Mazda Motor Corporation

Yuki Ida

Shinya Fujioka

Yuta Otsuka

Junya Kono

Masahiro Doi

Hirotaka Sugie

Haruki Yamane

Atsushi Yoshimoto

A battery charging control device for a vehicle is provided, which includes a motor, a high-voltage battery, a low-voltage battery, a charging connecting device, an auxiliary charging device, a temporary storage device, a storage device, a write processing device which performs write processing for writing and storing in the storage device information stored in the temporary storage device, and a control device which includes a determination module and a charging control module. The control module suspends the auxiliary charging device after causing the write processing device to perform the write processing, when an auxiliary charging ending condition is satisfied without an external charging starting condition being satisfied, and issues an external charging start command to a charger after suspending the auxiliary charging device and inhibits the write processing by the write processing device, when the auxiliary charging ending condition is satisfied by the external charging starting condition being satisfied.

Battery charging control device for vehicle

To provide a contactor failure determination apparatus capable of appropriately determining failure of a contactor provided in a vehicle, a voltage sensor capable of detecting rising or dropping of a voltage of a second circuit including an external charger is provided. When an external charging request is made, a first control for closing each external charging contactor is executed, a second control for closing a pre-charge contactor is executed after execution of the first control, a third control for closing a second main contactor is executed after execution of the second control, and response to the voltage sensor detecting that the voltage of the second circuit has not risen after execution of the third control, it is determined that at least one of the external charging contactors has failed in an open state.

Contactor failure determination apparatus for vehicle

To provide a battery heater failure diagnostic device for a vehicle capable of diagnosing failure of a battery heater with a high degree of accuracy, a battery output sensor capable of detecting a battery output value that is a current value or a voltage value of a battery is provided. When a specified failure diagnosis condition is satisfied, a first control for stopping actuation of a battery heater and at least one non-heater device and a second control for actuating the battery heater while maintaining a stop of the actuation of the at least one non-heater device after execution of the first control are executed. The failure of the battery heater is diagnosed based on battery output values detected by the battery output sensor during execution of the first control and during execution of the second control.

Battery heater failure diagnostic device for vehicle

Growing community of inventors

Aki-gun, Japan

Yuki Ida