system in electric automobile
Assignee: Honda Motor Co Ltd
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Filing: 1992-12-04
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Granted: 1996-02-13
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Expires: 2012-12-04
Abstract
Abstract A battery temperature control system in an electric automobile which is equipped with an air conditioner for supplying a cool or warm air into a passenger compartment and which travels by using batteries as a power source accommodated in a battery chamber. The system includes a battery temperature sensor for detecting a temperature of the battery, a control unit adapted to drive the air conditioner in an air-cooling mode when the battery temperature detected by the temperature sensor is higher than a predetermined upper limit, and in an air-heating mode when the battery temperature detected by the temperature sensor is lower than a predetermined lower limit. An air intake port is provided in the battery chamber for introducing an air supplied from the air conditioner into the battery chamber. Further, in order to obtain a sufficiently warm air even when the atmospheric temperature is low, an auxiliary heat exchanger 28 which is heated by the combustion heater 29 also is provided.
Inventors
- 👤 Akihiro Tajiri
- 👤 Yoshihiko Hotta
- 👤 Mitsuru Ishikawa
- 👤 Choji Sakuma
- 👤 Nobuyuki Yuri
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 13:58
CPC Classifications
B; B60; B60L; B60L8/00; B60L8/006; B60H; B60H1/00; B60H1/00271; B60H1/00278; B60H1/00357; B60H1/00385; B60H1/00392; B60H1/22; B60K; B60K11/00; B60K11/06; B60K11/08; B60K11/085; B60L1/00; B60L1/003; B60L1/02; B60L50/00; B60L50/50; B60L50/51; B60L50/52; B60L50/60; B60L50/66; B60L53/00; B60L53/10; B60L53/14; B60L58/00; B60L58/10; B60L58/18; B60L58/21; B60L58/24; B60L58/26; B60L58/27; H; H01; H01M; H01M10/00; H01M10/60; H01M10/61; H01M10/613; H01M10/615; H01M10/62; H01M10/625; H01M10/63; H01M10/633; H01M10/65; H01M10/656; H01M10/6561; H01M10/6563; H01M10/66; H01M10/663; B60H2001/003; B60K1/00; B60K2001/003; B60K2001/005; B60L2240/00; B60L2240/10; B60L2240/34; B60L2240/40; B60L2240/54; B60L2240/545; B60L2240/547; B60L2240/549; B60L2240/60; B60L2240/66; B60L2240/662; B60L2240/80; B60L2250/00; B60L2250/10; B60L2270/00; B60L2270/44; B60L2270/46; B60Y; B60Y2400/00; B60Y2400/30; B60Y2400/302; Y; Y02; Y02E; Y02E60/00; Y02E60/10; Y02T; Y02T10/00; Y02T10/60; Y02T10/70; Y02T10/7072; Y02T10/72; Y02T10/80; Y02T10/88; Y02T90/00; Y02T90/10; Y02T90/14; Y02T90/16
Claims Analysis
Total Claims: 40
Claim 1
Independent Claim
140 words
A battery temperature control system in an electric automobile equipped with an air-cooling device for supplying cool air into a passenger compartment, which automobile travels by using an electric motor as the driving force and a battery as an electric power source for the electric motor, comprising; a battery chamber separate and isolated from the passenger compartment with the battery mounted in said battery chamber, a battery temperature sensor for detecting a temperature of said battery, a control unit for driving said air-cooling device when the battery temperature detected by said battery temperature sensor is higher than a predetermined temperature, and a temperature-conditioned air intake port provided in said battery chamber and connected through a duct to said air-cooling device for introducing cool air supplied from said air-cooling device directly into said battery chamber and separately from the passenger compartment.
Claim 2
Dependent Claim
140 words
A battery temperature control system in an electric automobile equipped with an air-cooling device for supplying cool air into a passenger compartment, which automobile travels by using an electric motor as the driving force and a battery as an electric power source for the electric motor, comprising; a battery chamber separate and isolated from the passenger compartment with the battery mounted in said battery chamber, a battery temperature sensor for detecting a temperature of said battery, a control unit for driving said air-cooling device when the battery temperature detected by said battery temperature sensor is higher than a predetermined temperature, and a temperature-conditioned air intake port provided in said battery chamber and connected through a duct to said air-cooling device for introducing cool air supplied from said air-cooling device directly into said battery chamber and separately from the passenger compartment.
