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1. 发明授权

US6076622A System and method for intelligent cruise control using standard engine control modes 失效
标题翻译：使用标准发动机控制模式进行智能巡航控制的系统和方法
公开(公告)号：US6076622A
公开(公告)日：2000-06-20
申请号：US64278
申请日：1998-04-22
申请人： Shubhayu Chakraborty , William J. Mack
发明人： Shubhayu Chakraborty , William J. Mack
IPC分类号： B60K31/00 , B60W50/00 , F02D45/00 , F16H61/70 , G01S13/93
CPC分类号： B60W30/16 , B60K31/0008 , B60W2050/0045 , B60W2710/0644 , B60W2750/308 , B60Y2200/14 , F16H61/70 , F16H61/702 , G01S2013/9321
摘要： A method for implementing an intelligent cruise control using standard engine control modes includes determining the distance and closing rate relative to a forward object or vehicle and using this information to implement a distance control mode and a speed control mode. The distance control mode maintains a selectable headway range relative to a forward object or vehicle and may include accelerating the vehicle or decelerating the vehicle by defueling, engaging an engine brake, or downshifting the transmission when engine speed permits. The speed control mode maintains a selectable cruising speed if no target vehicle is detected. This cruising speed set point also functions as an upper limit while in the distance control mode. The system and method effect the intelligent cruise control functions utilizing control logic external to the electronic engine control module utilizing the engine speed control mode or engine speed and torque limiting control mode of SAE J1922 or SAE J1939 standards. Alternatively, a cruise control limit speed may be broadcast via SAE J1587 to reduce the vehicle speed upon approaching a forward vehicle so as to reduce the need for driver intervention. The invention may periodically switch between engine control modes to avoid any control mode timeout imposed by some engine manufacturers.
摘要翻译：使用标准发动机控制模式实现智能巡航控制的方法包括确定相对于前进物体或车辆的距离和关闭速度，并且使用该信息来实现距离控制模式和速度控制模式。距离控制模式相对于前进对象或车辆保持可选择的前进范围，并且可以包括通过在发动机转速允许时排油，接合发动机制动器或降档来减速车辆或使车辆减速。如果没有检测到目标车辆，速度控制模式保持可选择的巡航速度。在距离控制模式下，该巡航速度设定点也起到上限的作用。该系统和方法利用SAE J1922或SAE J1939标准的发动机转速控制模式或发动机速度和转矩限制控制模式，利用电子发动机控制模块外部的控制逻辑实现智能巡航控制功能。或者，巡航控制极限速度可以通过SAE J1587广播，以在接近前方车辆时降低车速，以减少对驾驶员干预的需要。本发明可以周期性地在发动机控制模式之间切换，以避免一些发动机制造商施加的任何控制模式超时。

2. 发明授权

US5839534A System and method for intelligent cruise control using standard engine control modes 失效
标题翻译：使用标准发动机控制模式进行智能巡航控制的系统和方法
公开(公告)号：US5839534A
公开(公告)日：1998-11-24
申请号：US396640
申请日：1995-03-01
申请人： Shubhayu Chakraborty , William J. Mack
发明人： Shubhayu Chakraborty , William J. Mack
IPC分类号： B60K31/00 , B60W50/00 , F02D45/00 , F16H61/70 , G01S13/93
CPC分类号： B60W30/16 , B60K31/0008 , B60W2050/0045 , B60W2710/0644 , B60W2750/308 , B60Y2200/14 , F16H61/70 , F16H61/702 , G01S2013/9321
摘要： A system and method for implementing an intelligent cruise control using standard engine control modes includes a distance sensor to determine the distance and closing rate relative to a forward vehicle and use this information to implement a distance control mode and a speed control mode. The distance control mode maintains a selectable headway range relative to a forward vehicle and may include accelerating the vehicle or decelerating the vehicle by defueling, engaging an engine brake, or downshifting the transmission when engine speed permits. The speed control mode maintains a selectable cruising speed if no target vehicle is detected. This cruising speed set point also functions as an upper limit while in the distance control mode. The system and method effect the intelligent cruise control functions utilizing control logic external to the electronic engine control module utilizing the engine speed control mode or engine speed and torque limiting control mode of SAE J1922 or SAE J1939 standards. Alternatively, a cruise control limit speed may be broadcast via SAE J1587 to reduce the vehicle speed upon approaching a forward vehicle so as to reduce the need for driver intervention. The invention may periodically switch between engine control modes to avoid any control mode timeout imposed by some engine manufacturers.
摘要翻译：使用标准发动机控制模式实现智能巡航控制的系统和方法包括：距离传感器，用于确定相对于前进车辆的距离和关闭速度，并使用该信息来实现距离控制模式和速度控制模式。距离控制模式保持相对于前进车辆的可选择的前进范围，并且可以包括通过在发动机转速允许时排放，接合发动机制动器或降档来减速车辆或使车辆减速。如果没有检测到目标车辆，速度控制模式保持可选择的巡航速度。在距离控制模式下，该巡航速度设定点也起到上限的作用。该系统和方法利用SAE J1922或SAE J1939标准的发动机转速控制模式或发动机速度和转矩限制控制模式，利用电子发动机控制模块外部的控制逻辑实现智能巡航控制功能。或者，巡航控制极限速度可以通过SAE J1587广播，以在接近前方车辆时降低车速，以减少对驾驶员干预的需要。本发明可以周期性地在发动机控制模式之间切换，以避免一些发动机制造商施加的任何控制模式超时。

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