| 摘要 |
PROBLEM TO BE SOLVED: To avoid the excessive application of the electric braking force to wheels while surely reducing the pressure corresponding to the electric braking force by limiting the electric braking force to be given by an electric braking means in response to the storage quantity of a reservoir. SOLUTION: Real storage quantity QNOW of a four-wheel unified control reservoir is detected, and when more discharge of the working fluid to the four-wheel unified control reservoir is judged impossible on the basis of the storage quantity QNOW and the storage possible quantity QMAX of the four-wheel unified control reservoir, the electric braking force to be given by a motor generator is maintained at the last value so as to prevent the more reduction of the working fluid pressure, and reduction of the pressure corresponding to the electric braking force and be sccrely performed. Since a motor generator MG is operated for regeneration within a range capable of surely performing the regeneration cooperative pressure reduction, excessive application of the braking force is avoided, and the accurate antilock brake control can be performed. |
