发明名称 |
VEHICLE BRAKE HYDRAULIC CONTROLLER |
摘要 |
One embodiment provides a vehicle brake hydraulic controller including a wheel speed acquiring section; a wheel deceleration calculator; a vehicle velocity calculator; and a locking tendency determination section. The vehicle velocity calculator calculates a vehicle deceleration based on a temporary vehicle deceleration corresponding to an acceleration sensor value and calculates a vehicle velocity based on the calculated vehicle deceleration. The vehicle velocity calculator calculates the temporary vehicle deceleration by offsetting a first correction amount to a deceleration side in relation to the acceleration sensor value. When a brake pedal operation amount by a driver is equal to or smaller than a first threshold and that an absolute value of the wheel deceleration is equal to or larger than an absolute value of a second threshold are met, the first correction amount is set to be smaller than when the conditions are not met. |
申请公布号 |
US2014379236(A1) |
申请公布日期 |
2014.12.25 |
申请号 |
US201414306735 |
申请日期 |
2014.06.17 |
申请人 |
NISSIN KOGYO CO., LTD. |
发明人 |
KATO Nobuyoshi;HIROSE Tomonori;SEKIYA Tomoaki |
分类号 |
B60T8/1769;B60T8/1761;B60T8/1763 |
主分类号 |
B60T8/1769 |
代理机构 |
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代理人 |
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主权项 |
1. A vehicle brake hydraulic controller which is mounted in a four-wheel drive vehicle, comprising:
a wheel speed acquiring section configured to acquire a wheel speed from a wheel speed sensor; a wheel deceleration calculator configured to calculate a wheel deceleration based on the wheel speed; a vehicle velocity calculator configured to calculate a vehicle deceleration based on a temporary vehicle deceleration which is calculated by using an acceleration sensor value which is outputted from a longitudinal acceleration sensor which detects a longitudinal acceleration to thereby calculate a vehicle velocity based on the vehicle deceleration; and a locking tendency determination section configured to determine from the vehicle velocity and the wheel speed whether or not there exists a locking tendency in a wheel, wherein the vehicle velocity calculator calculates the temporary vehicle deceleration by offsetting a first correction amount to a deceleration side in relation to the acceleration sensor value, and wherein, when conditions that a brake pedal operation amount by a driver is equal to or smaller than a first threshold and that an absolute value of the wheel deceleration is equal to or larger than an absolute value of a second threshold are met, the first correction amount is set to be smaller than when the conditions are not met. |
地址 |
Ueda-city JP |