Claim 3
Dependent Claim
140 words
A battery temperature control system in an electric automobile equipped with an air-heating device for supplying warm air into a passenger compartment, which automobile travels by using an electric motor as the driving force and a battery as an electric power source for the electric motor, comprising; a battery chamber separate and isolated from the passenger compartment with the battery mounted in said battery chamber, a battery temperature sensor for detecting a temperature of said battery, a control unit for driving said air-heating device when the battery temperature detected by said battery temperature sensor is lower than a predetermined temperature, and a temperature-conditioned air intake port provided in said battery chamber and connected through a duct to said air-heating device for introducing warm air supplied from said air-heating device directly into said battery chamber and separately from the passenger compartment.
Claim 4
Dependent Claim
140 words
A battery temperature control system in an electric automobile equipped with an air-heating device for supplying warm air into a passenger compartment, which automobile travels by using an electric motor as the driving force and a battery as an electric power source for the electric motor, comprising; a battery chamber separate and isolated from the passenger compartment with the battery mounted in said battery chamber, a battery temperature sensor for detecting a temperature of said battery, a control unit for driving said air-heating device when the battery temperature detected by said battery temperature sensor is lower than a predetermined temperature, and a temperature-conditioned air intake port provided in said battery chamber and connected through a duct to said air-heating device for introducing warm air supplied from said air-heating device directly into said battery chamber and separately from the passenger compartment.
Claim 5
Dependent Claim
167 words
A battery temperature control system in an electric automobile equipped with an air conditioner for supplying cool or warm air into a passenger compartment, which automobile travels by using an electric motor as the driving force and a battery as an electric power source for the electric motor, comprising; a battery chamber separate and isolated from the passenger compartment with the battery mounted in said battery chamber, a battery temperature sensor for detecting a temperature of said battery, a control unit for driving said air conditioner in an air-cooling mode when the battery temperature detected by said temperature sensor is higher than a predetermined upper limit, and in an air-heating mode when the battery temperature detected by said temperature sensor is lower than a predetermined lower limit, and a temperature-conditioned air intake port provided in said battery chamber and connected through a duct to said air conditioner for introducing an air supplied from said air conditioner directly into said battery chamber and separately from the passenger compartment.
Claim 6
Dependent Claim
167 words
A battery temperature control system in an electric automobile equipped with an air conditioner for supplying cool or warm air into a passenger compartment, which automobile travels by using an electric motor as the driving force and a battery as an electric power source for the electric motor, comprising; a battery chamber separate and isolated from the passenger compartment with the battery mounted in said battery chamber, a battery temperature sensor for detecting a temperature of said battery, a control unit for driving said air conditioner in an air-cooling mode when the battery temperature detected by said temperature sensor is higher than a predetermined upper limit, and in an air-heating mode when the battery temperature detected by said temperature sensor is lower than a predetermined lower limit, and a temperature-conditioned air intake port provided in said battery chamber and connected through a duct to said air conditioner for introducing an air supplied from said air conditioner directly into said battery chamber and separately from the passenger compartment.
Claim 7
Dependent Claim
89 words
A battery temperature control system in an electric automobile according to claim 3, further including an outside-air intake port provided in said battery chamber for admitting air present outside the vehicle into said battery chamber, said outside-air intake port and said temperature-conditioned air intake port being switchable by a damper, and wherein said control unit is designed to generate a damper switchover signal indicative of a command to switchover said damper for opening said outside-air intake port when said battery temperature is between said upper and lower limit temperatures.
Claim 8
Dependent Claim
185 words
A battery temperature control system in an electric automobile equipped with an air conditioner for supplying cool or warm air into a passenger compartment, which automobile travels by using a battery as a power source accommodated in a battery chamber, comprising; a battery temperature sensor for detecting a temperature of said battery, a control unit for driving said air conditioner in an air-cooling mode when the battery temperature detected by said temperature sensor is higher than a predetermined upper limit, and in an air-heating mode when the battery temperature detected by said temperature sensor is lower than a predetermined lower limit, a temperature-conditioned air intake port provided in said battery chamber for introducing an air supplied from said air conditioner into said battery chamber, a charge judging means for judging whether said battery is being charged, and wherein said control unit is designed to generate a signal indicative of a command to increase an electric charging power of a charger for charging the battery when it is judged by the charge judging means that the battery is being charged and said air conditioner is driven.
