Device and method of fail-safe control for electronically controlled
automatic transmission
    1.
    发明授权
    Device and method of fail-safe control for electronically controlled automatic transmission 失效
    电控自动变速箱故障安全控制装置及方法

    公开(公告)号:US4955258A

    公开(公告)日:1990-09-11

    申请号:US280935

    申请日:1988-12-07

    摘要: In a fail-safe control device for an electronically controlled automatic transmission to be mounted on a vehicle, a sensor for the number of revolution input to a T/M is newly provided for the electronically controlled automatic transmission, and an actual gear ratio of the T/M is calculated in accordance with the number of revolution input to the T/M and the number of revolution output from the T/M or the car speed. If the calculated actual gear ratio is coincided with the formal gear ratio, it is determined that the state is normal, while if they are not coincided with each other, it is determined that the T/M is in a failure state. As a result of this, failure detection of the T/M is performed. Therefore, in a case when the T/M is in a failure state, a driver can take a measure, for exmple, by performing an emergency control. Furthermore, the occurrence of the failure can be displayed by a detected failure displaying device so that the driver can take a measure such as a repair.

    摘要翻译: 在用于安装在车辆上的电子控制自动变速器的故障安全控制装置中,为电子控制的自动变速器新提供了输入到T / M的转数的传感器,并且实际齿轮比 根据输入到T / M的转数和从T / M输出的转数或车速计算T / M。 如果计算出的实际齿轮比与正式齿轮比一致,则判定状态是正常的,而如果它们不一致,则确定T / M处于故障状态。 结果,执行T / M的故障检测。 因此,在T / M处于故障状态的情况下,驾驶员可以采取措施,例如通过进行紧急控制。 此外,可以通过检测到的故障显示装置显示故障的发生,使得驾驶员可以采取诸如维修的措施。

    Fail-safe operation of a vehicle automatic transmission responsive to
failure of engine water temperature sensor
    2.
    发明授权
    Fail-safe operation of a vehicle automatic transmission responsive to failure of engine water temperature sensor 失效
    响应发动机水温传感器的故障,车辆自动变速器故障安全运行

    公开(公告)号:US4949078A

    公开(公告)日:1990-08-14

    申请号:US282275

    申请日:1988-12-09

    CPC分类号: F16H59/78 F16H61/12

    摘要: A fail-safe control device for an electronically controlled automatic transmission to be mounted on a vehicle arranged in such a manner that the number of engine revolution or the number of revolution input to a T/M is detected, the duration of the engine revolving state is counted, and it is determined that a failure of the engine water temperature sensor occurs if the engine water temperature detected by the engine water temperature sensor after a predetermined time elapse counted is lower than a predetermined temperature. As a result of this, a proper fail-safe control against the failure of the engine water temperature sensor can be performed.

    摘要翻译: 一种用于电子控制的自动变速器的故障安全控制装置,其安装在以检测到输入到T / M的发动机转数或转数的方式配置的车辆上,发动机旋转状态的持续时间 并且如果在经过预定时间之后由发动机水温传感器检测到的发动机水温低于预定温度,则确定发动机水温传感器发生故障。 因此,可以进行针对发动机水温传感器的故障的适当的故障安全控制。

    Electronically controlled automatic transmission
    3.
    发明授权
    Electronically controlled automatic transmission 失效
    电控自动变速器

    公开(公告)号:US4870581A

    公开(公告)日:1989-09-26

    申请号:US83394

    申请日:1987-08-10

    摘要: A sensed shift time and a standard value of shift time set for this shift are compared. If the result of the comparison is that the shift time does not fall within an allowable range of standard values, a signal outputted to a linear solenoid is varied in such a manner that the shift time will be held with the range of the standard values. Accordingly, actual shift time while a vehicle is traveling is constantly fed back and controlled so as to attain an optimum shift time. Therefore, even if a change in the shift time is brought about by a change in oil temperature in the transmission or by aging of friction elements or the like, the shift time can be corrected to an optimum value to improve shift sensation as well as the durability of the friction elements.

    摘要翻译: 比较感测到的移位时间和为此移位设定的移动时间的标准值。 如果比较结果是移动时间不在标准值的允许范围内,则输出到线性螺线管的信号以这样的方式变化,即移位时间将保持在标准值的范围内。 因此,车辆行驶时的实际换档时间不断地反馈控制,以达到最佳的换档时间。 因此,即使由于变速器油温的变化或摩擦元件等的老化而导致换档时间的变化,也可以将换档时间修正为最佳值,以改善换挡感觉 摩擦元件的耐久性。

    Method of and apparatus for controlling motor vehicle during speed
change operation
    4.
    发明授权
    Method of and apparatus for controlling motor vehicle during speed change operation 失效
    变速运转时机动车辆控制方法及装置

