| 摘要 |
A launch control unit selectively engages a revised control strategy, such as a dynamic or sport shift control strategy or mode which may be selected by a driver. The revised shift control strategy is operable to control an internal combustion engine and/or an automatic transmission of a motor vehicle. The launch control unit can be configured to receive a brake signal from a foot brake and a torque demand from a throttle pedal. In use, the launch control unit is operable to engage said revised shift control strategy upon receipt of a torque demand greater than or equal to an upper torque threshold within a predefined time period of receipt of a brake signal less than or equal to a lower brake threshold. The upper torque threshold corresponds to, for example, a maximum throttle input or throttle kickdown position. Engagement of the revised control strategy is inhibited when, for example, the torque demand falls below a lower torque threshold. |
