公开(公告)号：US4932208A

公开(公告)日：1990-06-12

申请号：US260190

申请日：1988-10-19

申请人： Hideo Koyama ,  Kouji Yamaguchi ,  Yoshikazu Ishikawa ,  Koji Sasajima

发明人： Hideo Koyama ,  Kouji Yamaguchi ,  Yoshikazu Ishikawa ,  Koji Sasajima

IPC分类号： F16H59/14 ,  F16H59/42 ,  F16H61/40 ,  F16H61/4052 ,  F16H61/42 ,  F16H61/425 ,  F16H61/46

CPC分类号： F16H61/425 ,  F16H61/4052 ,  F16H61/46 ,  F16H59/14 ,  F16H59/42

摘要： A hydraulic continuously variable speed transmission comprises a hydraulic closed circuit for hydraulically connecting the hydraulic pump and the hydraulic motor, a direct clutch valve placed in the closed circuit to block it, a speed reduction ratio control actuator to control the speed reduction ratio, a direct clutch actuator for moving said direct clutch valve from a full-open position to a full-closed position, ratio detecting means which detects the speed reduction ratio and valve position detecting means which detects position of the direct clutch valve to find if the direct clutch valve is moved to a slight-open position. The direct clutch valve is moved quickly from the full-open position to the slight-open position when it is found by the ratio detecting means that the speed reduction ratio has become "1", and then the direct clutch valve is moved slowly from the slight-open position to the full-closed position when it is found that the direct clutch valve has been moved to the slight-open position.

公开(公告)号：US4913005A

公开(公告)日：1990-04-03

申请号：US259867

申请日：1988-10-19

申请人： Yoshikazu Ishikawa ,  Kouji Yamaguchi ,  Koji Sasajima

发明人： Yoshikazu Ishikawa ,  Kouji Yamaguchi ,  Koji Sasajima

IPC分类号： B60W10/04 ,  B60W10/06 ,  B60W10/10 ,  B60W10/103 ,  F16H61/40 ,  F16H61/421

CPC分类号： F16H61/421 ,  F16H61/425 ,  F16H61/46 ,  F16H61/462 ,  Y10T477/636

摘要： The speed reduction ratio of a continuously variable speed transmission on a motor vehicle is controlled by continuously varying the speed reduction ratio in a range between a maximum speed reduction ratio and a minimum speed reduction ratio. A top limit speed reduction ratio corresponding to a speed of the motor vehicle and being higher than the minimium speed reduction ratio is set in a low vehicle speed range. The speed reduction ratio is controlled only between the maximum speed reduction ratio and the top limit speed reduction ratio in the low vehicle speed range.

摘要翻译： 通过在最大减速比和最小减速比之间的范围内连续地改变减速比​​来控制机动车辆上的连续变速传动的减速比。 对应于机动车辆的速度并高于最小减速比的上限减速比设定在低车速范围内。 减速比仅在最低速度减速比和低车速范围的上限减速比之间进行控制。

公开(公告)号：US4958492A

公开(公告)日：1990-09-25

申请号：US247410

申请日：1988-09-21

申请人： Kazuya Maki ,  Yoshikazu Ishikawa ,  Kouji Yamaguchi ,  Koji Sasajima

发明人： Kazuya Maki ,  Yoshikazu Ishikawa ,  Kouji Yamaguchi ,  Koji Sasajima

IPC分类号： F16H61/40 ,  F16H61/4052 ,  F16H61/42 ,  F16H61/421 ,  F16H61/46

CPC分类号： F16H61/46 ,  F16H61/4052 ,  B60W2540/12 ,  B60W2710/022 ,  F16H61/421 ,  Y10T477/636 ,  Y10T477/6425

摘要： A method of controlling clutch operation, for a vehicle having a transmission and clutch means comprises setting a reference capacity of said clutch means corresponding to a parameter representing vehicle speed and an accelerator opening representing the driver's intention of acceleration or deceleration: and controlling said degree of the engine power transmitted to the wheels by adjusting the capacity of said clutch means so as to coincide with said reference capacity.An embodiment of the method includes a method of determining clutch engagement completion in continuously variable speed transmission comprises setting a lower limit of an expected clutch engagement completion vehicle speed corresponding to an accelerator opening representing operator's intention of acceleration and deceleration, determining, in vehicle start, that said clutch valve is closed to engage the clutch completely when it is detected that vehicle speed has been below the lower limit and the opening of said clutch valve has been below a given opening, and permitting successive speed ratio control.