Claim 9
Dependent Claim
185 words
A battery temperature control system in an electric automobile equipped with an air conditioner for supplying cool or warm air into a passenger compartment, which automobile travels by using a battery as a power source accommodated in a battery chamber, comprising; a battery temperature sensor for detecting a temperature of said battery, a control unit for driving said air conditioner in an air-cooling mode when the battery temperature detected by said temperature sensor is higher than a predetermined upper limit, and in an air-heating mode when the battery temperature detected by said temperature sensor is lower than a predetermined lower limit, a temperature-conditioned air intake port provided in said battery chamber for introducing an air supplied from said air conditioner into said battery chamber, a charge judging means for judging whether said battery is being charged, and wherein said control unit is designed to generate a signal indicative of a command to increase an electric charging power of a charger for charging the battery when it is judged by the charge judging means that the battery is being charged and said air conditioner is driven.
Claim 10
Dependent Claim
199 words
A battery temperature control system in an electric automobile equipped with an air conditioner for supplying cool or warm air into a passenger compartment, which automobile travels by using an electric motor as the driving force and a battery as an electric power source for the electric motor, comprising; a battery chamber separate and isolated from the passenger compartment with the battery mounted in said battery chamber, a battery temperature sensor for detecting a temperature of said battery, a control unit for driving said air conditioner in an air-cooling mode when the battery temperature detected by said temperature sensor is higher than a predetermined upper limit, and in an air-heating mode when the battery temperature detected by said temperature sensor is lower than a predetermined lower limit, a temperature-conditioned air intake port provided in said battery chamber for introducing an air supplied from said air conditioner directly into said battery chamber and separately from the passenger compartment, and wherein said air conditioner includes a heat pump type air conditioner, and said system further includes an auxiliary heater for heating the air supplied from said air conditioner when the temperature of the outside air is lower than a predetermined temperature.
Claim 11
Dependent Claim
199 words
A battery temperature control system in an electric automobile equipped with an air conditioner for supplying cool or warm air into a passenger compartment, which automobile travels by using an electric motor as the driving force and a battery as an electric power source for the electric motor, comprising; a battery chamber separate and isolated from the passenger compartment with the battery mounted in said battery chamber, a battery temperature sensor for detecting a temperature of said battery, a control unit for driving said air conditioner in an air-cooling mode when the battery temperature detected by said temperature sensor is higher than a predetermined upper limit, and in an air-heating mode when the battery temperature detected by said temperature sensor is lower than a predetermined lower limit, a temperature-conditioned air intake port provided in said battery chamber for introducing an air supplied from said air conditioner directly into said battery chamber and separately from the passenger compartment, and wherein said air conditioner includes a heat pump type air conditioner, and said system further includes an auxiliary heater for heating the air supplied from said air conditioner when the temperature of the outside air is lower than a predetermined temperature.
Claim 12
Dependent Claim
120 words
A battery temperature control system in an electric automobile having an air conditioner for supplying cool or warm air into a passenger compartment and an electric motor as a motive force for the automobile and a battery as an electric power source for the electric motor, comprising; a battery chamber separate and isolated from the passenger compartment with the battery mounted in said battery chamber, means for determining the temperature of said battery, and means for selectively supplying, directly to said battery chamber from said air conditioner and separately from the passenger compartment, cool air when the battery temperature is higher than a predetermined upper limit and warm air when the battery temperature is lower than a predetermined lower limit.
Claim 13
Dependent Claim
120 words
A battery temperature control system in an electric automobile having an air conditioner for supplying cool or warm air into a passenger compartment and an electric motor as a motive force for the automobile and a battery as an electric power source for the electric motor, comprising; a battery chamber separate and isolated from the passenger compartment with the battery mounted in said battery chamber, means for determining the temperature of said battery, and means for selectively supplying, directly to said battery chamber from said air conditioner and separately from the passenger compartment, cool air when the battery temperature is higher than a predetermined upper limit and warm air when the battery temperature is lower than a predetermined lower limit.
Claim 14
Dependent Claim
33 words
A battery temperature control system according to claim 7 further including means for selectively supplying outside air to said battery chamber when said battery temperature is between said upper and lower limit temperatures.
Claim 15
Dependent Claim
128 words
A battery temperature control system in an electric automobile having an air conditioner for supplying cool or warm air into a passenger compartment and a battery in a battery chamber as a power source for the automobile, comprising; means for determining the temperature of said battery, means for selectively supplying to said battery chamber from said air conditioner cool air when the battery temperature is higher than a predetermined upper limit and warm air when the battery temperature is lower than a predetermined lower limit, means for determining when said battery is being charged, and means for causing an increase in an electric charging power of a charger or charging the battery when it is determined that the battery is being charged and said air conditioner is operated.
