Patent ID: 8755979

Claim:
A safety control apparatus for an automatic transmission, the safety control apparatus comprising: a speed range detector configured to detect a current speed range of the automatic transmission; an oil temperature detector configured to detect an oil temperature of the automatic transmission; a vehicle speed detector configured to detect a vehicle speed; a speed-range shifting device configured to perform a forcible upshift from the current speed range if the vehicle speed is not lower than a first vehicle speed and if the oil temperature is not lower than a first oil temperature; a shift inhibiting device configured to inhibit an automatic downshift and a manual downshift by a driver if the speed-range shifting device performs the forcible upshift; and a maximum-speed limiting device configured to limit a maximum vehicle speed to a third vehicle speed if the oil temperature reaches a second oil temperature which is higher than the first oil temperature and if the vehicle speed is not lower than a second vehicle speed which is higher than the first vehicle speed.