Patent ID: 8884451
Filing Date: 2014-11-11
Classification: B60L,B60Q,B60W,H02P,Y02T

Abstract:
1. A diesel hybrid vehicle system comprising: a diesel engine; a radiator that cools compressed air or coolant of the diesel engine; a propeller fan that blows air into the radiator; a motor that drives a vehicle; a generator that is driven by the diesel engine; a power storage device that charges and discharges DC power; a converter that converts AC power generated by the generator into DC power to output the DC power; a first inverter that converts DC power discharged by the power storage device or DC power outputted by the converter into AC power to drive the motor; and a second inverter that converts DC power discharged by the power storage device or DC power outputted by the converter into AC power to drive the propeller fan, wherein even when the diesel engine is stopped during running or stopping of a vehicle, the converter operates as an inverter to drive the generator as a motor to generate a first electromagnetic sound and the second inverter causes a motor that drives the propeller fan to generate a second electromagnetic sound, and a rotational speed of the generator and a carrier frequency of the second inverter are controlled such that a frequency of the first electromagnetic sound becomes different from a frequency of the second electromagnetic sound.