发明名称 Control device for vehicle and method of controlling vehicle
摘要 A control device for a vehicle includes a relay adapted to switch whether a first battery electrically connected to a motor generator and a second battery electrically connected to an electric load of the vehicle are to be electrically connected or not by turning on/off the relay. The relay is turned off during a power operation of the motor generator to disconnect an electric connection between the first battery and the second battery. The relay is turned on during a regenerative operation of the motor generator to electrically connect the first battery and the second battery. In a case where an on-fixation failure of the relay is detected, the power operation of the motor generator is prohibited.
申请公布号 US9302671(B2) 申请公布日期 2016.04.05
申请号 US201314416218 申请日期 2013.06.11
申请人 NISSAN MOTOR CO., LTD. 发明人 Yamazaki Takehiko
分类号 B60W20/00;B60K6/485;B60K6/543;B60W10/08;B60W10/26;F02N11/04;F02N11/08;B60L11/18;G01R31/327;H02J7/00;B60W30/18;B60L11/02;B60L1/00;B60L3/00;B60L3/04;F02N11/10;G01R31/00;F02D41/22 主分类号 B60W20/00
代理机构 Foley & Lardner LLP 代理人 Foley & Lardner LLP
主权项 1. A control device for a vehicle, comprising: a motor generator mechanically connected to an output shaft of an engine; a first battery electrically connected to the motor generator; a second battery electrically connected to an electric load of the vehicle; first and second relays adapted to respectively switch to cause the first battery and the second battery to be electrically connected or not, by turning the respective relay on or off; and a controller electrically connected to each of the motor generator, the first and second batteries, and the first and second relays, and configured to cause the motor generator to carry out a power operation or a regenerative operation in accordance with an operation state of the vehicle, wherein the controller is configured to: turn off the first and second relays during the power operation of the motor generator so as to disconnect an electric connection between the first battery and the second battery, and turn on one relay of the first and second relays during the regenerative operation of the motor generator so as to electrically connect the first battery and the second battery, wherein the controller is configured to detect an on-fixation failure in which the relay is fixed in an on state on the basis of a state of the second battery when a command to turn off the first relay and the second relay is outputted by the controller, and wherein the controller is configured to prohibit the power operation of the motor generator in a case where the on-fixation failure of any of the first and the second relays is detected.
地址 Yokohama-shi JP