Control system for vehicle

A control system for a vehicle having a prime mover, an accelerator pedal, and a detector that detects an operating amount of the accelerator pedal, comprising:

• a controller that calculates an output value of the operating amount of the accelerator pedal with respect to an input value of the operating amount of the accelerator pedal transmitted from the detector with reference to a predetermined input-output characteristic including a hysteresis set between the input value and the output value, and that controls the prime mover based on the calculated output value,
• wherein the hysteresis includes
• a deadband in which the output value is not changed with respect to a change in the input value, or changed slightly with respect to a change in the input value but not sensed by a driver, and
• an asymptotic range in which the output value is changed continuously with respect to a change in the input value based on a predetermined function indicated as a curve or a polygonal curve, when the input value is changed further than the deadband,
• the controller is configured to
• store the input-output characteristic, the deadband, and the asymptotic range,
• increase the output value slightly with respect to an increase in the input value, or not to increase the output value with respect to an increase in the input value, when the input value is increased within the deadband,
• reduce the output value slightly with respect to a reduction in the input value, or not to reduce the output value with respect to a reduction in the input value, when the input value is reduced within the deadband,
• increase the output value with respect to an increase in the input value based on the function when the input value is increased further than the deadband, and
• reduce the output value with respect to a reduction in the input value based on the function when the input value is reduced further than the deadband.