    公开(公告)号:US4933851A

    公开(公告)日:1990-06-12

    申请号:US207721

    申请日:1988-06-16

    摘要: In engine torque control in a motor vehicle having an engine and a stepping type of transmission, input and output speeds of the transmission are constantly detected by sensors disposed in input and output portions of the transmission, thereby obtaining a gear ratio (measured value) of the transmission. If the ratio of the difference between this gear ratio and a predetermined gear ratio before the gearshift (theoretical value) to the latter gear ratio before the gearshift exceeds a predetermined value, the start of gearshift is decided. If the ratio of the difference between the gear ratio of the transmission (measured value) and a predetermined gear ratio after the gearshift (theoretical value) to the latter gear ratio after the gearshift becomes smaller than a predetermined value, the end of gearshift is decided. A set level by which the torque of the engine should be reduced during the period between the start and end of the gearshift is determined by reading reduction data previously set with respect to the throttle opening and the type of gearshift. The torque output from the engine is reduced on the basis of the reduction data by controlling the ignition timing retardation angle or the fuel injection rate.

    摘要翻译: 在具有发动机和步进式变速器的机动车辆的发动机转矩控制中,通过设置在变速器的输入和输出部分的传感器不断地检测变速器的输入和输出速度,从而获得变速器的传动比(测量值) 传输。 如果变速前的变速比与变速前的预定齿轮比(理论值)与后齿轮比之间的差的比率超过规定值,则判定变速开始。 如果变速器的变速比(测量值)与变速后的预定齿轮比(理论值)与变速后的后齿轮比之间的差的比率变得小于预定值,则确定变速结束 。 在换挡开始和结束之间的期间,发动机扭矩应减小的设定水平是通过读取先前关于节气门开度设定的减速数据和换档类型来确定的。 基于减少数据,通过控制点火正时延迟角度或燃料喷射速度来减小发动机的扭矩输出。

    Electronically controlled automatic transmission
    5.
    发明授权
    Electronically controlled automatic transmission 失效
    电控自动变速器

    公开(公告)号:US4941096A

    公开(公告)日:1990-07-10

    申请号:US130776

    申请日:1987-12-09

    摘要: If a driver wishes to start off an automotive vehicle in second or third gear when the vehicle is at rest on a road surface having a low coefficient of friction, as is the case when a road surface is covered with snow, the driver operates a winter mode selection switch while the transmission is in the speed range in which the vehicle ordinarily travels, i.e. the D range. After the vehicle has started off in the higher gear following use of the switch, the transmission switches over to the ordinary travel mode automatically as vehicle velocity rises. In a case where the engine is turned off and then restarted, the transmission switches over to the ordinary travel mode automatically. This eliminates any inconvenience that might be caused by forgetting to operate the switch prior to the restarting of the engine.

    摘要翻译: 如果驾驶员希望在车辆在摩擦系数低的路面上停泊时从二手或三档的汽车上开始,如路面被雪覆盖的情况那样,驾驶员会在冬季运行 当变速器处于车辆通常行进的速度范围(即D档)时,模式选择开关。 在使用开关后车辆开始高档后,当车速升高时,变速器自动切换到普通行驶模式。 在发动机关闭然后重新启动的情况下,变速器自动切换到普通行驶模式。 这消除了在重新启动发动机之前忘记操作开关所造成的任何不便。

    Electronic control type automatic speed changer
    6.
    发明授权
    Electronic control type automatic speed changer 失效
    电子控制型自动变速器

    公开(公告)号:US5083479A

    公开(公告)日:1992-01-28

    申请号:US633620

    申请日:1990-12-23

    摘要: To prevent wheel spinning in reverse gear on a slippery road surface the electronic control system of the present invention transmits signals representing the states of a reverse range detecting switch and a winter mode switch to a microcomputer, and output signals from the microcomputer are transmitted to an engine control computer which in turn, sends ignition period delay angle signals to the spark timing controller, and the output torque of the engine is thereby reduced. When the output torque of the engine is reduced, the driving power to the wheels is decreased and slippage is reduced in reverse start on a low coefficent of fuction .mu. path.

    摘要翻译: 本发明的电子控制系统为了防止在路面上的倒车齿轮旋转,将表示逆范围检测开关和冬季模式切换状态的信号发送到微型计算机,并将来自微型计算机的输出信号发送到 发动机控制计算机,其又将点火期延迟角度信号发送到火花正时控制器,从而减小发动机的输出转矩。 当发动机的输出扭矩减小时,在低功率的路径下,向车轮的驱动力降低,反向启动时的滑动减小。

    Device and method of fail-safe control for electronically controlled
automatic transmission
    7.
    发明授权
    Device and method of fail-safe control for electronically controlled automatic transmission 失效
    电控自动变速箱故障安全控制装置及方法

    公开(公告)号:US5016174A

    公开(公告)日:1991-05-14

    申请号:US280937

    申请日:1988-12-07

    摘要: A fail-safe control device for an electronically controlled automatic transmission mounted on a vehicle is provided with a sensor for sensing the number of revolutions input to the transmission and a sensor for sensing the number of revolutions output from the transmission or from a car speed sensor. The actual gear ratio of the transmission is calculated in accordance with the number of revolutions input to the transmission and the number of revolutions output from the transmission or from the car speed sensor each obtained from said sensors. The time taken for changing the actual gear ratio at the time of shift initiation to the fixed gear ratio after the shift is measured. A predetermined shift time which has been stored is compared with the thus-measured time for the purpose of detecting a failure of the transmission. As a result of this, a driver can take a measure such as performing an emergency control or the like, and furthermore, the failure can be displayed by a failure alarm device so that the driver can arrange for repair.