公开(公告)号：US4941371A

公开(公告)日：1990-07-17

申请号：US259962

申请日：1988-10-19

申请人： Hideo Koyama ,  Koji Sasajima ,  Kazuya Maki ,  Kouji Yamaguchi ,  Yoshikazu Ishikawa

发明人： Hideo Koyama ,  Koji Sasajima ,  Kazuya Maki ,  Kouji Yamaguchi ,  Yoshikazu Ishikawa

IPC分类号： B60W10/06 ,  B60W10/10 ,  B60W30/18 ,  F16H61/22 ,  F16H61/40 ,  F16H61/4052 ,  F16H61/42 ,  F16H61/425 ,  F16H61/46 ,  F16H61/465

CPC分类号： B60W10/06 ,  B60W10/04 ,  B60W10/103 ,  B60W10/11 ,  B60W30/18 ,  F16H61/4052 ,  F16H61/425 ,  F16H61/46 ,  F16H61/465 ,  F16H2059/363 ,  Y10T477/631 ,  Y10T477/636

摘要： A hydraulic continuously variable speed transmission with a direct clutch valve comprises a hydraulic pump, a hydraulic motor, a hydraulic closed circuit for hydraulically connecting the both, a direct clutch valve placed in the closed circuit, a speed reduction ratio control actuator, and a direct clutch valve controlling device for controlling operations of said direct clutch valve to block the closed circuit when the speed reduction ratio becomes substantially "1". The direct clutch valve controlling device maintains a direct connecting state when an actual engine speed is higher than a direct clutch disconnecting reference engine speed at the speed reduction ratio of approximately "1". Then, the direct clutch valve control device releases the blocking of the closed circuit by the direct valve when a drop of the actual engine speed from the direct clutch disconnecting reference engine speed exceeds a predetermined amount corresponding to the vehicle speed.

公开(公告)号：US4962679A

公开(公告)日：1990-10-16

申请号：US260186

申请日：1988-10-19

申请人： Yoshikazu Ishikawa ,  Kouji Yamaguchi ,  Koji Sasajima

发明人： Yoshikazu Ishikawa ,  Kouji Yamaguchi ,  Koji Sasajima

IPC分类号： B60W10/04 ,  B60W10/10 ,  B60W10/103 ,  F16H61/40 ,  F16H61/421

CPC分类号： F16H61/462 ,  F16H61/425 ,  F16H61/46 ,  Y10T477/636

摘要： The speed reduction ratio of a continuously variable speed transmission is controlled by setting a reference engine speed according to a parameter representing a driver's intention of acceleration, such as the depression of an accelerator pedal, and controlling the speed reduction ratio so as to equalize the engine rotational speed with the reference engine speed. When the parameter is lowered such as by releasing the accelerator pedal, the process of controlling the speed reduction ratio due to a reduction in the reference engine speed caused by the reduction in the parameter is started after a certain time delay.

摘要翻译： 通过根据表示驾驶员的加速意图的参数（例如加速器踏板的按下）来设定基准发动机转速并控制减速比来控制连续变速传动的减速比，以便使发动机 转速与参考发动机转速。 当通过释放加速器踏板来降低参数时，在一定的时间延迟之后开始由于参数减小引起的参考发动机转速的降低来控制减速比的处理。

公开(公告)号：US4976169A

公开(公告)日：1990-12-11

申请号：US270538

申请日：1988-11-14

申请人： Koji Sasajima ,  Yoshikazu Ishikawa

发明人： Koji Sasajima ,  Yoshikazu Ishikawa

IPC分类号： F16H61/40 ,  F16H61/421

CPC分类号： F16H61/46 ,  B60W10/04 ,  B60W10/103 ,  F16H61/4157 ,  F16H61/425 ,  F16H61/465 ,  F16H59/44 ,  Y10T477/631 ,  Y10T477/636 ,  Y10T74/19153

摘要： A method controlling the speed reduction ratio for a continuously variable speed transmission comprises a running mode control method which is carried out when an accelerator opening is opened, an engine brake mode control method which is carried out when said accelerator opening is substantially closed and a transient control method which is carried out over a predetermined period of time when the control is shifted from a state under the engine brake mode control to a state under the running mode control. The transient control method comprises the steps of obtaining a corrected R-REF engine speed immediately after the shift to the running mode control, by adding a difference between the actual engine speed and the R-REF engine speed to the R-REF engine speed set in correspondence to the current accelerator opening, obtaining a further corrected R-REF engine speed during a predetermined period of time following the shift, by adding a correction which is obtained by gradually decreasing the speed difference with time to the R-REF engine speed, and controlling the speed reduction ratio so that the actual engine speed coincides with the corrected R-REF engine speed over the predetermined period of time.

公开(公告)号：US5014574A

公开(公告)日：1991-05-14

申请号：US267496

申请日：1988-11-04

申请人： Koji Sasajima ,  Kazuya Maki ,  Kouji Yamaguchi

发明人： Koji Sasajima ,  Kazuya Maki ,  Kouji Yamaguchi

IPC分类号： B60W10/04 ,  B60W10/06 ,  B60W10/10 ,  B60W10/103 ,  F16H59/44 ,  F16H61/42 ,  F16H61/66

CPC分类号： F16H61/46 ,  F16H61/423 ,  F16H61/462 ,  F16H59/44 ,  Y10T477/636

摘要： A speed control apparatus for a continuously variable speed transmission comprises ratio control units for controlling a speed reduction ratio and a manual value for selecting either a running range where engine power is transmitted to the wheels or a neutral range where the engine power is not transmitted to the wheels. The speed reduction ratio is controlled by the ratio control units so as to coincide with a reference speed reduction ratio corresponding to the vehicle speed detected by a speed sensor when the neutral range is selected by manual valve.

