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1. 发明专利

JPS60199756A LIQUID-PRESSURE CONTROLLER FOR ANTISKID APPARATUS 失效
公开(公告)号：JPS60199756A
公开(公告)日：1985-10-09
申请号：JP5713084
申请日：1984-03-23
申请人： NIPPON DENSO CO , TOYOTA MOTOR CO LTD
发明人： TSURU NAOHIKO , MATSUURA RIYOUICHI , OOTSUKI HIROMI , FUJINAMI HIROSHI , HORI SHINICHI , NOMURA YOSHIHISA , OKA HIROYUKI
IPC分类号： B60T8/48 , B60T8/1761 , B60T8/46 , B60T8/50
摘要： PURPOSE:To improve brake feeling by forming a bypass conduit, bypassing a conduit equipped with throttles and liquid-pressure control valves and installing a selector valve which is closed when the liquid control valve controls antiskid, into said bypass conduit. CONSTITUTION:When brake is applied, the pressurized liquid in a master cylinder is supplied into each wheel cylinder 22, 24 through a bypass conduit 70 and a selector valve 72 at communication position. When wheels are put into skid state, a control unit 55 switches control valves 32 and 60 into decompression mode (c) or holding mode (b) and switches the selector valve 72 into cut-off position at the same time. Therefore, pressurized liquid is not sent into the wheel cylinders furthermore. Though the pressurized liquid supplied from a pump 48 is supplied into control valves 32 and 60, the acting of the pressurized liquid onto the master cylinder 16 is suppressed by a passage switching valve 29. When the revolution of the wheel restores, the control valves 32 and 60 are switched to the pressure increasing mode (a), and the pressurized liquid in the master cylinder 16 is sent into the wheel cylinders 22 and 24 slowly through throttles 31 and 58.

2. 发明专利

JPS6099752A HYDRAULIC CONTROL UNIT FOR ANTISKID DEVICE 失效
公开(公告)号：JPS6099752A
公开(公告)日：1985-06-03
申请号：JP20802683
申请日：1983-11-04
申请人： NIPPON DENSO CO , TOYOTA MOTOR CO LTD
发明人： OOTSUKI HIROMI , MATSUURA RIYOUICHI , FUJINAMI HIROSHI , HORI SHINICHI , NOMURA YOSHIHISA , OKA HIROYUKI
IPC分类号： B60T8/48 , B60T8/172 , B60T8/1764 , B60T8/42
摘要： PURPOSE:To prevent a brake pedal from causing its kickback, by cutting off interconnection between a pressure fluid feed pipe line to a master cylinder and a hydraulic pump in time of a pressure reducing mode in a hydraulic control valve, while accumulating discharge force of the hydraulic pump with an accumulator. CONSTITUTION:At braking, when symmetrical front wheels W1 and W2 each to the specified deceleration, each of hydraulic control valves 34 and 62 is selected to a (c) position by means of control signals S1 and S2. Then, a brake fluid of wheel cylinders 24 and 26 flows in a reservoir 44. And, a hydraulic pump 48 is started to operate when either of the signal S1 or S2 reaches to a high level and in addition, a selector valve 30 is selected to a cutoff position because these hydraulic control valves 34 and 62 are situated in the (c) position. And, the hydraulic pump 48 sucks up the brake fluid inside the reservoir 44, then it applies pressure to the fluid and feeds it to an accumulator 54 in a reflux pipe line 52. Since the selector valve 30 is situated in a cutoff position, no kickback occurs in a brake pedal 23. As for rear wheels, that goes for them too.

