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公开(公告)号：US06591937B2
公开(公告)日：2003-07-15
申请号：US10007647
申请日：2001-12-05
IPC分类号： B62D504
CPC分类号： B62D6/006 , B60G2400/104 , B60G2400/822 , B60G2800/212 , B60G2800/24 , B60G2800/702 , B60G2800/95 , B60G2800/96 , B60W30/18172 , B60W40/064 , B60W2510/105 , B60W2510/20 , B60W2510/202 , B60W2520/125 , B60W2710/20 , B60W2720/125
摘要： A variable power steering system for a motor vehicle is responsive to an activity signal from a vehicle stability enhancement (VSE) system and a lateral surface coefficient of friction estimator to modify steering assist in an amount dependent on the estimated surface coefficient when the vehicle stability enhancement system is active. The modification is phased in and out with slew limiting in steps also determined by the estimated lateral surface coefficient, with both the maximum modification and the step size varying inversely with lateral surface coefficient. The system preferably determines offset current values for the VSE system and estimated lateral acceleration, as well as for any other vehicle traction limit handling systems such as anti-lock braking (ABS) or traction control (TCS) and chooses the greatest in magnitude as a road surface adaptation offset current for addition to a vehicle speed offset current to provide a total current signal for the modification.
摘要翻译： 用于机动车辆的可变动力转向系统响应来自车辆稳定性增强（VSE）系统的活动信号和侧表面摩擦估计器系数，以在车辆稳定性增强时根据估计的表面系数修改一定量的转向辅助 系统处于活动状态。 该修改由步进的压摆限制进入和退出，也由估计的侧面系数确定，最大修改和步长与侧面系数成反比变化。 系统优选地确定VSE系统的偏移电流值和估计的横向加速度，以及用于任何其它车辆牵引极限处理系统，例如防抱死制动（ABS）或牵引力控制（TCS），并选择最大幅度为 道路表面自适应偏移电流，用于添加车辆速度偏移电流，以提供用于修改的总电流信号。
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2.发明授权TCS stability utilizing a controlled center coupling and controlled brake system 失效使用受控中心联轴器和受控制动系统的TCS稳定性公开(公告)号：US06842685B2
公开(公告)日：2005-01-11
申请号：US10383202
申请日：2003-03-06
CPC分类号： B60T8/1769 , B60K23/04 , B60K23/0808 , B60K28/165 , B60T8/175 , B60T2201/14 , B60T2270/202 , B60W10/14 , B60W10/184 , B60W30/18172 , B60W2510/104 , B60W2520/10 , B60W2520/105 , B60W2520/263 , B60W2710/0666
摘要： A method is directed to controlling a traction control system including a controllable center coupling and a controlled brake system. The method provides for receiving axle speed information, receiving a vehicle speed, determining at least one difference value between the vehicle speed and the axle speed information, and activating the controllable center coupling and the controlled brake system responsive to the difference values. The step of activating the controllable center coupling responsive to at least one of the difference values may include comparing the at least one difference value to at least one associated threshold value, and activating the controllable center coupling based on the comparison. The step of activating the controllable center coupling based on the comparison may include determining an engine torque request value based on the comparison, and engaging an engine with the controllable center coupling based on the engine torque request value.
摘要翻译： 一种方法涉及控制牵引控制系统，包括可控中心联轴器和受控制动系统。 该方法提供接收车轴速度信息，接收车速，确定车速和车轴速度信息之间的至少一个差值，以及响应于差值启动可控中心联轴器和受控制动系统。 响应于差值中的至少一个激活可控中心耦合的步骤可以包括将至少一个差值与至少一个相关联的阈值进行比较，以及基于该比较激活可控中心耦合。 基于比较激活可控中心联轴器的步骤可以包括基于比较来确定发动机扭矩请求值，并且基于发动机转矩请求值将发动机与可控制的中心联轴器接合。
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3.发明申请System and method for determining when to update a surface estimation value indicative of a condition of a roadway surface 有权用于确定何时更新指示道路表面的状况的表面估计值的系统和方法公开(公告)号：US20080021626A1
公开(公告)日：2008-01-24
申请号：US11488354
申请日：2006-07-18
申请人： Kevin A. O'Dea , Aleksander B. Hac , Todd A. Belvo
发明人： Kevin A. O'Dea , Aleksander B. Hac , Todd A. Belvo
IPC分类号： G06F17/00
CPC分类号： B60W40/06 , B60T8/172 , B60T2210/12 , B60W2050/0031
摘要： A system and a method for determining when to update a surface estimation value indicative of a condition of a roadway surface are provided. The method includes determining a front axle cornering force error value based on a predicted front axle cornering force value and a first front axle cornering force value. The method further includes determining a threshold yaw rate error value based on the front axle cornering force error value. The method further includes indicating that the surface estimation value is to be updated when a yaw rate error value is greater than the threshold yaw rate error value.
