Importance

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Abstract

A control for a vehicle fitted with an internal combustion engine as a power source. At the time of a driver deceleration intention (when travelling downhill), then with an arrangement where the opening control for the throttle valve and the fuel supply control (fuel cut off control or the like) are automatically controlled in order to obtain a predetermined target vehicle acceleration, when the intention of the driver shifts from a deceleration intention to a non deceleration intention, and hence the automatic control reverts to normal control, the fuel supply control is returned to normal control once the throttle valve opening has reached a predetermined opening. In this way, it is possible to avoid the situation where for example, the fuel supply control reverts to normal control with the throttle valve opened more than necessary. Consequently the occurrence of shock or an unintended acceleration due to a mismatch in the throttle opening at the time of reverting to normal control can be suppressed. Hence vehicle drivability can be further improved.

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First Claim