发明名称 Control apparatus for vehicle
摘要 In a control apparatus for a vehicle, a brake control unit includes: a master cylinder state variable detecting section configured to detect a master cylinder state variable related to a state of a master cylinder; a first regenerative braking force calculating section configured to calculate a first regenerative braking force when the master cylinder state variable detected by the master cylinder state variable detecting section is smaller than a predetermined state variable; a second regenerative braking force calculating section configured to calculate a second regenerative braking force when the master cylinder state variable detected by the master cylinder state variable detecting section is equal to or larger than a predetermined state variable; and a braking control section configured to calculate the liquid pressure braking force on a basis of at least one of the calculated first and second regenerative braking forces.
申请公布号 US8777334(B2) 申请公布日期 2014.07.15
申请号 US201213445417 申请日期 2012.04.12
申请人 Hitachi Automotive Systems, Ltd. 发明人 Fujii Yusuke
分类号 B60T8/60 主分类号 B60T8/60
代理机构 Crowell & Moring LLP 代理人 Crowell & Moring LLP
主权项 1. A control apparatus for a vehicle, comprising: a regenerative brake unit configured to obtain a calculated regenerative braking force for road wheels; a master cylinder actuated in accordance with a brake manipulated variable of a vehicle driver; a liquid pressure brake unit having a pump to supply a brake liquid sucked from the master cylinder to wheel cylinders installed on the respective road wheels under pressure to obtain a calculated liquid pressure braking force, the regenerative brake unit, the master cylinder, and the liquid pressure brake unit being provided to obtain a driver's demanded braking force calculated on a basis of a brake manipulation by the vehicle driver; and a control unit including: a master cylinder state variable detecting section configured to detect a master cylinder state variable related to a state of the master cylinder; a first regenerative braking force calculating section configured to calculate a first regenerative braking force when the master cylinder state variable detected by the master cylinder state variable detecting section is smaller than a predetermined state variable; a second regenerative braking force calculating section configured to calculate a second regenerative braking force which is smaller than the first regenerative braking force when the master cylinder state variable detected by the master cylinder state variable detecting section is equal to or larger than the predetermined state variable; and a braking control section configured to calculate the liquid pressure braking force on a basis of at least one of the calculated first and second regenerative braking forces, wherein the control unit further includes a switch control section configured to increase the liquid pressure braking force while decreasing the calculated second regenerative braking force to realize the driver's demanded braking force,the master cylinder state variable detecting section is a brake manipulated variable detecting section configured to detect a brake manipulated variable, andthe master cylinder is a stroke corresponding master cylinder in which a rise gradient of a master cylinder pressure with respect to the brake manipulated variable is largely generated in a case where the brake manipulated variable is equal to or larger than a first manipulated variable and the rise gradient of the master cylinder pressure with respect to the brake manipulated variable is small in a case where the brake manipulated variable is smaller than the first manipulated variable and the predetermined state variable is a predetermined brake manipulated variable equal to or smaller than the first manipulated variable.
地址 Hitachinaka-shi JP