Claim 16
Dependent Claim
128 words
A battery temperature control system in an electric automobile having an air conditioner for supplying cool or warm air into a passenger compartment and a battery in a battery chamber as a power source for the automobile, comprising; means for determining the temperature of said battery, means for selectively supplying to said battery chamber from said air conditioner cool air when the battery temperature is higher than a predetermined upper limit and warm air when the battery temperature is lower than a predetermined lower limit, means for determining when said battery is being charged, and means for causing an increase in an electric charging power of a charger or charging the battery when it is determined that the battery is being charged and said air conditioner is operated.
Claim 17
Dependent Claim
56 words
A battery temperature control system according to claim 9 wherein said air conditioner includes a heat pump type air conditioner, and said system further includes an auxiliary heater operable by other than the battery for heating the air supplied from said air conditioner when the temperature of the open air is lower than a predetermined temperature.
Claim 18
Dependent Claim
51 words
A battery temperature control system according to claim 9, wherein means are provided for determining when the passenger compartment requires cooling and heating and simultaneously providing either cool air or warm air to both the passenger compartment and the battery chamber when both require cool air or both require warm air.
Claim 19
Dependent Claim
40 words
A battery temperature control system according to claim 9, wherein presetting are provided for presetting a departure time for the automobile and causing operation of said air conditioner before said departure time for selectively cooling and heating the passenger compartment.
Claim 20
Dependent Claim
53 words
A battery temperature control system according to claim 12, wherein said presetting means includes means changing at least one of said predetermined limit temperatures for operating the air conditioner for cooling or heating the battery chamber within a predetermined time period at least one of either before or after said preset departure time.
Claim 21
Dependent Claim
162 words
A battery temperature control system in an electric automobile having an air conditioner for supplying cool or warm air into a passenger compartment and a battery in a battery chamber as a power source for the automobile, comprising; means for determining the temperature of said battery, means for selectively supplying to said battery chamber from said air conditioner cool air when the battery temperature is higher than a predetermined upper limit and warm air when the battery temperature is lower than a predetermined lower limit, and wherein means are provided for detecting a value of at least one of ambient temperature of air outside the automobile, Hydrogen concentration in the battery chamber, carbon monoxide in air outside the automobile, electric current supplied by a charger during charging of the battery, voltage of the battery, electric current being used from the battery and connection of a charger to the battery, and selectively operating said air conditioner in response to each said detected value.
Claim 22
Dependent Claim
162 words
A battery temperature control system in an electric automobile having an air conditioner for supplying cool or warm air into a passenger compartment and a battery in a battery chamber as a power source for the automobile, comprising; means for determining the temperature of said battery, means for selectively supplying to said battery chamber from said air conditioner cool air when the battery temperature is higher than a predetermined upper limit and warm air when the battery temperature is lower than a predetermined lower limit, and wherein means are provided for detecting a value of at least one of ambient temperature of air outside the automobile, Hydrogen concentration in the battery chamber, carbon monoxide in air outside the automobile, electric current supplied by a charger during charging of the battery, voltage of the battery, electric current being used from the battery and connection of a charger to the battery, and selectively operating said air conditioner in response to each said detected value.
Claim 23
Dependent Claim
58 words
A battery temperature control system according to claim 7 or 8, wherein said air conditioner includes a heat pump type air conditioner, and said system further includes an auxiliary heater operable by other than the battery for heating the air supplied from said air conditioner when the temperature of the open air is lower than a predetermined temperature,
Claim 24
Dependent Claim
53 words
A battery temperature control system according to claim 7 or 8, wherein means are provided for determining when the passenger compartment requires cooling and heating and simultaneously providing either cool air or warm air to both the passenger compartment and the battery chamber when both require cool air or both require warm air.
Claim 25
Dependent Claim
42 words
A battery temperature control system according to claim 7 or 8, wherein means are provided for presetting a departure time for the automobile and causing operation of said air conditioner before said departure time for selectively cooling and heating the passenger compartment.
