vehicle travel control

Abstract

The invention provides a vehicle running control device, which automatically starts tracking control when the driver depresses the accelerator pedal, and cancels the tracking control when the driver depresses the accelerator pedal. When the amount of change in the operation of the accelerator pedal remains within a predetermined range for a predetermined time or more, the normal control is switched to the tracking control, and automatic control is started to maintain the inter-vehicle distance with the preceding vehicle within the predetermined distance. When the amount increases by a predetermined value or more, return from the tracking control to the normal control, that is, the accelerator pedal is caused to generate the operation reaction force according to the command value from the accelerator operation reaction force calculation unit, and when switching from the tracking control to the normal control During normal control, the torque command value of the tracking control unit is switched to the torque command value of the normal control unit at a predetermined gradient.

Description

technical field [0001] The present invention relates to a vehicle travel control device for controlling the inter-vehicle distance between a host vehicle and a vehicle in front. Background technique [0002] As a prior art, for example, a device disclosed in Patent Document 1 is known, that is, a sensor such as a radar is used to measure the inter-vehicle distance to the vehicle in front, and if the inter-vehicle distance reaches a predetermined distance or less, the accelerator pedal that the driver is stepping on is increased. Reaction force, so as to arouse the driver's attention by restoring the accelerator pedal, and when the pedal is restored, the brake will be automatically applied to maintain an appropriate inter-vehicle distance. [0003] In addition, Patent Document 2 discloses a travel control device that, when the slow travel mode setting switch is turned on, slows down at a vehicle speed corresponding to the amount of depression of the accelerator pedal at that ...

AI Technical Summary

Problems solved by technology

[0004] However, in the device described in Patent Document 1, if the driver does not restore the accelerator pedal, the brakes will not work, so each time the driver approaches the vehicle in front, the foot is released from the accelerator pedal, and when accelerating again, because the accelerator pedal is pressed pedal, so it is necessary to frequently step on and off the accelerator pedal, which is very complicated for the driver

[0005] In addition, the device described in Patent Document 2 has a mechanism for automatically accelerating or decelerating to maintain the inter-vehicle distance even when the driver depresses the accelerator pedal in the slow running mode. If you want to temporarily cancel the slow driving mode when you are in a vehicle, you need to turn on the turn signal to convey the meaning of overtaking acceleration to the device or turn off the slow driving mode, so you cannot quickly switch to acceleration

Have again, when returning to slow-speed driving mode again, need to connect slow-speed driving mode switch, this is still very complicated for the driver

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