公开(公告)号：US07181326B2

公开(公告)日：2007-02-20

申请号：US11017412

申请日：2004-12-20

Applicant: William C. Lin ,  Youssef A. Ghoneim

Inventor： William C. Lin ,  Youssef A. Ghoneim

IPC: G06F19/00 ,  B62D6/00

CPC classification number: B62D6/003 ,  B60T2230/02 ,  B60T2260/02 ,  B62D5/008

Abstract: An AFS control system that combines and weights yaw rate feedback and side-slip rate feedback to provide increased vehicle stability enhancement control. The AFS system includes a yaw rate sub-system that generates a desired yaw rate signal. The AFS system also includes a side-slip rate sub-system that generates a desired side-slip rate feedback signal. The AFS system further includes a side-slip rate feedback sub-system that generates a side-slip rate feedback signal. The AFS system also includes a yaw rate feedback sub-system that generates a yaw rate feedback signal. The yaw rate feedback signal and the side-slip rate feedback signal are integrated in a control integration sub-system that generates a stability enhancement control signal. The control integration sub-system determines whether the vehicle is in an oversteer or understeer condition, and weights the desired yaw rate feedback signal accordingly based on the vehicle condition.

Abstract translation: AFS控制系统，其组合并加权偏航率反馈和侧滑速率反馈，以提供增强的车辆稳定性增强控制。 AFS系统包括产生所需横摆率信号的偏航率子系统。 AFS系统还包括产生期望的侧滑速率反馈信号的侧滑速率子系统。 AFS系统还包括产生侧滑速率反馈信号的侧滑速率反馈子系统。 AFS系统还包括产生偏航率反馈信号的偏航率反馈子系统。 横摆率反馈信号和侧滑速率反馈信号被集成在产生稳定性增强控制信号的控制集成子系统中。 控制集成子系统确定车辆是否处于过度转向或转向不足状态，并根据车辆状态相应地对所需的横摆速度反馈信号进行加权。

公开(公告)号：US5315519A

公开(公告)日：1994-05-24

申请号：US770269

申请日：1991-10-03

Applicant: Yuen-Kwok Chin ,  Youssef A. Ghoneim

Inventor： Yuen-Kwok Chin ,  Youssef A. Ghoneim

IPC: B60K28/16 ,  B60T8/172 ,  B60T8/175 ,  B60T8/1761 ,  B60T8/48 ,  B60K17/34 ,  B60T8/04

CPC classification number: B60K28/16 ,  B60T8/172 ,  B60T8/175 ,  B60T8/17616 ,  B60T8/48 ,  B60T2270/211

Abstract: The onset of an excessive slip condition in a slip controller is determined so that it is adaptable to the actual drive torque conditions between the driven wheel and the road surface so as to achieve the desired acceleration or braking characteristics for all vehicle driving conditions including while the vehicle is traveling on a curved road surface. At low vehicle speeds, slip control is enabled when the value of a predetermined function of the difference in speeds of the driven and undriven wheels exceeds a threshold that is a function of the vehicle turn radius and at high vehicle speeds when the value of a predetermined function of a wheel slip ratio exceeds the threshold that is a function of the vehicle turn radius. The vehicle speed below which slip control is enabled based on a wheel speed function and above which traction control is enabled based on the wheel slip function increases with an increasing vehicle steering angle.

Abstract translation: 确定滑移控制器中过度滑动状态的开始，使得其适应于从动轮和路面之间的实际驱动转矩条件，以便实现对于所有车辆行驶条件的期望的加速或制动特性，包括 车辆正在弯曲的路面上行驶。 在低车速时，当被驱动和未驱动的车轮的速度差异的预定功能的值超过作为车辆转向半径的函数的阈值并且当车辆转向半径的预定功能的预定功能的值预定 车轮滑移比的函数超过作为车辆转弯半径的函数的阈值。 基于车轮速度功能启用滑差控制的车速，并且基于车轮滑移功能启用牵引力控制的车辆速度随着车辆转向角度的增加而增加。

公开(公告)号：US5009294A

公开(公告)日：1991-04-23

申请号：US467436

申请日：1990-01-19

Applicant: Youssef A. Ghoneim

Inventor： Youssef A. Ghoneim

IPC: B60K28/16 ,  B60T8/175

CPC classification number: B60T8/175 ,  B60K28/16 ,  Y10T477/814

Abstract: A vehicle traction control system includes both driven wheel brake control and engine torque output control for limiting acceleration wheel slip. A boundary condition is identified where engine torque output control alone can be used without braking to regulate the acceleration wheel slip to any desired value. When the traction control system determines that the boundary condition is not exceeded such that engine torque output control alone is capable of preventing an excessive slip condition, only engine torque is controlled to limit wheel slip. However, when the system determines the boundary condition is such that engine torque output control alone will not prevent an excessive slip condition, the brakes of the slipping wheel is then additionally controlled to limit acceleration wheel spin.

Abstract translation: 车辆牵引力控制系统包括驱动轮制动控制和用于限制加速轮滑移的发动机扭矩输出控制。 识别边界条件，其中单独的发动机转矩输出控制可以在不制动的情况下使用，以将加速车滑动调节到任何期望的值。 当牵引力控制系统确定不超过边界条件，使得单独的发动机扭矩输出控制能够防止过度滑动状态时，仅控制发动机扭矩以限制车轮滑动。 然而，当系统确定边界条件使得单独的发动机扭矩输出控制不能防止过度滑动状态时，然后另外控制滑轮的制动器以限制加速轮旋转。

公开(公告)号：US4947332A

公开(公告)日：1990-08-07

申请号：US413039

申请日：1989-09-27

Applicant: Youssef A. Ghoneim

Inventor： Youssef A. Ghoneim

IPC: B60T8/172 ,  B60T8/175

CPC classification number: B60T8/175 ,  B60T8/172 ,  B60T2210/12 ,  B60T2270/208

Abstract: A method for preventing excessive spin to the driven wheels of a vehicle by determining the value of slip where the wheel/road tractive force is maximized for the particular coefficient friction road operating surface. The reaction torque, as translated through the differential, is considered and wheel control is therefore optimized based upon individual wheel acceleration characteristics and cross-differential torque transfer.

Abstract translation: 一种用于通过确定特定系数摩擦道路操作表面的车轮/道路牵引力最大化的滑移值来防止对车辆的从动轮的过度旋转的方法。 考虑通过差速器转换的反作用扭矩，因此根据各个车轮加速特性和交叉差速扭矩传递优化车轮控制。