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    • 36. 发明授权
    • Vehicle cruise control system
    • 车辆巡航控制系统
    • US5758306A
    • 1998-05-26
    • US636442
    • 1996-04-23
    • Hideo Nakamura
    • Hideo Nakamura
    • B60K31/00B60K31/04B60W10/04B60W10/06B60W10/10B60W10/11F02D29/00F02D29/02F16H59/14F16H61/00F16H61/02F16H63/40
    • B60K31/047B60W2530/16F16H2059/142F16H2061/0075F16H61/0213Y10T477/675
    • This invention relates to a vehicle cruise controller which controls engine output and gear shift position such that a detected vehicle speed is identical to a target vehicle speed. A shift to lower gear is performed when a difference between the target vehicle speed and detected vehicle speed reaches a first predetermined value .alpha..sub.1. A mechanism is provided for estimating a travel resistance of the vehicle, the travel resistance when this difference has reached a second predetermined value .alpha..sub.2 which is less than the first predetermined value .alpha..sub.1, being learnt as a maximum drive torque FB of the engine. A shift to higher gear is made when the estimated travel resistance has become less than this learnt maximum drive torque FB after the shift to lower gear. In this way, gear shift hunting during cruise control when the vehicle is climbing or descending slopes, is suppressed.
    • 本发明涉及一种车辆巡航控制器,其控制发动机输出和换档位置,使得检测到的车速与目标车速相同。 当目标车速与检测到的车速之间的差达到第一预定值α1时,执行向低档的换档。提供用于估计车辆的行驶阻力的机构,当该差异达到第二时的行驶阻力 被认为是发动机的最大驱动转矩FB的小于第一预定值α1的预定值α2。 当估计的行驶阻力已经变得小于在转换到低档之后的学习的最大驱动转矩FB时,进入更高档位。 以这种方式,当车辆爬升或下降斜坡时巡航控制期间的换档狩猎被抑制。