Hybrid vehicle

• US 6,540,035 B2
• Filed: 03/09/2000
• Issued: 04/01/2003
• Est. Priority Date: 05/02/1996
• Status: Expired due to Term

• Current Assignee: Toyota Jidosha Kabushiki Kaisha (Toyota Motor Corporation)
• Original Assignee: Toyota Jidosha Kabushiki Kaisha (Toyota Motor Corporation)
• Inventors: Nagano, Shuji, Morisawa, Kunio
• Primary Examiner(s): VANAMAN, FRANK BENNETT
• Application Number:
  US09/522,365
• Publication Number:
  US 20020007974A1
• Time in Patent Office: 1,118 Days
• Field of Search: 180/65.2, 180/65.3, 180/65.4, 180/65.6, 180/165, 180/178, 180/242, 180/243, 701/70, 701/94, 477/2, 477/3
• US Class Current: 180/65.21
• CPC Class Codes: B60K 17/356 having fluid or electric motor, for driving one or more wheels disposition of motor in, or adjacent to, traction wheel B60K7/00
• CPC Class Codes: B60K 6/44 Series-parallel type
• CPC Class Codes: B60K 6/46 Series type
• CPC Class Codes: B60K 6/52 Driving a plurality of drive axles, e.g. four-wheel drive
• CPC Class Codes: B60K 6/547 the transmission being a stepped gearing
• CPC Class Codes: B60L 15/20 for control of the vehicle or its driving motor to achieve a desired performance, e.g. speed, torque, programmed variation of speed
• CPC Class Codes: B60L 2240/14 Acceleration
• CPC Class Codes: B60L 2240/16 longitudinal
• CPC Class Codes: B60L 2240/486 Operating parameters
• CPC Class Codes: B60L 2240/642 Slope of road
• CPC Class Codes: B60L 50/16 with provision for separate direct mechanical propulsion
• CPC Class Codes: B60L 50/61 by batteries charged by engine-driven generators, e.g. series hybrid electric vehicles
• CPC Class Codes: B60T 2270/602 ABS features related thereto
• CPC Class Codes: B60W 10/06 including control of combustion engines
• CPC Class Codes: B60W 10/08 including control of electric propulsion units, e.g. motors or generators
• CPC Class Codes: B60W 10/11 Stepped gearings
• CPC Class Codes: B60W 10/18 including control of braking systems
• CPC Class Codes: B60W 20/00 Control systems specially adapted for hybrid vehicles hybrid vehicle design, B60K6/00; electric vehicles B60L
• CPC Class Codes: B60W 2510/1005 Transmission ratio engaged
• CPC Class Codes: B60W 2520/10 Longitudinal speed
• CPC Class Codes: B60W 2520/105 : Longitudinal acceleration
• CPC Class Codes: B60W 2530/00 : Input parameters relating to vehicle conditions or values, not covered by groups B60W2510/00 or B60W2520/00
• CPC Class Codes: B60W 2552/15 : Road slope, i.e. the inclination of a road segment in the longitudinal direction
• CPC Class Codes: B60W 2552/40 : Coefficient of friction
• CPC Class Codes: B60W 30/18109 : Braking
• CPC Class Codes: B60W 30/18118 : Hill holding
• CPC Class Codes: B60W 30/18127 : Regenerative braking
• CPC Class Codes: Y02T 10/62 : Hybrid vehicles
• CPC Class Codes: Y02T 10/64 : Electric machine technologies in electromobility
• CPC Class Codes: Y02T 10/70 : Energy storage systems for electromobility, e.g. batteries
• CPC Class Codes: Y02T 10/7072 : Electromobility specific charging systems or methods for batteries, ultracapacitors, supercapacitors or double-layer capacitors
• CPC Class Codes: Y02T 10/72 : Electric energy management in electromobility
• CPC Class Codes: Y02T 90/16 : Information or communication technologies improving the operation of electric vehicles
• CPC Class Codes: Y10S 903/903 : having energy storing means, e.g. battery, capacitor
• CPC Class Codes: Y10S 903/916 : with plurality of drive axles
• CPC Class Codes: Y10S 903/919 : Stepped shift
• CPC Class Codes: Y10S 903/947 : Characterized by control of braking, e.g. blending of regeneration, friction braking

Abstract

A hybrid vehicle including: an engine and a motor-generator for outputting drive forces to run a vehicle; and a brake pedal for applying a braking force to the running vehicle. While an engine braking force is being established, it is detected that the brake pedal is depressed. After this depression of the brake pedal, the vehicle speed is detected so that the regenerative braking is effected by the motor generator on the basis of the detected vehicle speed.

