| 摘要 |
PROBLEM TO BE SOLVED: To decrease influence of viscosity of a working liquid on a hydraulic brake including a hydraulic control valve device. SOLUTION: A linear valve device is controlled so that actual hydraulic pressure of a wheel cylinder approaches target hydraulic pressure on a hydraulic brake including the linear valve device. A range between a pressure intensifying side threshold value and a pressure reduction side threshold value is decreased smaller than the case when viscosity of a working liquid is low in the case when viscosity of the working liquid is high in the case when pressure intensifying control is carried out in the case when hydraulic pressure deflection subtracting actual hydraulic pressure from target hydraulic pressure is higher than a pressure intensifying side threshold value DPLA and pressure reduction control is carried out in the case when it is lower than a pressure reduction side threshold value ADPUR. Consequently, pressure intensifying control or pressure reduction control is carried out in the case when neither pressure intensifying control nor pressure reduction control is carried out in the case when viscosity is low, and it is possible to decrease control delay of wheel cylinder hydraulic pressure by that amount. |
