| US 7,575,287 B2 | ||
| Vehicle brake system | ||
| Masahiro Matsuura, Chiryu (Japan); Koichi Kokubo, Nagoya (Japan); Shigeru Saito, Kariya (Japan); and Yuji Sengoku, Togo (Japan) | ||
| Assigned to Advics Co., Ltd., Kariya, Aichi (Japan) | ||
| Filed on Aug. 22, 2006, as Appl. No. 11/507,465. | ||
| Claims priority of application No. 2005-248117 (JP), filed on Aug. 29, 2005. | ||
| Prior Publication US 2007/0046099 A1, Mar. 01, 2007 | ||
| Int. Cl. B60T 8/60 (2006.01) | ||
| U.S. Cl. 303—152 [701/70] | 7 Claims |
| 1. A vehicle brake system for controlling a frictional braking force applied to a wheel of a vehicle by means of a friction
brake and a regenerative braking force applied to the wheel of the vehicle by a motor;
said vehicle brake system comprising:
an anti-lock controller for performing anti-lock control in which the friction brake is controlled to prevent the wheel from
locking when the wheel shows a tendency to lock;
calculating means for calculating a predetermined force before start of said anti-lock control, wherein said predetermined
force is always greater than zero and less than the regenerative force being applied to the wheel;
regenerative braking force adjusting means for reducing the regenerative braking force to said predetermined force before
the start of said anti-lock control;
frictional braking force adjusting means for increasing the frictional braking force corresponding to the reduction of the
regenerative braking force by said regenerative braking force adjusting means;
regenerative braking force holding means for holding the regenerative braking force at said predetermined force after the
regenerative braking force has been reduced to said predetermined force by said regenerative braking force adjusting means;
and
a regenerative braking force reducing means for reducing said regenerative braking force from said predetermined force when
said anti-lock control starts.
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