摘要翻译： 提供一种用于确定何时更新指示道路表面的状况的表面估计值的系统和方法。 该方法包括基于预测的前桥转弯力值和第一前桥转弯力值来确定前桥转弯力误差值。 该方法还包括基于前桥转弯力误差值来确定阈值横摆角速度误差值。 该方法还包括指示当偏航率误差值大于阈值横摆率误差值时表面估计值将被更新。
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4.发明授权System and method for determining when to update a surface estimation value indicative of a condition of a roadway surface 有权用于确定何时更新指示道路表面的状况的表面估计值的系统和方法公开(公告)号：US07499786B2
公开(公告)日：2009-03-03
申请号：US11488354
申请日：2006-07-18
申请人： Kevin A. O'Dea , Aleksander B. Hac , Todd A. Belvo
发明人： Kevin A. O'Dea , Aleksander B. Hac , Todd A. Belvo
CPC分类号： B60W40/06 , B60T8/172 , B60T2210/12 , B60W2050/0031
摘要： A system and a method for determining when to update a surface estimation value indicative of a condition of a roadway surface are provided. The method includes determining a front axle cornering force error value based on a predicted front axle cornering force value and a first front axle cornering force value. The method further includes determining a threshold yaw rate error value based on the front axle cornering force error value. The method further includes indicating that the surface estimation value is to be updated when a yaw rate error value is greater than the threshold yaw rate error value.
摘要翻译： 提供一种用于确定何时更新指示道路表面的状况的表面估计值的系统和方法。 该方法包括基于预测的前桥转弯力值和第一前桥转弯力值来确定前桥转弯力误差值。 该方法还包括基于前桥转弯力误差值来确定阈值横摆角速度误差值。 该方法还包括指示当偏航率误差值大于阈值横摆率误差值时表面估计值将被更新。
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公开(公告)号：US06895323B2
公开(公告)日：2005-05-17
申请号：US10370001
申请日：2003-02-20
申请人： Todd A. Belvo , Eric E. Krueger , Kevin A. O'Dea
发明人： Todd A. Belvo , Eric E. Krueger , Kevin A. O'Dea
IPC分类号： B60T8/1755 , B60T8/1769 , G06F7/00 , G06F17/00
CPC分类号： B60T8/1755 , B60T8/1769 , B60T2201/14
摘要： A method is directed to controlling a differential within an active antilock brake system. The method provides for receiving a secondary axle wheel speed, receiving a vehicle speed, determining a difference value between the vehicle speed and the secondary axle wheel speed, and activating the differential responsive to the difference value. The step of activating the differential responsive to the difference value may include steps for comparing the difference value to a threshold value and activating the differential based on the comparison. The step of activating the differential based on the comparison may include steps for determining a differential request value based on the comparison, activating the differential responsive to the differential request value when the differential request value is less than a maximum differential request value, and activating the differential responsive to the maximum differential request value when the differential request value exceeds the maximum differential request value.
摘要翻译： 一种方法涉及控制主动防抱死制动系统内的差速器。 该方法提供接收次级车轮速度，接收车速，确定车速和次车轮速度之间的差值，并且响应于差值激活差速器。 响应于差值激活差分的步骤可以包括用于将差值与阈值进行比较的步骤，并且基于比较来激活差分。 基于比较来激活差分的步骤可以包括基于比较确定差分请求值的步骤，当差分请求值小于最大差分请求值时响应于差分请求值激活差分，并激活 当差分请求值超过最大差分请求值时响应于最大差分请求值的差分。
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6.发明授权公开(公告)号：US06466857B1
公开(公告)日：2002-10-15
申请号：US10007648
申请日：2001-12-05
申请人： Todd A. Belvo
发明人： Todd A. Belvo
IPC分类号： G06F1700
CPC分类号： B60T8/1755 , B60T8/175
摘要： A traction control for a motor vehicle derives a target delta velocity as the sum of a longitudinal velocity of the vehicle and a target delta velocity derived from one or more of a longitudinal acceleration, a lateral acceleration and a turn curvature. The vehicle has a vehicle stability enhancement system of the type becoming active when a vehicle yaw rate error is sensed for providing braking control of individual wheels of the motor vehicle to reduce the vehicle yaw rate error below a predetermined value. In response to activity of the vehicle stability enhancement system in reducing a vehicle yaw rate error, the target delta velocity, and thus the target velocity, is bounding between a maximum target velocity value and a minimum target velocity value, at least one of which is derived from an estimated coefficient of friction between the vehicle drive wheels and the drive surface. The choice of which of the upper and lower bounds is to be so limited depends on whether the drive wheels are front wheels or rear wheels and whether the vehicle is in understeer or oversteer.
摘要翻译： 用于机动车辆的牵引力控制将目标增量速度导出为从纵向加速度，横向加速度和转弯曲率中的一个或多个导出的车辆纵向速度和目标增量速度之和。 车辆具有在检测到车辆横摆角速度误差以提供机动车辆的各个车轮的制动控制以将车辆横摆率误差降低到预定值以下时变为活动的车辆稳定性增强系统。 响应于车辆稳定性增强系统在减少车辆横摆角速度误差中的活动，目标增量速度以及因此目标速度在最大目标速度值和最小目标速度值之间限制，其中至少一个是 来自车辆驱动轮和驱动表面之间的估计摩擦系数。 上限和下限哪一个的限制取决于驱动轮是前轮还是后轮，以及车辆是否转向不足或过度转向。
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