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公开(公告)号：JP2009243513A
公开(公告)日：2009-10-22
申请号：JP2008088180
申请日：2008-03-28
Applicant: Mazda Motor Corp , マツダ株式会社
Inventor： TERAOKA YOICHI , KOMORI MASARU , KAWAMURA SHUICHI , USUDA KOHEI , MITSUYOSHI TAKUO , INAGAKI AKINA
IPC: F16H61/02 , B60W10/04 , B60W10/06 , B60W10/10 , B60W10/11 , F02D29/00 , F02D41/12 , F02D45/00 , F16H59/34 , F16H61/14 , F16H61/68 , F16H61/684
Abstract: PROBLEM TO BE SOLVED: To reduce drivers' sense of discomfort by smooth changes of vehicle deceleration when new fuel supply is restarted from a fuel cutting state at the time of deceleration. SOLUTION: A control device for a power train is constituted so that at the time of deceleration, fuel cutting for cutting fuel supply to an engine is enforced and fuel supply to the engine is restarted at a predetermined condition and provided with a quasi-interlocking control portion 23 which causes quasi-interlocking by adding a prescribed torque capacity to a quasi-interlocking element which is a frictional engaging element except the frictional engaging element which forms a shift at the restart of fuel supply. The quasi-interlocking is also generated in synchronism with the restart of fuel supply. COPYRIGHT: (C)2010,JPO&INPIT
Abstract translation: 要解决的问题：在减速时从燃料切断状态重新启动新的燃料供给时，通过车辆减速的平稳变化来减少驾驶员的不适感。 解决方案：用于动力传动系的控制装置构造成使得在减速时，强制执行向发动机供应燃料的燃料切断，并且在预定条件下重新启动对发动机的燃料供给，并提供准准 - 闭锁控制部分23，其通过向作为在燃料供应重新开始时形成换档的摩擦接合元件之外的摩擦接合元件的准互锁元件添加规定的扭矩能力而进行准互锁。 准联锁也是与重新启动燃油供应同步产生的。 版权所有（C）2010，JPO＆INPIT
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公开(公告)号：JP2009243512A
公开(公告)日：2009-10-22
申请号：JP2008088179
申请日：2008-03-28
Applicant: Mazda Motor Corp , マツダ株式会社
Inventor： MITSUYOSHI TAKUO , KOMORI MASARU , KAWAMURA SHUICHI , SHIROTANI YOSHITAKA , TERAOKA YOICHI , USUDA KOHEI , INAGAKI AKINA
IPC: F16H61/00 , F16H59/68 , F16H61/686
Abstract: PROBLEM TO BE SOLVED: To improve durability by suppressing damage to a friction-engagement element (a shift clutch) as a slipping object while maintaining the original torque fluctuation absorbing capacity of slip control.
SOLUTION: This control device for an automatic transmission is so configured that when shifting gears, a slip control means performs the slip control to slip the gear shift clutch forming shift stages according to a target slippage ratio. When performing the slip control, first control for completely engaging one second gear shift clutch slipping a first gear shift clutch of both gear shift clutches and second control for completely engaging one first gear shift clutch slipping the second gear shift clutch, are selectively used based on predetermined use conditions.
COPYRIGHT: (C)2010,JPO&INPITAbstract translation: 要解决的问题：通过抑制作为滑动物体的摩擦接合元件（换档离合器）的损坏，同时保持滑动控制的原始扭矩波动吸收能力来提高耐久性。 解决方案：用于自动变速器的这种控制装置被构造成当变速时，滑差控制装置执行滑差控制，以根据目标滑动比滑动换档离合器形成变速级。 当执行滑移控制时，首先控制完全接合一个第二变速离合器，其滑动两个变速离合器的第一变速离合器和用于完全接合滑动第二变速离合器的一个第一变速离合器的第二控制，基于 预定使用条件。 版权所有（C）2010，JPO＆INPIT
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公开(公告)号：JPH06207657A
公开(公告)日：1994-07-26
申请号：JP17676791
申请日：1991-07-17
Applicant: MAZDA MOTOR
Inventor： MORISHIGE TOMOTOSHI , KAWAMURA SHUICHI , SAWAZAKI TOMOO
Abstract: PURPOSE:To prevent overshoot by satisfactorily carrying out feed-back control for the line pressure of a hydraulically operated transmission, particularly in view of a delay in variation in actual line pressure due to a change in desired line pressure and a change in basic control volume upon occurrence of a variation in operating condition. CONSTITUTION:A hydraulic control device for a hydraulically operated transmission, comprises a desired hydraulic pressure setting means 71 and a basic control volume setting means 72, and a feed-back control computing means 74 for computing a feed-back control value in accordance with a deviation between an actual line pressure at the present time, and a line pressure corresponding to an operating condition at the time which is a setting time before the present time.
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公开(公告)号：JPH06109114A
公开(公告)日：1994-04-19
申请号：JP25943692
申请日：1992-09-29
Applicant: MAZDA MOTOR
Inventor： SAWAZAKI TOMOO , DOI JUNICHI , KAWAMURA SHUICHI , MORI YUJI
Abstract: PURPOSE:To provide a hydraulic control device of a hydraulically operated transmission capable of surely securing the required line pressure without unnecessarily increasing the line pressure. CONSTITUTION:When the engine speed does not exceed the specified value a1, the target line pressure corresponding to the actual engine torque is set by a control unit CU, and the required minimum line pressure is set, the pump loss is reduced, and the fuel consumption is improved. When the engine speed exceeds the specified value a2 (>a1), the target line pressure corresponding to the maximum throttle opening is set, and the line pressure is prevented from being reduced to the required line pressure by the delay in responsiveness of the hydraulic pressure, and the belt slip of CVTI10 is surely prevented. When the engine speed ranges from a1 to a2, the target line pressure is increased according to the engine speed, and the required line pressure is secured without damaging the fuel consumption.
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公开(公告)号：JPH02118260A
公开(公告)日：1990-05-02
申请号：JP27150688
申请日：1988-10-26
Applicant: MAZDA MOTOR
Inventor： KAWAMURA SHUICHI
Abstract: PURPOSE:To improve accelerating performance by restraining the controlling action of increase in gear ratio by a gear-ratio restraining means when an input torque indicates a rate of change in a negative direction at the time of shift down accompanying an accelerating operation. CONSTITUTION:An input torque rate-of-change operating portion 71 obtains the rate of change of input torque from a present input torque value by a primary pulley input torque operating portion 69 and a previous input torque value stored in a memory means 70. At the time of sudden acceleration, in the case of the increasing zone of pulley ratio accompanying the shift down of a transmission with a negative rate of change of input torque, a target engine speed determining portion 66 correct an original target engine speed which is obtained from a map to be smaller by a defined value and, after that, set same to a final target engine speed, and a duty ratio operating portion 73 calculates a duty ratio for controlling gear ratio corresponding thereto. Thereby, the deficiency of torque at the time of accelerating can be prevented.
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Patent Agency Ranking
公开(公告)号：JPH06109113A
公开(公告)日：1994-04-19
申请号：JP25943592
申请日：1992-09-29
Applicant: MAZDA MOTOR
Inventor： KAWAMURA SHUICHI , MORI YUJI
Abstract: PURPOSE:To provide a speed change ratio control device of a continuously variable transmission capable of sufficiently improve the acceleration feeling and increasing the speed change responsiveness at the initial acceleration condition. CONSTITUTION:The stationary target speed of a primary pulley 31 is computed by a control unit CU in the normal condition, and the primary speed is feedback controlled so as to follow this stationary target speed. On the other hand, in the transitional condition (acceleration and deceleration), the throttle opening after the time period of delay in response of the control system is expected based on the throttle opening and the rate of change by means of the control unit CU, and the transitional target speed of the primary pulley 31 is computed by the annealing treatment based on this expected value of the throttle opening. The primary speed is feedforward controlled followed by this transitional target speed, increasing the speed change responsiveness in the transitional condition.
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公开(公告)号：JPH05126239A
公开(公告)日：1993-05-21
申请号：JP18531091
申请日：1991-06-29
Applicant: MAZDA MOTOR
Inventor： MORISHIGE TOMOTOSHI , SAWAZAKI TOMOO , KAWAMURA SHUICHI
IPC: F16H9/00 , F16H59/48 , F16H61/00 , F16H61/02 , F16H61/662
Abstract: PURPOSE:To provide a speed change control device of a continuously variable transmission for a vehicle such that a transient control target value of change amount smaller than a control target value at steady time can be accurately set at transient time of acceleration and deceleration. CONSTITUTION:At the time of accelerating operation, a steady target value rotational speed Ns of a primary pulley is increased by steps, but this time transient target value rotational speed Npt (i) of the primary pulley is set based on a deviation NsXDELTA (speed change ratio deviation) between Ns (i) and the preceding time Npt (i-1) and controlled so as to approach the steady target rotational speed Ns slowly in a manner of curve. In this way, at the time of acceleration, most of increase amount of an engine output is not consumed by increasing an engine rotational speed but distributed to running torque to improve an accelerating property in the beginning of acceleration and the accelerating property thereafter. Also at the time of deceleration, similar speed change control is applied.
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公开(公告)号：JPH0552255A
公开(公告)日：1993-03-02
申请号：JP20819591
申请日：1991-08-20
Applicant: MAZDA MOTOR
Inventor： SAWAZAKI TOMOO , MORISHIGE TOMOTOSHI , KAWAMURA SHUICHI
Abstract: PURPOSE:To improve the stability of the idle operation state by preventing the reduction of the number of idle revolution by adjusting the line pressure so as to correspond to the reduction of the transmission torque in the ordinary case, while reducing the load of an oil pump in a low speed region, in the control for lowering the line pressure accompanied with the reduction of the engine load, in a hydraulic operation type speed change gear. CONSTITUTION:A hydraulic controller is equipped with a hydraulic control means for controlling the line pressure according to the operation state, delaying means 82 for delaying the line pressure reduction when the control for lowering the line pressure is carried out, and a delay prohibiting means 83 for prohibiting the delay of the line pressure reduction when the number of engine revolution becomes a prescribed value or less.
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公开(公告)号：JPH03194263A
公开(公告)日：1991-08-23
申请号：JP33163389
申请日：1989-12-20
Applicant: MAZDA MOTOR
Inventor： KAWAMURA SHUICHI
Abstract: PURPOSE:To suppress a torque shock by suppressing an increase of lockup connecting force when a fluctuation amount of detected turbine torque is increased to a preset value or more, when a lockup clutch of a fluid coupling is connected. CONSTITUTION:When a lockup clutch 28 is put in connection, its connecting force is controlled by a connecting force control means 120, but torque of a turbine 23 in a fluid coupling 2 at this time is detected by a detecting means 121. The level of a fluctuation amount of this detected turbine torque in comparison with a preset value is decided, and when the fluctuation amount is below the preset value, connecting force by the control means 120 is increased as it is by a connecting force suppressing means 122, but when the fluctuation amount of the turbine torque is increased beyond the preset value, tightening force of the lockup clutch 28 is suppressed from increasing. Thus, a shock can be effectively suppressed when the lockup clutch is put in connection.
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公开(公告)号：JPH0262476A
公开(公告)日：1990-03-02
申请号：JP21372488
申请日：1988-08-30
Applicant: MAZDA MOTOR
Inventor： KAWAMURA SHUICHI , NOGAMI TAKASHI
IPC: F02D29/00 , F02D41/04 , F16H41/30 , F16H45/00 , F16H47/00 , F16H47/06 , F16H59/18 , F16H59/54 , F16H61/00 , F16H61/02 , F16H61/20
Abstract: PURPOSE:To miniaturize an oil pump and improve the fuel consumption by controlling the input torque transmitted from a torque converter to an oil pressure type automatic transmission less than the prescribed value when the stop of a vehicle is detected. CONSTITUTION:When a brake detecting signal is input from a brake detecting switch 88, a control unit 78 excites the electromagnetic solenoid of a stopper mechanism 89, and a stopper pin is displaced to the projecting position so as to prevent the operating movement of an accel pedal to the full open position, and the input torque transmitted from a torque converter to a continuous transmission is controlled to be the prescribed value. As a result, the necessity of setting the line pressure high to the range corresponding to the unnecessary torque range by the first electro magnetic solenoid valve 51 is eliminated. Consequently, the line pressure can be restrained lower so that the structure of an oil pump for attaining to this line pressure can be miniaturized.
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