Constant-speed travel control method for vehicle and constant-speed travel control device for vehicle

• Main Authors: GUNJI MICHIHARU, ROSSI, SERGIO
• Format: Patent
• Language: Chinese; English
• Published: 22.03.2022
• Subjects: BLASTING; ENGINEERING ELEMENTS AND UNITS; GEARING; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS; HEATING; LIGHTING; MECHANICAL ENGINEERING; THERMAL INSULATION IN GENERAL; WEAPONS

A vehicle constant-speed travel control method performs vehicle speed control by downshifting a gear stage of an automatic transmission having a plurality of gear stages capable of downshifting during constant-speed travel control when acceleration/deceleration of the vehicle is greater than a determination value during the constant-speed travel control, the automatic transmission having a plurality of gear stages capable of downshifting during the constant-speed travel control, and the acceleration/deceleration of the vehicle being greater than the determination value during the constant-speed travel control. The determination value for the gear range in which the difference in the gear ratios between the gear ranges is relatively large is greater than the determination value for the gear range in which the difference in the gear ratios between the gear ranges is relatively small. 一种车辆的恒速行驶控制方法，当在恒速行驶控制中车辆的加减速度大于判定值的情况下使自动变速器的变速挡降挡而进行车速控制，其中，自动变速器具有在恒速行驶控制中能够降挡的多个变速挡间，在多个变速挡间之中，变速挡间的变速比之差相对较大的变速挡间的判定值大于变速挡间的