Traction control system in a vehicle, vehicle including traction control system, and traction control method

摘要

A traction control system in vehicle comprises a detector for detecting a monitored value which changes according to a degree of a drive wheel slip; a condition determiner for determining whether or not the monitored value meets a control start condition and whether or not the monitored value meets a control termination condition; and a controller for executing traction control to reduce a driving power of the drive wheel during a period of time from when the condition determiner determines that the monitored value meets the control start condition until the condition determiner determines that the monitored value meets the control termination condition; the condition determiner being configured to set at least the control start condition variably based on a slip determination factor which changes according to a vehicle state and such that the control start condition changes more greatly according to the vehicle state than the control termination condition.

主权项

1. A traction control system in a vehicle comprising:
a detector for detecting a monitored value which changes according to a degree to which a drive wheel slips; a condition determiner for determining whether or not the monitored value detected by the detector meets a control start condition of traction control and whether or not the monitored value detected by the detector meets a control termination condition of the traction control; and a controller for executing the traction control to reduce a driving power of the drive wheel during a period of time from when the condition determiner determines that the monitored value meets the control start condition until the condition determiner determines that the monitored value meets the control termination condition; wherein the control start condition is a condition in which the monitored value is greater than or equal to a control start threshold, the control termination condition is a condition in which the monitored value is less than a control termination threshold, and the control start threshold and the control termination threshold are independently set; the condition determiner being configured to set at least the control start threshold variably based on a slip determination factor which changes according to a vehicle state and set the control start threshold and the control termination threshold such that the control start threshold changes more greatly according to the vehicle state than the control termination threshold; and the slip determination factor includes a temporal difference value of a driving state of the vehicle or a temporal difference value of a slip ratio.