3. 发明专利

JPS6099753A HYDRAULIC SELECTOR VALVE 失效
公开(公告)号：JPS6099753A
公开(公告)日：1985-06-03
申请号：JP20802783
申请日：1983-11-04
申请人： NIPPON DENSO CO , TOYOTA MOTOR CO LTD
发明人： OOTSUKI HIROMI , MATSUURA RIYOUICHI , FUJINAMI HIROSHI , HORI SHINICHI , NOMURA YOSHIHISA , OKA HIROYUKI
IPC分类号： B60T8/48 , B60T8/1761 , B60T8/42
摘要： PURPOSE:To prevent a kickback from occurring in time of selection, by interconnecting a second fluid inlet to its outlet through after interconection between a fluid outlet and a first fluid inlet is completely cut off in time of selecting a first fluid inlet side passage being usually interconnected to the fluid outlet to a second fluid inlet side passage. CONSTITUTION:In usually, a ball valve 38 is pressed by a spring 40, and a flow passage 34 is closed whereby a first inlet port 18 and its outlet port 22 are interconnected through. When brake fluid pressure is fed out of a second inlet port 20, a piston 44 shifts to the right, while a ball valve 50 shifts to the same direction in a state of having a through flow passage 46 closed. And, the ball valve 38 shifts to the right via a rod 56, seating it on the other side seat valve, and thereby the first inlet port 18 is intercepted from its outlet port 22. At that point, movement in the ball valve 50 to the right is stopped. Afterward, when the piston 44 further shifts to the right, the ball valve 50 comes off the valve seat whereby the second inlet port 20 and the first outlet port 22 are interconnected through. With this constitution, a fluid in the second inlet port 20 is in no case extered in the first inlet port 18.

4. 发明专利

JPS6033160A ANTISKID BRAKING DEVICE FOR VEHICLE 失效
公开(公告)号：JPS6033160A
公开(公告)日：1985-02-20
申请号：JP14039383
申请日：1983-07-29
申请人： TOYOTA MOTOR CO LTD , NIPPON DENSO CO
发明人： NOMURA YOSHIHISA , OKA HIROYUKI , OOTSUKI HIROMI
IPC分类号： B60T8/48 , B60T8/36
摘要： PURPOSE:To simplify a brake structure, by using only one solenoid both as a solenoid performing the selection of a directional selector valve and a solenoid for an on-off valve cutting off the interconnection between the selector valve and a master cylinder, in time of skid controlling. CONSTITUTION:An on-off valve 14 interconnecting or intercepting a master cylinder to or from a directional selector valve 18 consists of a ball 130 and a valve seat 128 formed in a piston 48, and both the ball 130 and the piston 48 are produced with a magnetic material. Therefore, in time of antiskid controlling, a solenoid 66 is excited by a microcomputer, while the directional selector valve 18 is selected to a position closing a wheel cylinder or to a position interconnected it to a reservoir. Along with this selection, the ball 130 is accurately seated on a valve seat 128 by excitation of the solenoid 66 whereby the on-off valve 14 closes and the master cylinder and the selector valve 18 are intercepted from each other. With this constitution, when brake pressure is repressurized, the piston 48 operates with certainly by hydraulic pressure out of the master cylinder and the on-off valve 46 opens.

5. 发明专利

JPS6033159A ANTISKID BRAKING DEVICE FOR VEHICLE 失效
公开(公告)号：JPS6033159A
公开(公告)日：1985-02-20
申请号：JP14039283
申请日：1983-07-29
申请人： TOYOTA MOTOR CO LTD , NIPPON DENSO CO
发明人： NOMURA YOSHIHISA , OKA HIROYUKI , OOTSUKI HIROMI
IPC分类号： B60T8/48 , B60T8/36 , B60T8/44
摘要： PURPOSE:To improve a brake feeling ever so better as well as to simplify a brake structure, by making each of constituent parts of a control valve, which actuates simultaneously with selection of a directional selector valve in time of skid controlling and intercepts a master cylinder from the selector valve as well as to feed a wheel cylinder with hydraulic pressure of a pump, turn to those being made of a magnetic material in structure. CONSTITUTION:A control valve 70 consists of a solenoid on-off valve 14 interconnecting and intercepting a directional selector valve 18 to and from a master cylinder and an on-off valve 46 feeding the directional selector valve 18 with a discharged fluid out of a pump. Both housings of the control valve 70 and the selector valve 18 are formed by a solid housing 72. And, a piston 48 and a tappet 130 opening the on-off valve 46 is manufactured with a magnetic material. In time of skid controlling, the selector valve 18 is selected to a closing position of the wheel cylinder or to an interconnecting position to the reservoir by a microcomputer, while the on-off valve 14 closes as the tappet 130 is accurately seated on a valve seat 128 by excitation of a solenoid 64. Therefore, in time of pressure application, the piston 48 operates by hydraulic pressure of the master cylinder, opening the on-off valve 46 and feeding the wheel cylinder with the discharged fluid of the pump.

