Patent ID: 8795111

Claim:
A belt type continuously variable transmission control system equipped with a drive pulley and a driven pulley having an endless belt wound therearound, a line pressure being exerted on a movable pulley half of either one of the drive pulley and the driven pulley and a control pressure made by reducing the line pressure being exerted on a movable pulley half of the other one thereof, thereby changing a transmission ratio, the system comprising: an accelerator pedal return speed sensor for detecting a return speed of an accelerator pedal; a braking state sensor for detecting a braking state of a vehicle; and an electronic control unit for controlling the transmission ratio, comprising: preliminary pressure increase means for preliminarily increasing the line pressure to a preliminary pressure increase value according to the return speed of the accelerator pedal detected by the accelerator pedal return speed sensor; pressure increase when braking means for further increasing the line pressure from the preliminary pressure increase value when, based on a signal from the braking state sensor, it is detected that speed of depression of a brake pedal is a predetermined value or greater while said line pressure is being increased by said preliminary pressure increase means to said preliminary pressure increase value; and pressure reduction means for reducing the line pressure from the preliminary pressure increase value when the braking state sensor does not detect depression of the brake pedal after the accelerator pedal is returned.