Claims

1. A hybrid vehicle which has a plurality of prime movers individually controlled for running a vehicle, and action units to be activated by a driver for running and stopping the vehicle, comprising:

action detecting means for detecting the acting content of the action units executed by the driver as the driver'"'"'s demand;

behavior detecting means for detecting the behavior of the vehicle through at least one of vehicle speed, vehicle acceleration/deceleration and a throttle opening of one of the prime movers;

decide means for deciding whether or not the vehicle behavior detected by said behavior detecting means corresponds to the driver'"'"'s demand through the action units; and

assist control means for controlling one of said prime movers so as to increase or decrease its output, when said decide means decides that the vehicle behavior detected by said behavior detecting means does not correspond to the driver'"'"'s demand through the action units, to achieve a behavior of the vehicle consistent with activating said action units.

2. A hybrid vehicle according to claim 1,

wherein the behavior detecting means includes means for detecting the behavior of the vehicle through vehicle speed.

3. A hybrid vehicle according to claim 1,

wherein the behavior detecting means includes means for detecting the behavior of the vehicle through vehicle acceleration/deceleration.

4. A hybrid vehicle according to claim 1,

wherein the behavior detecting means includes means for detecting the behavior of the vehicle through vehicle speed and vehicle acceleration/deceleration.

5. A hybrid vehicle according to claim 1,

wherein the behavior detecting means includes means for detecting the behavior of the vehicle through vehicle acceleration.

6. A hybrid vehicle accordingto claim 1,

wherein the behavior detecting means includes means for detecting the behavior of the vehicle through vehicle deceleration.

7. A hybrid vehicle according to claim 1,

wherein the behavior detecting means includes means for detecting the behavior of the vehicle through vehicle acceleration and vehicle speed.

8. A hybrid vehicle according to claim 1,

wherein the behavior detecting means includes means for detecting the behavior of the vehicle through vehicle deceleration and vehicle speed.

9. A hybrid vehicle which has a plurality of prime movers individually controlled for running a vehicle, and action units acting for running and stopping the vehicle, comprising:

action detecting means for detecting the content of an action executed by said action units;

behavior detecting means for detecting the behavior of the vehicle;

decide means for deciding whether or not the vehicle behavior detected by said behavior detecting means corresponds to that achieved by the action units; and

assist control means for controlling one of said prime movers so as to increase or decrease its output, when said decide means decides that the vehicle behavior detected by said behavior detecting means does not correspond to that achieved by the action units, to achieve a behavior of the vehicle consistent with activating said action units,

wherein the behavior detecting means includes means for detecting the behavior of the vehicle through a throttle opening of one of the prime movers.

10. A hybrid vehicle which has a plurality of prime movers individually controlled for running a vehicle, and action units acting for running and stopping the vehicle, comprising:

action detecting means for detecting the content of an action executed by said action units;

behavior detecting means for detecting the behavior of the vehicle;

decide means for deciding whether or not the vehicle behavior detected by said behavior detecting means corresponds to that achieved by the action units; and

assist control means for controlling one of said prime movers so as to increase or decrease its output, when said decide means decides that the vehicle behavior detected by said behavior detecting means does not correspond to that achieved by the action units, to achieve a behavior of the vehicle consistent with activating said action units,

wherein the behavior detecting means includes means for detecting the behavior of the vehicle through vehicle speed and a throttle opening of one of the prime movers.

