发明名称 |
Drive-force distribution controller and drive-force distribution method for four-wheel-drive vehicle |
摘要 |
A drive-force distribution controller controls a drive-force transmission apparatus (17) of a vehicle in order to control transmission of drive force to rear wheels (20) or front wheels (16) of the vehicle in accordance with a designated drive-force transmission ratio. The drive-force transmission ratio is changed on the basis of vehicle speed, differential rotational speed (speed difference between the front and rear wheels), and throttle opening. Alternatively, the drive-force transmission ratio is changed on the basis of vehicle speed, throttle opening, and throttle open speed. The change speed of current which is supplied to the drive-force transmission apparatus in order to control the drive-force transmission ratio is adjusted in accordance with a command current filter value which is determined on the basis of vehicle speed and a command current filter map of a vehicle-speed responsive type. <IMAGE> |
申请公布号 |
EP1359046(A3) |
申请公布日期 |
2004.02.04 |
申请号 |
EP20030009320 |
申请日期 |
2003.04.24 |
申请人 |
TOYODA KOKI KABUSHIKI KAISHA |
发明人 |
MAEKAWA, AKIO;SHIGETA, RYOHEI |
分类号 |
B60K17/35;B60K23/08;F16D48/12 |
主分类号 |
B60K17/35 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|