    摘要翻译: 安装在车辆上的用于电子控制的自动变速器的故障安全控制装置设置有用于感测输入到变速器的转数的传感器和用于感测从变速器输出的转速或从轿厢速度传感器 。 根据从变速器输入的转速和从变速器输出的转速或从所述传感器获得的轿厢速度传感器计算变速器的实际变速比。 测量在换档开始时将实际变速比改变为变速后的固定齿轮比所花费的时间。 将所存储的预定的移位时间与由此测量的时间进行比较,以检测传输的故障。 结果,驾驶员可以进行诸如执行紧急控制等的测量,并且还可以通过故障报警装置显示故障,以便驾驶员可以进行修理。

    Automatic transmission with erroneous shift preventing function
    9.
    发明授权
    Automatic transmission with erroneous shift preventing function 失效
    自动变速箱带有错误的换档防止功能

    公开(公告)号:US4899278A

    公开(公告)日:1990-02-06

    申请号:US83391

    申请日:1987-08-10

    摘要: In accordance with the invention, as shown, for example, in FIG. 1, when a second counter 14 attains a number of pulses n needed for period measurement, the time required for n pulses to enter is obtained from a second memory 16, which stores the time that prevailed n pulses ago, and a first memory 15, which stores the time prevailing when the present velocity signal enters. Vehicle velocity is calculated from the time obtained. A second timer 11 is reset whenever the velocity signal enters in order to check the pulse input time interval. When the value in the second timer 11 exceeds a predetermined value t, the second counter 14 is reset in order to remeasure the time required for the n pulses to enter. Thereafter, the contents of the first memory 15 are stored in the second memory 16 and the second timer 11 is also reset. Accordingly, when the value in the second timer 11 exceeds the predetermined value t, namely when the vehicle is traveling at a very low velocity, the system forgoes the calculation of vehicle velocity. As a result, shift signals are not outputted to the shift solenoids on the basis of a vehicle velocity different from the present vehicle velocity and, hence, an erroneous shift does not take place. The arrangement of the system is a simple one since only the clock signal of the microcomputer is utilized.

    摘要翻译: 根据本发明,如图所示,例如, 如图1所示,当第二计数器14达到周期测量所需的脉冲数n时,n个脉冲进入所需的时间是从存储n个脉冲之前的时间的第二存储器16和第一存储器15获得的, 其存储当前速度信号进入时的时间。 从所获得的时间计算车速。 每当速度信号进入时,第二计时器11被复位,以便检查脉冲输入时间间隔。 当第二定时器11中的值超过预定值t时,第二计数器14被复位,以便重新测量n个脉冲进入所需的时间。 此后,第一存储器15的内容被存储在第二存储器16中,并且第二定时器11也被复位。 因此,当第二定时器11中的值超过预定值t时,即当车辆以非常低的速度行驶时,系统放弃车速的计算。 结果,换档信号不会根据与当前车速不同的车速而输出到变速螺线管,因此不发生错误换档。 系统的布置是简单的,因为仅使用微计算机的时钟信号。

    Device and method of fail-safe control for electronically controlled
automatic transmission
    10.
    发明授权
    Device and method of fail-safe control for electronically controlled automatic transmission 失效
    电控自动变速箱故障安全控制装置及方法

    公开(公告)号:US4939502A

    公开(公告)日:1990-07-03

    申请号:US282274

    申请日:1988-12-09

    摘要: A fail-safe control device for an electronically controlled automatic transmission to be mounted on a vehicle, the fail-safe control device: detects the battery voltage; previously stores a standard battery voltage; makes a comparison between the thus-detected battery voltage and the above-described standard battery voltage; and switches to an emergency mode of turning off all of shift solenoids when the voltage deviates from the standard upon the comparison. As a result of this, generation of defects that shifting from high speed gear stage to a lower speed gear stage due to defective operation of the shift solenoid and disconnection or the like due to the overvoltage of the solenoid can be prevented. Furthermore, if a failure is detected, it can be notified to a drive.

    摘要翻译: 一种用于安装在车辆上的电子控制自动变速器的故障安全控制装置,故障保护控制装置:检测电池电压; 以前存储标准电池电压; 比较如此检测的电池电压和上述标准电池电压; 并且当比较时电压偏离标准时,切换到关闭所有换档螺线管的紧急模式。 结果,可以防止由于换向螺线管的操作不良而导致由于螺线管的过电压而导致的从高速齿轮级转换到低速档位的缺陷的产生。 此外,如果检测到故障,则可将其通知给驱动器。