| 摘要 |
A vehicle driving system 1 includes a first and second engines ENG1 and ENG2, a first and second transmissions TM1 and TM2 with first and second one-way clutches OWC1 and OWC2 provided in each output portion respectively, a driving target member 11 connected to output members 121 of the one-way clutches OWC1 and OWC2 in common via clutch mechanisms CL1 and CL2, a main motor/generator MG1 connected to the driving target member 11, and a controller 5. The controller 5 disconnects the clutch mechanisms CL1 and CL2 when a vehicle runs rearward, the transmissions TM1 and TM2, and runs the vehicle rearward by a reverse rotation operation of the motor/generator MG1. The controller otherwise holds the clutch mechanisms CL1 and CL2 connected at the time of a start on an uphill and obtains a hill hold function using a rearward running blocking operation through the transmissions TM1 and TM2.
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