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1. 发明授权

US5559702A Antilock brake control method for four-wheel drive vehicle 失效
标题翻译：四轮驱动车辆的防抱死制动控制方法
公开(公告)号：US5559702A
公开(公告)日：1996-09-24
申请号：US377087
申请日：1995-01-26
申请人： Takeshi Kojima , Toshio Yahagi , Kazuaki Fukami , Syouji Suzuki , Kunimichi Hatano
发明人： Takeshi Kojima , Toshio Yahagi , Kazuaki Fukami , Syouji Suzuki , Kunimichi Hatano
IPC分类号： G01P3/56 , B60T8/172 , B60T8/1769 , B60T8/66 , B60T8/32 , B60K17/348
CPC分类号： B60T8/172 , B60T8/1769 , B60T2250/04 , B60T2270/12
摘要： An antilock brake control method for a four-wheel drive vehicle including calculating an estimated vehicle speed on the basis of a wheel speed of a wheel and a value obtained by adding an offset value to an output from a longitudinal acceleration/deceleration sensor for detecting a longitudinal acceleration or deceleration of the vehicle. When it is detected that all of the four wheels are in their spinning state, the addition of the offset value to the output from the longitudinal acceleration/deceleration sensor is stopped, and the estimated vehicle speed is calculated on the basis of the wheel speed and the output from the longitudinal acceleration/deceleration sensor.
摘要翻译：一种用于四轮驱动车辆的防抱死制动控制方法，包括基于车轮的车轮速度计算估计车速，以及通过将偏移值与用于检测车辆的纵向加速/减速传感器的输出相加而获得的值车辆的纵向加速或减速。当检测到四个轮子都处于旋转状态时，停止向纵向加速/减速传感器的输出添加偏移值，并且基于车轮速度来计算估计车速，并且来自纵向加速/减速传感器的输出。

2. 发明授权

US5612880A Process for controlling travel state during braking in vehicle 失效
标题翻译：用于在车辆制动期间控制行驶状态的过程
公开(公告)号：US5612880A
公开(公告)日：1997-03-18
申请号：US377086
申请日：1995-01-26
申请人： Takeshi Kojima , Toshio Yahagi , Kazuaki Fukami , Syouji Suzuki , Kunimichi Hatano
发明人： Takeshi Kojima , Toshio Yahagi , Kazuaki Fukami , Syouji Suzuki , Kunimichi Hatano
IPC分类号： B60K23/08 , B60T8/172 , B60T8/1769 , B60T8/66 , F16D48/12 , B60K17/34 , B60T8/58
CPC分类号： B60T8/172 , B60K23/0808 , B60T8/1769 , B60T2270/12
摘要： A method of controlling the driving state of a vehicle in which an antilock brake control for eliminating a locking tendency of a wheel during braking can be carried out, and a four-wheel drive state and a two-wheel drive state can be switched from one to another. A monitored estimated vehicle speed is calculated on the basis of highest one of wheel speeds of the vehicle wheels and a value is detected by a longitudinal acceleration/deceleration sensor for detecting a longitudinal acceleration or deceleration of a vehicle speed, and a judgement speed is determined at a value lower than the monitored estimated vehicle speed. The vehicle speed is also independently determined based upon the speed of each of the vehicle wheels. The four-wheel drive state is switched to the two-wheel drive state in response to highest one of vehicle speeds independently calculated on the basis of the wheel speeds becoming equal to or less than the judgement speed in the four-wheel drive state. Thus, when the brake depression force is small, the four wheels are prevented from gradually falling into their locked states, with the four-wheel drive state being maintained when the antilock brake control is not carried out.
摘要翻译：一种控制车辆的驾驶状态的方法，其中可以执行用于消除制动期间车轮的锁定倾向的防抱死制动控制，并且可以从一个车轮切换四轮驱动状态和两轮驱动状态到另一个基于车轮的车轮速度的最高值来计算监视的估计车速，并且通过用于检测车速的纵向加速或减速的纵向加速/减速传感器检测到的值，并且确定判断速度其值低于所监视的估计车辆速度。车速也可以基于每个车轮的速度独立地确定。响应于基于车轮速度等于或小于四轮驱动状态的判断速度而独立计算的车速中的最高一个，四轮驱动状态被切换到两轮驱动状态。因此，当制动踏板力小时，防止四个车轮逐渐落入其锁定状态，当不执行防抱死制动控制时，保持四轮驱动状态。

3. 发明授权

US5566094A Process for calculating estimated vehicle speeds 失效
标题翻译：计算车速的过程
公开(公告)号：US5566094A
公开(公告)日：1996-10-15
申请号：US377084
申请日：1995-01-26
申请人： Takeshi Kojima , Toshio Yahagi , Kazuaki Fukami , Syouji Suzuki , Kunimichi Hatano
发明人： Takeshi Kojima , Toshio Yahagi , Kazuaki Fukami , Syouji Suzuki , Kunimichi Hatano
IPC分类号： G01P3/489 , B60T8/172 , B60T8/1769 , B60T8/66 , F02D29/02 , G06F19/00 , G01P3/00
CPC分类号： B60T8/1769 , B60T8/172 , B60T2250/04
摘要： A process for calculating estimated vehicle speeds on the basis of wheel speeds of the vehicle wheels and a value resulting from addition of an offset value corresponding to an output error including a dispersion component and a slope component of an output from a longitudinal acceleration/deceleration sensor to a detection value detected by the longitudinal acceleration/deceleration sensor. In a condition in which it is determined that a vehicle is traveling at a substantially constant speed for a relatively long period of time, a first correction amount is calculated from an average value of variations in wheel speeds and an average value of outputs from the longitudinal acceleration/deceleration sensor during the long period of time. In a condition in which it is determined that the vehicle is traveling at a substantially constant speed for a relatively short period of time, a second correction amount is calculated from the average value of variations in wheel speeds and the average values of outputs from the longitudinal acceleration/deceleration sensor during the short period of time. An amount of correction of the zero point of the longitudinal acceleration/deceleration sensor is determined by the first correction amount, and the correction of the offset value is determined by the second correction amount.
摘要翻译：用于基于车轮的车轮速度来计算估计车速的处理以及添加对应于包括来自纵向加速/减速传感器的输出的色散分量和斜率分量的输出误差的偏移值所产生的值到由纵向加速/减速传感器检测的检测值。在确定车辆以相当长的时间段以基本恒定的速度行驶的状态下，根据车轮速度的变化的平均值和来自纵向的输出的平均值来计算第一校正量加速/减速传感器长时间。在确定车辆在相当短的时间段内以基本上恒定的速度行驶的条件下，根据车轮速度的变化的平均值和来自纵向的输出的平均值来计算第二校正量加速/减速传感器在短时间内。通过第一校正量确定纵向加速/减速传感器的零点的校正量，并且通过第二校正量来确定偏移值的校正。

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