| 摘要 |
A clutch engagement control system for a vehicle transmission. The system comprises an automatic transmission gearset and at least one hydraulic clutch coupled to the gearset. A hydraulic pressure controller is coupled to the clutch. A clutch engagement controller is coupled to the pressure controller, and an altitude sensor is coupled to the clutch engagement controller. The clutch engagement controller is configured to receive from the altitude sensor an altitude signal corresponding to the altitude of the vehicle. The clutch engagement controller adjusts a hydraulic pressure request of the pressure controller in accordance with the altitude signal, such that the clutch engages with at least one of a rate and pressure corresponding to the sensed altitude. A method employs the system.
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