Method and system for anti-lock braking in automobile by measuring brake torque
AssigneeJapan Electronic Control Systems Co., Ltd.
InventorsMasuo Kashiwabara, Yoshikazu Tanaka, Hideki Sekiguchi
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Abstract
In an anti-lock braking apparatus, by detecting brake torque at a wheel and controlling the braking force of a wheel brake unit, a locked state of the wheel can be quickly detected to thus enable braking control with fast response characteristics. Also, based on direction of a variation of the brake torque on the wheel, the road friction coefficient is predicted to perform feedback control for the braking force and to adjust the brake torque to a target brake torque, whereby the braking performance can be optimized.
Claims16
An anti-lock braking method for an automotive vehicle for controlling a braking force of a wheel brake unit for restricting slippage of a wheel, comprising the steps of:
- brake operation detecting for detecting operation of said wheel brake unit;
- brake torque detecting for detecting a brake torque at said wheel;
- brake torque transmitting for transmitting said brake torque detected in said brake torque detecting step;
- brake torque receiving for receiving said brake torque transmitted in said transmitting step;
- and
- braking force controlling for controlling said braking force of said wheel brake unit depending upon a condition including said brake torque received in said receiving step, while said operation of said wheel brake unit is detected.
An anti-lock braking apparatus for an automotive vehicle for controlling a braking force of a wheel brake unit for restricting slippage of a wheel, comprising:
- brake operation detecting means for detecting operation of said wheel brake unit;
- brake torque detecting means for detecting brake torque at said wheel;
- brake torque transmitter means for transmitting said brake torque detected by the brake torque detecting means;
- brake torque receiver means for receiving said brake torque transmitted from said transmitter;
- and
- braking force controlling means for controlling said braking force of said wheel brake unit depending upon a condition including said brake torque received at said receiver, while said operation of said wheel brake unit is detected.
Dependencies are inferred from the claim text.