Vehicle brake control apparatus and brake control method
AssigneeToyota Jidosha Kabushiki Kaisha
InventorSatoshi Udaka
Life of this patent
Estimating the term…
Abstract
An ECU is formed of an ABS control device for controlling operation of a braking device when a slip ratio of wheels FR to RL becomes greater than a threshold, an automatic brake control device that controls operation of the braking device based on information on surroundings of the vehicle, and the threshold changing device that changes the threshold at which the braking device is activated by the ABS control device so that the threshold when the braking deice is being operated by the automatic brake control device is smaller than the threshold when the braking device is not being operated by the automatic brake control device.
Claims5
A vehicle brake control apparatus comprising:
- a first brake control device that operates a braking device based on information on surroundings of the vehicle;
- a second brake control device that operates the braking device when a slip ratio of wheels becomes greater than a threshold;
- and
- a threshold changing device that changes the threshold, at which the braking device is activated by the second brake control device, so that the threshold when the braking device is being operated by the first brake control device is smaller than the threshold when the braking device is not being operated by the first brake control device.
A vehicle brake control method comprising:
- determining an operation state of a braking device based on information on surroundings of the vehicle;
- determining which one of a first braking amount of the braking device and a second braking amount of the braking device is greater than the other, depending on the operation state, wherein the first braking amount is determined based on the information on surroundings of the vehicle, the second braking amount is determined by a braking operation by driver;
- and
- setting, depending on a result of the determining which one of the amounts is greater than the other, a threshold for a slip ratio of wheels at which the braking device is activated.
Dependencies are inferred from the claim text.