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US6641501B2 Expired / Lapsed US ⏱️ 0.0 years remaining

Control apparatus for hybrid vehicle

Assignee: Honda Motor Co Ltd
•
Filing: 2002-03-14
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Granted: 2003-11-04
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Expires: 2022-03-14
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Abstract

Abstract A hybrid vehicle control apparatus is provided, wherein an unpleasant sensation is not imparted to a driver depressing an accelerator pedal at the time of departure. In a hybrid vehicle control apparatus with an engine and a motor as the drive sources, and a battery for storing electrical energy from the engine or the kinetic energy of the vehicle converted by the motor, the vehicle is provided with an automatic transmission. Moreover, there is provided a discharge suppression mode which suppresses discharge from the remaining battery charge detected by a battery ECU, and a charge/discharge permit mode which permits charge/discharge of the battery. At a time of vehicle departure, departure assistance is performed only when a degree of throttle opening showing an acceleration intention of the driver exceeds a determination threshold which is larger than a determination threshold for at the time of the discharge/charge permit mode.

Inventors

  • 👤 Shinichi Kitajima
  • 👤 Shigetaka Kuroda
  • 👤 Atsushi Izumiura
  • 👤 Atsushi Matsubara
  • 👤 Takashi Kiyomiya

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-28 21:38
CPC Classifications
B; B60; B60K; B60K6/00; B60K6/20; B60K6/42; B60K6/48; B60K6/485; B60K6/50; B60K6/54; B60K6/543; B60W; B60W30/00; B60W30/18; B60W30/18009; B60W30/18027; B60W2510/00; B60W2510/24; B60W2510/242; B60W2510/244; B60W2540/00; B60W2540/10; Y; Y02; Y02T; Y02T10/00; Y02T10/10; Y02T10/40; Y02T10/60; Y02T10/62; Y02T10/80; Y02T10/84; Y10; Y10S; Y10S903/00; Y10S903/902; Y10S903/903; Y10S903/904; Y10S903/915; Y10S903/917; Y10S903/918; Y10S903/919

Claims Analysis

Total Claims: 7
Claim 1
Independent Claim 265 words
A control apparatus for a hybrid vehicle with an engine and a motor as the drive sources of the vehicle, and a power storage unit for storing electrical energy from the output of the engine or a part of the kinetic energy of the vehicle which has been converted by the motor, and an automatic transmission, comprising: a charge condition detection section which detects the charge amount of the power storage unit and determines a mode including at least a charge and discharge permit mode which permits charge and discharge of the power storage unit, and a discharge suppression mode which permits charge and suppresses discharge of the power storage unit; and an assistance determination section which determines whether or not to perform driving force assistance for the engine by the motor, wherein the assistance determination section has at least a departure assistance determination section which determines departure assistance that performs driving force assistance by the motor at the time of departure of the vehicle, and an acceleration assistance determination section which determines acceleration assistance that performs driving force assistance by the motor at the time of acceleration of the vehicle, and the departure assistance determination section determines to not permit assistance in the case where the charge condition detection section determines the discharge suppression mode and determines discharge suppression time permit determination which permits assistance in the discharge suppression mode, and in the case where driving force assistance by the motor is permitted by the discharge suppression time permit determination, the departure assistance is performed by the motor even in the discharge suppression mode.
Claim 2
Dependent Claim 265 words
A control apparatus for a hybrid vehicle with an engine and a motor as the drive sources of the vehicle, and a power storage unit for storing electrical energy from the output of the engine or a part of the kinetic energy of the vehicle which has been converted by the motor, and an automatic transmission, comprising: a charge condition detection section which detects the charge amount of the power storage unit and determines a mode including at least a charge and discharge permit mode which permits charge and discharge of the power storage unit, and a discharge suppression mode which permits charge and suppresses discharge of the power storage unit; and an assistance determination section which determines whether or not to perform driving force assistance for the engine by the motor, wherein the assistance determination section has at least a departure assistance determination section which determines departure assistance that performs driving force assistance by the motor at the time of departure of the vehicle, and an acceleration assistance determination section which determines acceleration assistance that performs driving force assistance by the motor at the time of acceleration of the vehicle, and the departure assistance determination section determines to not permit assistance in the case where the charge condition detection section determines the discharge suppression mode and determines discharge suppression time permit determination which permits assistance in the discharge suppression mode, and in the case where driving force assistance by the motor is permitted by the discharge suppression time permit determination, the departure assistance is performed by the motor even in the discharge suppression mode.
Claim 3
Dependent Claim 85 words
A control apparatus for a hybrid vehicle according to claim 1 , wherein the discharge suppression time permit determination by the departure assistance determination section, determines a degree of throttle opening corresponding to an acceleration intention of a driver, and permits the departure assistance in the case where the degree of throttle opening corresponding to the acceleration intention exceeds a predetermined determination threshold value which is greater than a departure assistance determination threshold value for at the time of the charge and discharge permit mode.
Claim 4
Dependent Claim 41 words
A control apparatus for a hybrid vehicle according to claim 1 , wherein an assistance amount for the departure assistance in the discharge suppression mode is determined by a degree of throttle opening or a depression amount of an accelerator pedal.
Claim 5
Dependent Claim 56 words
A control apparatus for a hybrid vehicle according to claim 1 , wherein the assistance determination section determines the departure assistance when, based on at least engine speed and vehicle speed, the engine speed is less than or equal to a predetermined value, and the vehicle speed is less than or equal to a predetermined value.
Claim 6
Dependent Claim 44 words
A control apparatus for a hybrid vehicle according to claim 1 , wherein in the case where the charge condition detection section determines the discharge suppression mode, the acceleration assistance determination section determines that the driving force assistance by the motor is not performed.
Claim 7
Dependent Claim 29 words
A control apparatus for a hybrid vehicle according to claim 1 , wherein an assistance amount for the departure assistance in the discharge suppression mode is a constant value.

References Cited (Backward Citations)

JPH07123509A Cited
US6314346B1 Cited
US6278915B1 Cited
US6379282B1 Cited
US6301529B1 Cited
US6524216B2 Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 2006-11-03 2007-05-05 2007-11-04 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 2010-11-03 2011-05-05 2011-11-04 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 2014-11-03 2015-05-05 2015-11-04 $7700.00 Window Closed / Lapsed

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