| 摘要 |
To provide a diesel hybrid vehicle system that does not need to additionally include a simulated sound generator and that is capable of achieving reduction in size, weight and cost of a vehicle. Not only during running of a vehicle, but even when a diesel engine is stopped at the time of starting up the vehicle or during braking control of the vehicle and when an output of the diesel engine is reduced during coasting of the vehicle, a propeller fan of a radiator is forcibly driven to generate a wind sound caused by the propeller fan.
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