| 发明名称 | Method for control of a gearbox | ||
| 摘要 | A method for control of a gearbox installed in a motor vehicle (1), which method effects a downshift of the gearbox (20) from a first gear (G1), for which the acceleration a of the vehicle (1) is negative, to a second gear (G2), for which the acceleration a is positive or substantially equal to nil. The downshift involves at least one intermediate gear step between the first gear (G1) and second gear (G2), with a maximum engine speed at each intermediate gear step which is as high as, or higher than, a highest engine speed at a preceding intermediate gear step. Also, a system, a motor vehicle, a computer program and a computer program product for performing the method are disclosed. | ||
| 申请公布号 | US9037365(B2) | 申请公布日期 | 2015.05.19 |
| 申请号 | US201013395675 | 申请日期 | 2010.09.14 |
| 申请人 | SCANIA CV AB | 发明人 | Swartling Fredrik;Wågberg Mikael |
| 分类号 | B60W10/06;F16H61/02;B60W30/19;F16H59/48 | 主分类号 | B60W10/06 |
| 代理机构 | Ostrolenk Faber LLP | 代理人 | Ostrolenk Faber LLP |
| 主权项 | 1. A method for control of a gearbox, installed in a motor vehicle, comprising effecting a downshift of the gearbox from a first gear, for which the acceleration a of the vehicle is negative, to a second gear, for which the acceleration a is positive or substantially equal to nil, wherein the downshift involves at least one intermediate gear step between the first gear and the second gear, with a maximum engine speed at each intermediate gear step which is as high as, or higher than, a highest engine speed at a preceding intermediate gear step, whereby the highest engine speed at each intermediate gear step assumes a value which is pi higher than the highest engine speed at a preceding intermediate gear step, pi being a parameter value. | ||
| 地址 | SE | ||