11. A hybrid vehicle which has a plurality of prime movers individually controlled for running a vehicle, and action units acting for running and stopping the vehicle, comprising:

action detecting means for detecting the content of an action executed by said action units;

behavior detecting means for detecting the behavior of the vehicle;

decide means for deciding whether or not the vehicle behavior detected by said behavior detecting means corresponds to that achieved by the action units; and

assist control means for controlling one of said prime movers so as to increase or decrease its output, when said decide means decides that the vehicle behavior detected by said behavior detecting means does not correspond to that achieved by the action units, to achieve a behavior of the vehicle consistent with activating said action units,

wherein the behavior detecting means includes means for detecting the behavior of the vehicle through vehicle acceleration/deceleration and a throttle opening of one of the prime movers.

12. A hybrid vehicle which has a plurality of prime movers individually controlled for running a vehicle, and action units acting for running and stopping the vehicle, comprising:

action detecting means for detecting the content of an action executed by said action units;

behavior detecting means for detecting the behavior of the vehicle;

decide means for deciding whether or not the vehicle behavior detected by said behavior detecting means corresponds to that achieved by the action units; and

assist control means for controlling one of said prime movers so as to increase or decrease its output, when said decide means decides that the vehicle behavior detected by said behavior detecting means does not correspond to that achieved by the action units, to achieve a behavior of the vehicle consistent with activating said action units,

wherein the behavior detecting means includes means for detecting the behavior of the vehicle through vehicle speed, vehicle acceleration/deceleration and a throttle opening of one of the prime movers.

13. A hybrid vehicle which has a plurality of prime movers individually controlled for running a vehicle, and action units acting for running and stopping the vehicle, comprising:

action detecting means for detecting the content of an action executed by said action units;

behavior detecting means for detecting the behavior of the vehicle;

decide means for deciding whether or not the vehicle behavior detected by said behavior detecting means corresponds to that achieved by the action units; and

assist control means for controlling one of said prime movers so as to increase or decrease its output, when said decide means decides that the vehicle behavior detected by said behavior detecting means does not correspond to that achieved by the action units, to achieve a behavior of the vehicle consistent with activating said action units,

wherein the behavior detecting means includes means for detecting the behavior of the vehicle through vehicle acceleration and a throttle opening of one of the prime movers.

14. A hybrid vehicle which has a plurality of prime movers individually controlled for running a vehicle, and action units acting for running and stopping the vehicle, comprising:

action detecting means for detecting the content of an action executed by said action units;

behavior detecting means for detecting the behavior of the vehicle;

decide means for deciding whether or not the vehicle behavior detected by said behavior detecting means corresponds to that achieved by the action units; and

assist control means for controlling one of said prime movers so as to increase or decrease its output, when said decide means decides that the vehicle behavior detected by said behavior detecting means does not correspond to that achieved by the action units, to achieve a behavior of the vehicle consistent with activating said action units,

wherein the behavior detecting means includes means for detecting the behavior of the vehicle through vehicle deceleration and a throttle opening of one of the prime movers.

15. A hybrid vehicle which has a plurality of prime movers individually controlled for running a vehicle, and action units acting for running and stopping the vehicle, comprising:

action detecting means for detecting the content of an action executed by said action units;

behavior detecting means for detecting the behavior of the vehicle;

decide means for deciding whether or not the vehicle behavior detected by said behavior detecting means corresponds to that achieved by the action units; and

assist control means for controlling one of said prime movers so as to increase or decrease its output, when said decide means decides that the vehicle behavior detected by said behavior detecting means does not correspond to that achieved by the action units, to achieve a behavior of the vehicle consistent with activating said action units,

wherein the behavior detecting means includes means for detecting the behavior of the vehicle through vehicle acceleration, vehicle speed and a throttle opening of one of the prime movers.

16. A hybrid vehicle which has a plurality of prime movers individually controlled for running a vehicle, and action units acting for running and stopping the vehicle, comprising:

action detecting means for detecting the content of an action executed by said action units;

behavior detecting means for detecting the behavior of the vehicle;

decide means for deciding whether or not the vehicle behavior detected by said behavior detecting means corresponds to that achieved by the action units; and

assist control means for controlling one of said prime movers so as to increase or decrease its output, when said decide means decides that the vehicle behavior detected by said behavior detecting means does not correspond to that achieved by the action units, to achieve a behavior of the vehicle consistent with activating said action units,

wherein the behavior detecting means includes means for detecting the behavior of the vehicle through vehicle deceleration, vehicle speed and a throttle opening of one of the prime movers.