Patent ID: 7848867

Claim:
A vehicle coasting deceleration control system comprising: a motor/generator arranged in a drive-train of a vehicle, and a controller configured to determine a driver demand for deceleration of the vehicle at a time of coasting accompanied by an accelerator releasing operation, the controller further configured to control the motor/generator to decelerate the vehicle responsive to the driver demand; and a program executable on the coasting deceleration control device for performing: a target coasting deceleration computing process for determining a driver demand regarding a level of deceleration at a time of coasting accompanied by an accelerator releasing operation, wherein the target coasting deceleration computing process calculates a target coasting deceleration, wherein the target coasting deceleration increases as the driver demand regarding a level of performing deceleration is stronger, and the target coasting deceleration computing process comprises: a coasting deceleration correction factor calculating process for calculating a coasting deceleration correction factor based on a parameter indicating driver demand for an amount of deceleration, and a target driving force calculating process for calculating a target driving force at the time of coasting by multiplying the coasting deceleration correction factor by a target driving force at the a time of accelerator release, wherein the driver demand is determined by the time period between a releasing of an accelerator by the driver and an applying of brakes of the vehicle by the driver.