Claim 26
Dependent Claim
167 words
A battery temperature control system in an electric automobile having an air conditioner for supplying cool or warm air into a passenger compartment and a battery in a battery chamber as a power source for the automobile, comprising; means for determining the temperature of said battery, and means for selectively supplying, directly to said battery chamber from said air conditioner, cool air when the battery temperature is higher than a predetermined upper limit and warm air when the battery temperature is lower than a predetermined lower limit, wherein means are provided for presetting a departure time for the automobile and causing operation of said air conditioner before said departure time for selectively cooling and heating the passenger compartment, and wherein said means for presetting a departure time includes means changing at least one of said predetermined limit temperatures for operating the air conditioner for cooling or heating the battery chamber within a predetermined time period at least one of either before or after said preset departure time.
Claim 27
Dependent Claim
167 words
A battery temperature control system in an electric automobile having an air conditioner for supplying cool or warm air into a passenger compartment and a battery in a battery chamber as a power source for the automobile, comprising; means for determining the temperature of said battery, and means for selectively supplying, directly to said battery chamber from said air conditioner, cool air when the battery temperature is higher than a predetermined upper limit and warm air when the battery temperature is lower than a predetermined lower limit, wherein means are provided for presetting a departure time for the automobile and causing operation of said air conditioner before said departure time for selectively cooling and heating the passenger compartment, and wherein said means for presetting a departure time includes means changing at least one of said predetermined limit temperatures for operating the air conditioner for cooling or heating the battery chamber within a predetermined time period at least one of either before or after said preset departure time.
Claim 28
Dependent Claim
184 words
A battery temperature control system in an electric automobile equipped with an air-cooling device for supplying cool air into a passenger compartment which automobile travels by using a battery as a power source accommodated in a battery chamber, comprising; a battery temperature sensor for detecting a temperature of said battery, a control unit for driving said air-cooling device when the battery temperature detected by said battery temperature sensor is higher than a predetermined temperature, and a temperature-conditioned air intake port provided in said battery chamber and connected through a duct to said air-cooling device for introducing cool air supplied from said air-cooling device directly into said battery chamber, wherein means are provided for detecting a value of at least one of ambient temperature of air outside the automobile, Hydrogen concentration in the battery chamber, carbon monoxide in air outside the automobile, electric current supplied by a charger during charging of the battery, voltage of the battery, electric current being used from the battery and connection of a charger to the battery, and selectively operating said air conditioner in response to each said detected value.
Claim 29
Dependent Claim
184 words
A battery temperature control system in an electric automobile equipped with an air-cooling device for supplying cool air into a passenger compartment which automobile travels by using a battery as a power source accommodated in a battery chamber, comprising; a battery temperature sensor for detecting a temperature of said battery, a control unit for driving said air-cooling device when the battery temperature detected by said battery temperature sensor is higher than a predetermined temperature, and a temperature-conditioned air intake port provided in said battery chamber and connected through a duct to said air-cooling device for introducing cool air supplied from said air-cooling device directly into said battery chamber, wherein means are provided for detecting a value of at least one of ambient temperature of air outside the automobile, Hydrogen concentration in the battery chamber, carbon monoxide in air outside the automobile, electric current supplied by a charger during charging of the battery, voltage of the battery, electric current being used from the battery and connection of a charger to the battery, and selectively operating said air conditioner in response to each said detected value.
Claim 30
Dependent Claim
208 words
A battery temperature control system in an electric automobile having an air conditioner for supplying cool or warm air into a passenger compartment, which automobile travels by using an electric motor as the motive force and a battery as an electric power source for the electric motor, comprising; a battery chamber separate and isolated from the passenger compartment with the battery mounted in said battery chamber, a battery temperature sensor for detecting a temperature of said battery, a control unit for driving said air conditioner in an air-cooling mode when the battery temperature detected by said temperature sensor is higher than a predetermined upper limit, and in an air-heating mode when the battery temperature detected by said temperature sensor is lower than a predetermined lower limit, a temperature-conditioned air intake port provided in said battery chamber and connected through a duct to said air conditioner for introducing an air supplied from said air conditioner directly into said battery chamber and separately from the passenger compartment, and wherein means are provided for determining when the passenger compartment requires cooling and heating and simultaneously providing either cool air or warm air to both the passenger compartment and the battery chamber when both require cool air or both require warm air.
Claim 31
Dependent Claim
208 words
A battery temperature control system in an electric automobile having an air conditioner for supplying cool or warm air into a passenger compartment, which automobile travels by using an electric motor as the motive force and a battery as an electric power source for the electric motor, comprising; a battery chamber separate and isolated from the passenger compartment with the battery mounted in said battery chamber, a battery temperature sensor for detecting a temperature of said battery, a control unit for driving said air conditioner in an air-cooling mode when the battery temperature detected by said temperature sensor is higher than a predetermined upper limit, and in an air-heating mode when the battery temperature detected by said temperature sensor is lower than a predetermined lower limit, a temperature-conditioned air intake port provided in said battery chamber and connected through a duct to said air conditioner for introducing an air supplied from said air conditioner directly into said battery chamber and separately from the passenger compartment, and wherein means are provided for determining when the passenger compartment requires cooling and heating and simultaneously providing either cool air or warm air to both the passenger compartment and the battery chamber when both require cool air or both require warm air.
Claim 32
Dependent Claim
198 words
A battery temperature control system in an electric automobile having an air conditioner for supplying cool or warm air into a passenger compartment, which automobile travels by using an electric motor as the motive force and a battery as an electric power source for the electric motor, comprising; a battery chamber separate and isolated from the passenger compartment with the battery mounted in said battery chamber, a battery temperature sensor for detecting a temperature of said battery, a control unit for driving said air conditioner in an air-cooling mode when the battery temperature detected by said temperature sensor is higher than a predetermined upper limit, and in an air-heating mode when the battery temperature detected by said temperature sensor is lower than a predetermined lower limit, a temperature-conditioned air intake port provided in said battery chamber and connected through a duct to the air conditioner for introducing an air supplied from said air conditioner directly into said battery chamber and separately from the passenger compartment, and wherein presetting means are provided for presetting a departure time for the automobile and causing operation of said air conditioner before said departure time for selectively cooling and heating the passenger compartment.
Claim 33
Dependent Claim
198 words
A battery temperature control system in an electric automobile having an air conditioner for supplying cool or warm air into a passenger compartment, which automobile travels by using an electric motor as the motive force and a battery as an electric power source for the electric motor, comprising; a battery chamber separate and isolated from the passenger compartment with the battery mounted in said battery chamber, a battery temperature sensor for detecting a temperature of said battery, a control unit for driving said air conditioner in an air-cooling mode when the battery temperature detected by said temperature sensor is higher than a predetermined upper limit, and in an air-heating mode when the battery temperature detected by said temperature sensor is lower than a predetermined lower limit, a temperature-conditioned air intake port provided in said battery chamber and connected through a duct to the air conditioner for introducing an air supplied from said air conditioner directly into said battery chamber and separately from the passenger compartment, and wherein presetting means are provided for presetting a departure time for the automobile and causing operation of said air conditioner before said departure time for selectively cooling and heating the passenger compartment.
Claim 34
Dependent Claim
201 words
A battery temperature control system in an electric automobile equipped with an air conditioner for supplying cool or warm air into a passenger compartment, which automobile travels by using a battery as a power source accommodated in a battery chamber, comprising; a battery temperature sensor for detecting a temperature of said battery, a control unit for driving said air conditioner in an air-cooling mode when the battery temperature detected by said temperature sensor is higher than a predetermined upper limit, and in an air-heating mode when the battery temperature detected by said temperature sensor is lower than a predetermined lower limit, a temperature-conditioned air intake port provided in said battery chamber for introducing an air supplied from said air conditioner into said battery chamber, wherein presetting means are provided for presetting a departure time for the automobile and causing operation of said air conditioner before said departure time for selectively cooling and heating the passenger compartment, and wherein said presetting means includes means changing at least one of said predetermined limit temperatures for operating the air conditioner for cooling or heating the battery chamber within a predetermined time period at least one of either before or after said preset departure time.
Claim 35
Dependent Claim
201 words
A battery temperature control system in an electric automobile equipped with an air conditioner for supplying cool or warm air into a passenger compartment, which automobile travels by using a battery as a power source accommodated in a battery chamber, comprising; a battery temperature sensor for detecting a temperature of said battery, a control unit for driving said air conditioner in an air-cooling mode when the battery temperature detected by said temperature sensor is higher than a predetermined upper limit, and in an air-heating mode when the battery temperature detected by said temperature sensor is lower than a predetermined lower limit, a temperature-conditioned air intake port provided in said battery chamber for introducing an air supplied from said air conditioner into said battery chamber, wherein presetting means are provided for presetting a departure time for the automobile and causing operation of said air conditioner before said departure time for selectively cooling and heating the passenger compartment, and wherein said presetting means includes means changing at least one of said predetermined limit temperatures for operating the air conditioner for cooling or heating the battery chamber within a predetermined time period at least one of either before or after said preset departure time.
