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Title:
INDEPENDENT BRAKING AND CONTROLLABILITY CONTROL METHOD, AND SYSTEM FOR VEHICLE WITH REGENERATIVE BRAKING
Document Type and Number:
Japanese Patent JP2010273540
Kind Code:
A
Abstract:

To optimize energy recovery and vehicle controllability.

A control strategy is provided using feedback control algorithms for monitoring and dynamically modifying the front and rear braking torque for maintaining controllability in a vehicle that initially favors regenerative braking. Simple proportional-integral-derivative feedback controllers can be used. The controller 46 can independently monitor the wheel speed, lateral acceleration, yaw rate, and brake position, to selectively activate non-regenerative braking for each individual wheel 42, 64 and regenerative braking in varying proportion, based on at least one actual vehicle controllability value and at least one predetermined target value for controllability. Controllability factors can include predetermined longitudinal slip ratio, comparison of tire slip angle or the yaw rate. For rear-wheel drive configurations, the non-regenerative brakes can be applied to only one front axle 68 wheel on the outside of a turn, and for front-wheel drive configurations, non-regenerative brakes can be applied to only one rear axle wheel on the inside of the turn.


Inventors:
Brown, Todd Allen
Application Number:
JP2010000162012
Publication Date:
December 02, 2010
Filing Date:
July 16, 2010
Export Citation:
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Assignee:
FORD MOTOR CO
International Classes:
B60L7/10; B60T8/17; B60K6/365; B60K6/44; B60L7/18; B60L7/24; B60L50/16; B60R16/02; B60T8/172; B60T8/1755; B60T8/24; B60T8/26; B60T13/58; B60K1/02
Attorney, Agent or Firm:
前田 弘
竹内 宏
嶋田 高久
竹内 祐二
今江 克実
二宮 克也
原田 智雄
井関 勝守



 
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