US6359404B1
Expired / Lapsed
US
⏱️ 0.0 years remaining
Control apparatus for hybrid vehicle
Assignee: Honda Motor Co Ltd
•
Filing: 2000-09-06
•
Granted: 2002-03-19
•
Expires: 2020-09-06
Abstract
Abstract A control apparatus including a requestedtorque calculating device which calculates a torque requested for driving the hybrid vehicle; and a torque control device which controls a torque generated by an engine and a torque generated by an electric motor of the hybrid vehicle based on the requested torque calculated by the requested torque calculating device. The torque control device controls the electric motor so as to generate a torque obtained by subtracting a torque to be generated by the engine from the requested torque. Acoording to this control apparatus, if the responsiveness in changing the transmission ratio of the transmission is poor and the torque generated by the engine becomes lower than therequested torque, the electric motor is controlled to generate the deficient (supplementary) torque, and smooth acceleration of the vehicle can be performed.
Inventors
- 👤 Tetsu Sugiyama
- 👤 Kiyoshi Asami
- 👤 Eijiro Shimabukuro
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 18:04
CPC Classifications
B; B60; B60W; B60W20/00; B60W20/10; B60W20/15; B60W20/19; B60K; B60K6/00; B60K6/20; B60K6/42; B60K6/48; B60K6/50; B60K6/54; B60K6/543; B60W10/00; B60W10/04; B60W10/06; B60W10/08; B60K2006/4808; B60L; B60L2240/00; B60L2240/40; B60L2240/42; B60L2240/423; B60L2240/44; B60L2240/445; B60L2240/48; B60L2240/486; B60W2510/00; B60W2510/06; B60W2510/0657; B60W2510/0676; B60W2510/068; B60W2510/24; B60W2510/242; B60W2510/244; B60W2710/00; B60W2710/06; B60W2710/0666; B60W2710/08; B60W2710/083; B60W2710/10; B60W2710/105; Y; Y02; Y02T; Y02T10/00; Y02T10/60; Y02T10/62; Y02T10/64; Y10; Y10S; Y10S903/00; Y10S903/902; Y10S903/903; Y10S903/904; Y10S903/915; Y10S903/917; Y10S903/918
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
118 words
A control apparatus for a hybrid vehicle, comprising: a requested torque calculating device which calculates a torque requested for driving the hybrid vehicle; and a torque control device which controls a torque generated by an engine and a torque generated by an electric motor of the hybrid vehicle based on the requested torque calculated by the requested torque calculating device; wherein the torque control device controls the electric motor so as to generate a torque obtained by subtracting a torque to be generated by the engine from the requested torque, and wherein the torque control device comprises an engine torque restricting device which restricts the torque to be generated by the engine in accordance with a predetermined condition.
Claim 2
Dependent Claim
118 words
A control apparatus for a hybrid vehicle, comprising: a requested torque calculating device which calculates a torque requested for driving the hybrid vehicle; and a torque control device which controls a torque generated by an engine and a torque generated by an electric motor of the hybrid vehicle based on the requested torque calculated by the requested torque calculating device; wherein the torque control device controls the electric motor so as to generate a torque obtained by subtracting a torque to be generated by the engine from the requested torque, and wherein the torque control device comprises an engine torque restricting device which restricts the torque to be generated by the engine in accordance with a predetermined condition.
Claim 3
Dependent Claim
59 words
A control apparatus according to claim 1 , wherein when the requested torque is greater than a maximum torque which the engine can generate the torque control device controls the engine so as to generate the maximum torque and controls the electric motor so as to generate a torque obtained by subtracting the maximum torque from the requested torque.
Claim 4
Dependent Claim
43 words
A control apparatus according to claim 1 , wherein the engine torque restricting device restricts the torque to be generated by the engine when a temperature of a catalyst provided in an exhaust system of the engine is higher than a predetermined temperature.
Claim 5
Dependent Claim
40 words
A control apparatus according to claim 1 , wherein the engine torque restricting device restricts the torque to be generated by the engine when a remaining battery charge of a power storage unit is greater than a predetermined battery charge.
Claim 6
Dependent Claim
34 words
A control apparatus according to claim 1 , wherein the engine torque restricting device stops restricting the torque to be generated by the engine when the requested torque is greater than a predetermined torque.
Claim 7
Dependent Claim
109 words
A control apparatus according to claim 1 , wherein the requested torque calculating device calculates a torque requested for driving driving wheels of the hybrid vehicle, the torque control device comprises a conversion device which converts an engine torque to be generated by the engine to a driving wheel torque to be applied to the driving wheels based on at least a transmission ratio in a transmission which transmits driving force from the engine to the driving wheels, and the torque control device controls the electric motor so as to generate a torque obtained by subtracting the driving wheel torque converted by the conversion device from the requested torque.
Claim 8
Dependent Claim
167 words
A hybrid vehicle comprising: an engine which generates a torque for driving the hybrid vehicle; a transmission which is connected to an output shaft of the engine; driving wheels which are connected to an output shaft of the transmission; an electric motor which is connected to the driving wheels and assists the torque generated by the engine; a requested torque calculating device which calculates a torque requested for driving the hybrid vehicle; and a torque control device which controls a torque generated by an engine and a torque generated by an electric motor of the hybrid vehicle based on the requested torque calculated by the requested torque calculating device; wherein the torque control device controls the electric motor so as to generate a torque obtained by subtracting a torque to be generated by the engine from the requested torque, and wherein the torque control device comprises an engine torque restricting device which restricts the torque to be generated by the engine in accordance with a predetermined condition.
Claim 9
Dependent Claim
167 words
A hybrid vehicle comprising: an engine which generates a torque for driving the hybrid vehicle; a transmission which is connected to an output shaft of the engine; driving wheels which are connected to an output shaft of the transmission; an electric motor which is connected to the driving wheels and assists the torque generated by the engine; a requested torque calculating device which calculates a torque requested for driving the hybrid vehicle; and a torque control device which controls a torque generated by an engine and a torque generated by an electric motor of the hybrid vehicle based on the requested torque calculated by the requested torque calculating device; wherein the torque control device controls the electric motor so as to generate a torque obtained by subtracting a torque to be generated by the engine from the requested torque, and wherein the torque control device comprises an engine torque restricting device which restricts the torque to be generated by the engine in accordance with a predetermined condition.
Claim 10
Dependent Claim
92 words
A control method for a hybrid vehicle, comprising: calculating a torque requested for driving the hybrid vehicle; controlling a torque generated by an engine and a torque generated by an electric motor of the hybrid vehicle based on the requested torque calculated by the requested torque calculating device; and controlling the electric motor so as to generate a torque obtained by subtracting a torque to be generated by the engine from the requested torque, wherein the torque generated by the engine is controlled to be restricted in accordance with a predetermined condition.
Claim 11
Dependent Claim
92 words
A control method for a hybrid vehicle, comprising: calculating a torque requested for driving the hybrid vehicle; controlling a torque generated by an engine and a torque generated by an electric motor of the hybrid vehicle based on the requested torque calculated by the requested torque calculating device; and controlling the electric motor so as to generate a torque obtained by subtracting a torque to be generated by the engine from the requested torque, wherein the torque generated by the engine is controlled to be restricted in accordance with a predetermined condition.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2005-03-18 | 2005-09-17 | 2006-03-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2009-03-18 | 2009-09-17 | 2010-03-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2013-03-18 | 2013-09-17 | 2014-03-19 | $7700.00 | Window Closed / Lapsed |