Claim 36
Dependent Claim
184 words
A battery temperature control system in an electric automobile equipped with an air-heating device for supplying warm air into a passenger compartment, which automobile travels by using a battery as a power source accommodated in a battery chamber, comprising; a battery temperature sensor for detecting a temperature of said battery, a control unit for driving said air-heating device when the battery temperature detected by said battery temperature sensor is lower than a predetermined temperature, and a temperature-conditioned air intake port provided in said battery chamber and connected through a duct to said air-heating device for introducing warm air supplied from said air-heating device directly into said battery chamber, wherein means are provided for detecting a value of at least one of ambient temperature of air outside the automobile, Hydrogen concentration in the battery chamber, carbon monoxide in air outside the automobile, electric current supplied by a charger during charging of the battery, voltage of the battery, electric current being used from the battery and connection of a charger to the battery, and selectively operating said air conditioner in response to each said detected value.
Claim 37
Dependent Claim
184 words
A battery temperature control system in an electric automobile equipped with an air-heating device for supplying warm air into a passenger compartment, which automobile travels by using a battery as a power source accommodated in a battery chamber, comprising; a battery temperature sensor for detecting a temperature of said battery, a control unit for driving said air-heating device when the battery temperature detected by said battery temperature sensor is lower than a predetermined temperature, and a temperature-conditioned air intake port provided in said battery chamber and connected through a duct to said air-heating device for introducing warm air supplied from said air-heating device directly into said battery chamber, wherein means are provided for detecting a value of at least one of ambient temperature of air outside the automobile, Hydrogen concentration in the battery chamber, carbon monoxide in air outside the automobile, electric current supplied by a charger during charging of the battery, voltage of the battery, electric current being used from the battery and connection of a charger to the battery, and selectively operating said air conditioner in response to each said detected value.
Claim 38
Dependent Claim
211 words
A battery temperature control system in an electric automobile equipped with an air conditioner for supplying cool or warm air into a passenger compartment which automobile travels by using a battery as a power source accommodated in a battery chamber, comprising; a battery temperature sensor for detecting a temperature of said battery, a control unit for driving said air conditioner in an air-cooling mode when the battery temperature detected by said temperature sensor is higher than a predetermined upper limit, and in an air-heating mode when the battery temperature detected by said temperature sensor is lower than a predetermined lower limit, and a temperature-conditioned air intake port provided in said battery chamber and connected through a duct to said air conditioner for introducing an air supplied from said air conditioner directly into said battery chamber, wherein means are provided for detecting a value of at least one of ambient temperature of air outside the automobile, Hydrogen concentration in the battery chamber, carbon monoxide in air outside the automobile, electric current supplied by a charger during charging of the battery, voltage of the battery, electric current being used from the battery and connection of a charger to the battery, and selectively operating said air conditioner in response to each said detected value.
Claim 39
Dependent Claim
211 words
A battery temperature control system in an electric automobile equipped with an air conditioner for supplying cool or warm air into a passenger compartment which automobile travels by using a battery as a power source accommodated in a battery chamber, comprising; a battery temperature sensor for detecting a temperature of said battery, a control unit for driving said air conditioner in an air-cooling mode when the battery temperature detected by said temperature sensor is higher than a predetermined upper limit, and in an air-heating mode when the battery temperature detected by said temperature sensor is lower than a predetermined lower limit, and a temperature-conditioned air intake port provided in said battery chamber and connected through a duct to said air conditioner for introducing an air supplied from said air conditioner directly into said battery chamber, wherein means are provided for detecting a value of at least one of ambient temperature of air outside the automobile, Hydrogen concentration in the battery chamber, carbon monoxide in air outside the automobile, electric current supplied by a charger during charging of the battery, voltage of the battery, electric current being used from the battery and connection of a charger to the battery, and selectively operating said air conditioner in response to each said detected value.
Claim 40
Dependent Claim
33 words
A battery temperature control system according to claim 18 further including means for selectively supplying outside air to said battery chamber when said battery temperature is between said upper and lower limit temperatures.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1999-02-12 | 1999-08-14 | 2000-02-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2003-02-12 | 2003-08-14 | 2004-02-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2007-02-12 | 2007-08-14 | 2008-02-13 | $7700.00 | Window Closed / Lapsed |