| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a driving power distribution control device capable of improving vehicle running stability by avoiding immediate switching from 4WD control to 2WD control, and maintaining 4WD performance even when a failure of a temperature sensor for measuring an ambient temperature of a switching element is detected while a vehicle is moving. <P>SOLUTION: Even when a failure of a temperature sensor for measuring an ambient temperature of a switching element is detected, a PWM frequency for PWM control of a switching element is lowered and 4WD control is continued if the temperature detected by a temperature sensor for measuring a vehicle interior temperature is below a predetermined value. <P>COPYRIGHT: (C)2012,JPO&INPIT |