公开(公告)号：US4956972A

公开(公告)日：1990-09-18

申请号：US286381

申请日：1988-12-16

申请人： Koji Sasajima ,  Kouji Yamaguchi

发明人： Koji Sasajima ,  Kouji Yamaguchi

IPC分类号： B60W10/04 ,  B60W10/06 ,  B60W10/10 ,  B60W10/103 ,  F02D29/00 ,  F16H61/04 ,  F16H61/40 ,  F16H61/421

CPC分类号： F16H61/46 ,  F16H61/425 ,  F16H61/462 ,  Y02T10/84 ,  Y10T477/636

摘要： The speed reduction ratio of a continuously variable speed transmission for transmitting engine power with continuously variable speed to drive road wheels is controlled by detecting a parameter representing a driver's intention of acceleration or deceleration, establishing a reference engine speed corresponding to the detected parameter, and controlling the speed reduction ratio so as to equalize an actual engine speed with the reference engine speed, at a predetermined time interval. When the actual engine speed is lower than the reference engine speed, a controlling ouput value for the speed reduction ratio for bringing the actual engine speed into agreement with the reference engine speed is established based on the difference between the actual engine speed and the reference engine speed, and a predicted engine speed after elapse of the predetermined time interval is calculated based on the rate of =change of the actual engine speed. When the predicted engine speed is higher than the reference engine speed, the controlling output value is corrected to lower the predicted engine speed below the reference engine speed after elapse of the predetermined time interval.

摘要翻译： 通过检测表示驾驶员的加速或减速意图的参数，建立与检测到的参数相对应的参考发动机转速来控制用于传递具有连续可变速度的发动机功率以驱动车轮的连续变速传动装置的减速比，并且控制 所述减速比以预定的时间间隔与实际发动机转速以参考发动机转速相等。 当实际发动机转速低于参考发动机转速时，基于实际发动机转速和参考发动机之间的差异，建立用于使实际发动机转速与基准发动机转速一致的减速比的控制输出值 并且基于实际发动机转速的变化率来计算经过预定时间间隔之后的预测发动机转速。 当预测发动机转速高于基准发动机转速时，控制输出值被校正，以便在经过预定时间间隔之后将预测发动机转速降至低于参考发动机转速。

公开(公告)号：US5166877A

公开(公告)日：1992-11-24

申请号：US581393

申请日：1990-09-11

申请人： Yoshikazu Ishikawa ,  Koji Sasajima

发明人： Yoshikazu Ishikawa ,  Koji Sasajima

IPC分类号： F16H61/42 ,  F16H61/425 ,  F16H61/46 ,  F16H61/462

CPC分类号： F16H61/462 ,  F16H61/425 ,  F16H61/46 ,  F16H2059/702 ,  Y10T477/636

摘要： A method of controlling speed reduction the following ratio of a continuously variable speed transmission using change rate di/dt of speed reduction ratio as control value.di/dt=-C.sub.1 *N/V.sup.2 *(dV.sub.o /dt)+C.sub.2 *1/V*(dN.sub.o /dt) +C.sub.3 *N/V.sup.2 *(dV.sub.o /dt-dV/Dt)or,di/dt=-C.sub.4 *(N/V.sup.2)*dV.sub.o /dt*K.sub.cl +C.sub.5 *(1/V)*dN.sub.o /dt.

摘要翻译： 使用减速比的变化率di / dt作为控制值来控制速度下降的连续变速传动的以下比例的方法。 di / dt = -C1 * N / V2 *（dVo / dt）+ C2 * 1 / V *（dNo / dt）+ C3 * N / V2 *（dVo / dt-dV / Dt）或di / dt = -C4 *（N / V2）* dVo / dt * Kcl + C5 *（1 / V）* dNo / dt。

公开(公告)号：US4951468A

公开(公告)日：1990-08-28

申请号：US270756

申请日：1988-11-14

申请人： Koji Sasajima ,  Yoshikazu Ishikawa

发明人： Koji Sasajima ,  Yoshikazu Ishikawa

IPC分类号： F16K31/06 ,  H01H47/32

CPC分类号： F16H61/425 ,  F16H61/46 ,  H01H47/325

摘要： A duty ratio for operating a solenoid is determined by calculating a duty ratio in each of basic periods and determining an operational time for which the solenoid is to be operated within each of the basic periods, based on the calculated duty ratio. When the duty ratio is reduced to the extent that the operational time is shorter than a minimum possible time of operation of the solenoid, an operational time for which the solenoid is to be operated is determined within a new period composed of a plurality of consecutive basic periods.

摘要翻译： 通过基于所计算的占空比，通过计算每个基本周期中的占空比并确定在每个基本周期内操作螺线管的操作时间来确定螺线管操作的占空比。 当占空比降低至操作时间短于螺线管的最小可能操作时间时，在由多个连续的基本构成的新的周期内确定要操作螺线管的操作时间 时期。