speed limit device

Abstract

The present invention relates to a vehicle speed limiting device which improves the smoothness of transition from an unrestricted state in which a required value is selected to a restricted state in which an upper limit value is selected. The vehicle speed limiting device includes: a required value calculation unit, which calculates a required value corresponding to the accelerator opening; an upper limit value calculation unit, which calculates an upper limit value related to the driving force; a selection unit, which selects the smaller one of the required value and the upper limit value. and the control unit, which controls the driving force generating device to generate a driving force corresponding to the value selected by the selection unit, and the upper limit value calculation unit selects the upper limit value by the selection unit in a certain cycle, and in the next cycle based on The upper limit value is calculated from the limit acceleration calculated from the deviation between the limit vehicle speed and the current vehicle speed, and the deviation between the limit acceleration and the current acceleration. The upper limit value is calculated based on the limit acceleration, the current driving force generated by the driving force generating device, and the current acceleration.

Description

technical field [0001] The present invention relates to a vehicle speed limiting device. Background technique [0002] It is known that when the driver's requested driving force (the driver's requested driving force calculated based on the accelerator opening) is greater than the vehicle speed limit target driving force, in order not to cause the actual vehicle speed to exceed the limited vehicle speed, choose between the two. The smaller one, that is, the vehicle speed limit target driving force is used as a throttle opening command to electronically control the opening of the throttle (for example, refer to Patent Document 1). [0003] Patent Document 1: Japanese Patent Laid-Open No. 2010-077960 [0004] In Patent Document 1, the vehicle speed limit acceleration is calculated based on the deviation between the actual vehicle speed and the limited vehicle speed, the vehicle speed limit target driving force is calculated from the vehicle speed limit acceleration, the driver...

AI Technical Summary

Problems solved by technology

In addition, there is a possibility that the target driving force for vehicle speed limitation becomes smaller than an appropriate value depending on the driving situation, and the driving force is limited more than necessary by this, causing the driver to feel uncomfortable.

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