A power transmission device includes a torque converter device, a first hydraulic pump, a first oil channel, a second oil channel, a third oil channel, a second pressure control valve, and a controller. The torque converter device has a torque converter and a lock-up clutch. The first oil channel supplies hydraulic fluid from the first hydraulic pump to the torque converter. The second oil channel drains hydraulic fluid from the torque converter. The third oil channel communicates with the first oil channel and the second oil channel. The second pressure control valve is disposed in the third oil channel. The controller sets the second pressure control valve to an open state when the lock-up clutch is in an engaged state.
Power transmission device and power transmission method
2024-04-30
Patent
Electronic Resource
English
MOBILE BODY, POWER TRANSMISSION DEVICE, POWER TRANSMISSION SYSTEM, AND POWER TRANSMISSION METHOD
European Patent Office | 2023
|European Patent Office | 2022
|European Patent Office | 2023
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