Patent ID: 9731619
Date: 2017-08-15
CPC Classifications: B60L,B60W,Y02T,Y10S

Claim:
1. A vehicle comprising: a generator; an auxiliary battery that supplies electric power to a load and is charged by the generator; an engine; a controller that controls charging and discharging of the auxiliary battery and specifies command power to the engine based on an output required in an entirety of the vehicle; a main battery that outputs energy used for traveling of the vehicle and is charged by the generator; and a DC-DC converter that steps down an output voltage of the generator to the auxiliary battery, wherein the engine: operates based on the command power, performs a load operation in which the engine operates while driving the generator when the command power is equal to or larger than a threshold, and performs a self-supported operation in which the engine operates without driving the generator when the command power is smaller than the threshold, and when an upper limit of an allowable charging power of the main battery decreases and the command power is in a state in which the load operation and the self-supported operation are alternately switched, the controller operates a continuous charging to charge the auxiliary battery continuously for a predetermined time with a charging power which increases the command power to be equal to or larger than the threshold.