Based on the operation of a motor driver (16), a counter (13) makes an addition to and a subtraction from a heat generation counter value which is stored in a storage (14) and represents the temperature variation of a motor (7) and/or the motor driver (16). Once a switching decider (12) decides that a shift has been made from a normal operation mode, in which operating power is supplied, to a sleep mode which has a lower power consumption than that in the normal operation mode, a power source controller (15) refers to the heat generation counter value; and, when the heat generation counter value is equal to or more than a specified threshold value, the power source controller (15) stands by until the counter (13) makes a subtraction from the heat generation counter value to the threshold value and then shifts to the sleep mode.
Seat belt control device, seat belt retractor, seat belt device, seat belt control method, and program
2015-06-30
Patent
Electronic Resource
English
IPC: | B60R Fahrzeuge, Fahrzeugausstattung oder Fahrzeugteile, soweit nicht anderweitig vorgesehen , VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR |