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1. 发明申请

WO1988010380A1 TRANSMISSION CONTROLLER 审中-公开
标题翻译：传输控制器
公开(公告)号：WO1988010380A1
公开(公告)日：1988-12-29
申请号：PCT/JP1988000631
申请日：1988-06-24
申请人： KABUSHIKI KAISHA KOMATSU SEISAKUSHO , ASAYAMA, Yoshio , TSUBOTA, Makio , OKURA, Yasunori , SATO, Takayuki
发明人： KABUSHIKI KAISHA KOMATSU SEISAKUSHO
IPC分类号： F16H05/64
CPC分类号： F16H61/0206 , F16H59/24 , F16H59/44 , F16H61/061 , F16H61/12 , F16H61/70 , F16H2059/6807 , F16H2059/683 , F16H2061/0209 , F16H2061/1204 , F16H2061/1208 , F16H2061/1216 , F16H2061/1232 , F16H2061/1252 , F16H2061/1268 , F16H2061/1276 , Y10T74/19251 , Y10T477/69383 , Y10T477/69387
摘要： When a speed is to be changed, a transmission controller of the present invention judges a load, the quantity of a remaining oil in each transmission clutch (F, R, 1-4) and a speed change path, from which stage to which stage, and changes an electrical instruction pattern to be applied to pressure control valves (51-56) for required transmission clutches in accordance with the result of this judgement so that the speed change can be made always smoothly irrespective of a driving condition. The electrical instruction (C1-C4) to be applied to each pressure control valve (51-56) is compared with an output current (I1-I6) of a drive circuit and with the output (S1-S6) of clutch pressure detection means (101-106) and clutch abnormality is detected on the basis of the result of this comparison. When abnormality is detected, suitable measures are taken to reliably prevent double engagement of clutch.

2. 发明申请

WO1990005865A1 METHOD AND APPARATUS FOR CONTROLLING TRANSMISSION 审中-公开
标题翻译：用于控制传输的方法和装置
公开(公告)号：WO1990005865A1
公开(公告)日：1990-05-31
申请号：PCT/JP1989001191
申请日：1989-11-22
申请人： KABUSHIKI KAISHA KOMATSU SEISAKUSHO , OKURA, Yasunori
发明人： KABUSHIKI KAISHA KOMATSU SEISAKUSHO
IPC分类号： F16H61/06
CPC分类号： F16H61/702 , F16H59/18 , F16H59/54 , F16H59/68 , F16H61/061 , F16H61/08 , F16H63/44 , F16H2059/6807 , F16H2061/0096 , F16H2061/0258 , F16H2306/44 , F16H2306/52
摘要： In a construction wherein an electronic pressure regulating valve (31 ∩ 36) is connected individually to each clutch of a two-stage transmission, i.e. main transmission (1st, 2nd, R, 4th, 3rd) and subtransmission (L, H) and each clutch can be controlled independently by a controller (10), the present invention cuts off the supply of an oil pressure to a transmission clutch for a present speed stage on the basis of a transmission instruction when the present speed stage is shifted down to the next stage at the time of power-ON, operates the pressure regulating valve so as to start the supply of the oil pressure to this transmission clutch at the point of time when the relative number of rotations at the transmission clutch for the next stage transmission becomes zero, then increases gradually the supply oil pressure after confirmation of the end of filling time to this transmission clutch, and thus prevents offensive feeling due to the speed change shock applied to an operator in whichever state the acceleration operation quantity and the brake operation state may be. In the shift-down operation involving the operations of the transmission clutches of both main and sub-clutches, a torque-OFF time is not provided to the sub-transmission clutch but the supply of the oil pressure to the clutch for the next stage transmission is started immediately so as to make the gradually increasing supply of the oil pressure. After this clutch is meshed, the gradually increasing supply of the oil pressure to the main transmission clutch is made after the filling time described above is over, and offensive feeling due to the transmission shock is prevented.

3. 发明申请

WO1988007636A1 HYDRAULIC CLUTCH PRESSURE CONTROL APPARATUS 审中-公开
标题翻译：液压离合器压力控制装置
公开(公告)号：WO1988007636A1
公开(公告)日：1988-10-06
申请号：PCT/JP1987000929
申请日：1987-11-30
申请人： KABUSHIKI KAISHA KOMATSU SEISAKUSHO , ASAYAMA, Yoshio , TSUBOTA, Makio , OKURA, Yasunori , SATO, Takayuki
发明人： KABUSHIKI KAISHA KOMATSU SEISAKUSHO
IPC分类号： F16D25/14
CPC分类号： F16D48/062 , F16D48/066 , F16D2048/0275 , F16D2500/1026 , F16D2500/1112 , F16D2500/3024 , F16D2500/3025 , F16D2500/3026 , F16D2500/5014 , F16D2500/7042 , F16D2500/70424 , F16H61/061 , F16H2059/6807 , F16H2061/0209 , F16H2061/0288 , F16H2061/062 , Y10T137/7759 , Y10T137/86622
摘要： A hydraulic clutch pressure control apparatus according to the present invention is used for a transmission in a construction machine, and provided for each of a plurality of clutches (1), which are controlled thereby separately. This hydraulic clutch pressure control apparatus has a first valve (3) for supplying an oil at a high flow rate to a clutch, and a second valve (4) for electronically controlling a clutch pressure, and is adapted to detect the completion of a filling operation and a clutch pressure on the basis of the movements of a spool (21) in the first valve (3) and a separately provided piston by a simply-constructed means. Different pressure receiving areas are provided on the spool (21) in the first valve (3) so as to prevent the occurrence of an overshooting pressure at the time of completion of a filling operation.

4. 发明申请

WO1990004733A1 SPEED CHANGE CONTROL METHOD FOR HYDRAULICALLY OPERATED MULTISTEP TRANSMISSIONS 审中-公开
标题翻译：用于液压操作多路传输的速度变化控制方法
公开(公告)号：WO1990004733A1
公开(公告)日：1990-05-03
申请号：PCT/JP1989001096
申请日：1989-10-25
申请人： KABUSHIKI KAISHA KOMATSU SEISAKUSHO , SOKA, Kohei , KANEKO, Kiyoshi , OKURA, Yasunori , KATO, Takeo
发明人： KABUSHIKI KAISHA KOMATSU SEISAKUSHO
IPC分类号： F16H61/10
CPC分类号： F16H61/10 , F16H59/70 , F16H61/143 , F16H2061/146
摘要： A speed change control method for hydraulically operated multistep transmissions, which is capable of preventing the shift hunting without reducing the acceleration, and of minimizing a shock, which occurs when the speed is changed, even when a small-capacity hydraulic clutch is used. According to this speed change control method, a speed changing operation is carried out by using a controller (30) when the speed increasing/decreasing conditions have been established. A speed decreasing operation subsequent to a speed increasing operation, and a speed increasing operation subsequent to a speed decreasing operation are carried out after the lapse of a long speed change suspension time, and a speed changing operaton in a case other than these cases is carried out after the lapse of a short speed change suspension time. Only when the speed is changed from a high-speed step to a lower speed step through a coasting operation, a speed decreasing operation is carried out with a direct-coupled clutch (8) in a torque converter (3) left in an engaged state, and, in a case other than this case, a speed change operation is carried out with the direct-coupled clutch in a released state.
摘要翻译：即使在使用小容量的液压离合器的情况下，也可以在不降低加速度的情况下防止换档而使速度变化时的冲击最小化的液压多级变速器的变速控制方法。根据该变速控制方法，当速度上升/下降条件已经建立时，通过使用控制器（30）来执行变速操作。在经过长时间变更暂停时间之后，执行增速操作之后的减速操作和减速操作之后的加速操作，并且在不同于这些情况的情况下进行变速操作经过短暂的改变暂停时间之后。只有当速度从高速踏步改变到低速踏步通过滑行操作时，通过直接联接的离合器（8）在转向器（3）中处于接合状态的同时进行减速操作，并且在这种情况下，在释放状态下，直联离合器进行变速操作。

5. 发明申请

WO1986004969A1 METHOD OF CONTROLLING A SPEED CHANGE CLUTCH IN A TRANSMISSION 审中-公开
标题翻译：控制变速器中变速离合器的方法
公开(公告)号：WO1986004969A1
公开(公告)日：1986-08-28
申请号：PCT/JP1986000076
申请日：1986-02-19
申请人： KABUSHIKI KAISHA KOMATSU SEISAKUSHO , ASAYAMA, Yoshio , TSUBOTA, Makio , TAKITANI, Yukitaka , OKURA, Yasunori
发明人： KABUSHIKI KAISHA KOMATSU SEISAKUSHO
IPC分类号： F16H05/66
CPC分类号： F16H61/061 , F16D48/066 , F16D2500/30402 , F16D2500/30406 , F16D2500/3144 , F16D2500/70406 , F16D2500/70412 , F16H59/52 , F16H61/0021 , F16H2059/6807 , Y10S477/90 , Y10S477/904 , Y10T477/692 , Y10T477/6937 , Y10T477/69387
摘要： A plurality of patterns for gradually increasing the clutch hydraulic pressure, which maintain a jerk value at a desired value, are set in advance depending upon the vehicle weight and the speed of the gear. When the speed is to be changed, a pattern for gradually increasing the clutch hydraulic pressure corresponding to the vehicle weight and the speed of the gear to be selected, is selected out of the plurality of patterns for gradually increasing the clutch hydraulic pressure. The hydraulic pressure of the speed change clutch that is to be engaged, is gradually increased according to the thus selected pattern for gradually increasing the clutch hydraulic pressure. At a moment when a speed change instruction is issued, the oil is supplied to the speed change clutch that is to be engaged the next time. From a moment it is confirmed that the filling time is finished for the clutch, the hydraulic pressure is gradually increased for the clutch, and the hydraulic pressure is decreased for the speed change clutch that is being engaged at the above-mentioned moment.
摘要翻译：根据车辆的重量和齿轮的速度，预先设定多个用于逐渐增加离合器液压的图案，其将跳动值保持在期望值。当要改变速度时，从用于逐渐增加离合器液压的多个模式中选出用于逐渐增加与车辆重量相应的离合器液压和所选齿轮的速度的图案。要接合的变速离合器的液压根据所选择的图案逐渐增加，以逐渐增加离合器液压。在发出变速指令的时刻，油被供给到下次要接合的变速离合器。从此刻可以确认离合器的填充时间结束，离合器的液压逐渐增大，对于在上述时刻接合的变速离合器，液压降低。

6. 发明申请

WO1988009454A1 LOCKUP CLUTCH CONTROL APPARATUS AND METHOD 审中-公开
标题翻译：锁定离合器控制装置和方法
公开(公告)号：WO1988009454A1
公开(公告)日：1988-12-01
申请号：PCT/JP1988000485
申请日：1988-05-23
申请人： KABUSHIKI KAISHA KOMATSU SEISAKUSHO , ASAYAMA, Yoshio , TSUBOTA, Makio , OKURA, Yasunori , SATO, Takayuki
发明人： KABUSHIKI KAISHA KOMATSU SEISAKUSHO
IPC分类号： F16H45/02
CPC分类号： F16H61/143 , F16H59/02 , F16H59/24 , F16H59/40 , F16H59/52 , F16H59/70 , F16H61/70 , F16H2059/385 , F16H2059/6807 , F16H2061/0096 , F16H2061/0209 , F16H2061/0258 , F16H2061/145 , F16H2061/146 , Y10T74/19163 , Y10T477/6351 , Y10T477/63525
摘要： An electronic pressure control valve (40) is connected to a lockup clutch (4) directly connected to input/output shafts (1a, 2a) of a torque converter (2). In order to change the speed, the lockup clutch (4) is disconnected when the filling of transmission clutches (21-24) to be engaged next has been finished, to prevent the nonavailability of torque. With respect to the lockup clutch (4) in which an inner pressure (Pt) of the torque converter is applied to a back pressure portion of a piston, the inner pressure of the torque converter (2) is applied to the side of a proportional solenoid (42) of the pressure control valve (40), to enable an initial pressure to decrease. During a speed changing operation, the lockup clutch (4) is not completely disconnected to maintain the low pressure, whereby a shock due to the lockup clutch shifting operation is lessened. In order to gradually increase the hydraulic pressure, a degree of opening of a throttle, the weight of the vehicle and a gear ratio are determined, and a rate of gradual increase is varied in accordance with these values. In order to drive the vehicle at a regular speed, the hydraulic pressure in the lockup clutch is controlled so that it is in the vicinity of the level of the engine output torque, to thereby widen the region of travelling with the lockup clutch used.
摘要翻译：电子压力控制阀40连接到直接连接到变矩器（2）的输入/输出轴（1a，2a）的锁止离合器（4）。为了改变速度，当接下来要接合的变速器离合器（21-24）的填充已经完成时，锁止离合器（4）被断开，以防止扭矩不可用。关于将变矩器的内部压力（Pt）施加到活塞的背压部的锁止离合器（4），将变矩器（2）的内部压力施加到比例侧压力控制阀（40）的螺线管（42），以使初始压力降低。在变速操作期间，锁止离合器（4）没有完全断开以保持低压，从而减少了由于锁止离合器变速操作引起的冲击。为了逐渐增加液压，确定节流阀的开度，车辆的重量和齿轮比，并且逐渐增加的速度根据这些值而变化。为了以规律的速度驱动车辆，控制锁止离合器中的液压，使其处于发动机输出转矩水平附近，从而扩大使用的锁止离合器的行驶区域。

7. 发明申请

WO1988008094A1 METHOD AND APPARATUS FOR CONTROLLING TRANSMISSIONS 审中-公开
标题翻译：用于控制传输的方法和装置
公开(公告)号：WO1988008094A1
公开(公告)日：1988-10-20
申请号：PCT/JP1988000364
申请日：1988-04-11
申请人： KABUSHIKI KAISHA KOMATSU SEISAKUSHO , ASAYAMA, Yoshio , TSUBOTA, Makio , OKURA, Yasunori , SATO, Takayuki
发明人： KABUSHIKI KAISHA KOMATSU SEISAKUSHO
IPC分类号： F16H05/12
CPC分类号： F16H61/702 , F16H61/0021 , F16H61/0251 , F16H61/08 , F16H61/682 , F16H2059/6807 , F16H2061/0209 , F16H2061/0451 , F16H2306/36 , Y10T74/19251
摘要： This invention relates to a method and apparatus for controlling a structure in which electronic pressure control valves (21-24) are connected separately to the clutches (H, L, 1st, 2nd) in a transmission having a two-step clutch system consisting of main speed change gears (1st, 2nd) and auxiliary speed change gears (H, L) to enable each clutch to be controlled independently. In the case where a discharge rate of a pump at the time of starting the engine is not sufficiently high with both auxiliary clutches and main clutches required to be engaged, the speed change is done by supplying a hydraulic pressure at staggered time to the clutches (H, L) in the main speed change gear and the clutches (1st, 2nd) in the auxiliary speed change gear so that the supply of a hydraulic pressure to the main clutches is started after the filling of the auxiliary clutches has been completed, whereby variations in the filling time, which is ascribed to a decrease in the discharge rate of the pump, are minimized.

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