6. 发明专利

JPS60143283A SOLENOID OPERATED SELECTOR VALVE 失效
公开(公告)号：JPS60143283A
公开(公告)日：1985-07-29
申请号：JP24978583
申请日：1983-12-28
申请人： NIPPON DENSO CO , TOYOTA MOTOR CO LTD
发明人： TSURU NAOHIKO , NOMURA YOSHIHISA
IPC分类号： F16K31/06 , B60T8/36
摘要： PURPOSE:To separately displace two movable cores in two stages, by providing both a magnetic reluctance means and a bypass means, which enables magnetic flux to bypass the magnetic reluctance means, in a magnetic circuir further allowing a predetermined quantity of magnetic flux to flow in the bypass means. CONSTITUTION:A main unit member 6 provides a throttle part 76, decreasing the sectinal area of a magnetic path for magnetic flux to flow, so as to enable a predetermined quantity of magnetic flux to flow by saturating the magnetic flux flowing even when an electric current supplied to a solenoid coil 2 is increased to a level above the fixed value. Further the main unit member provides an air gap 80 as a magnetic reluctance means between the internal peripheral surface of a protrusive part 78 and the peripheral surface of a movable core 58. This air gap 80 is formed considerably larger than the gap between a movable core 42 and its cylindrical part 10.

7. 发明专利

JPS60132184A SOLENOID VALVE FOR ANTI-SKID CONTROL 失效
公开(公告)号：JPS60132184A
公开(公告)日：1985-07-15
申请号：JP24116283
申请日：1983-12-21
申请人： NIPPON DENSO CO , TOYOTA MOTOR CO LTD
发明人： TSURU NAOHIKO , NOMURA YOSHIHISA
IPC分类号： B60T8/48 , B60T8/36 , B60T8/38 , F16K31/06
摘要： PURPOSE:To prevent the scuff of a cup in a master cylinder by setting the timing of the actuation of a throttle disposed in a passage connecting the master cylinder to a wheel cylinder to such a moment subsequent to depressing a brake pedal. CONSTITUTION:When a brake pedal 146 is depressed, a control unit 140 maintains a control signal S at low level at the moment when the brake takes effect. A hydraulic pressure control valve 144 is situated on the spring side, and the brake fluid from the master cylinder 108 can apply both left and right brakes via a switch valve 142 and the hydraulic pressure control valve 144. In this manner, the brake fluid does not passes through a throttle 118, and an abrupt pressure increase inside the master cylinder 108 is prevented, and as a result, there will be no scuff of a cup.

8. 发明专利

JPS6088669A LIQUID PRESSURE CONTROL DEVICE FOR ANTI-SKID DEVICE 失效
公开(公告)号：JPS6088669A
公开(公告)日：1985-05-18
申请号：JP19664083
申请日：1983-10-20
申请人： NIPPON DENSO CO , TOYOTA MOTOR CO LTD
发明人： OOTSUKI HIROMI , MATSUURA RIYOUICHI , FUJINAMI HIROSHI , HORI SHINICHI , NOMURA YOSHIHISA , OKA HIROYUKI
IPC分类号： B60T8/48 , B60T8/1761 , B60T8/42 , B60T8/46 , B60T11/28
摘要： PURPOSE:To prevent a pedal from being affected with kick-back upon decreasing of pressure, by cutting off, under the reduced pressure condition of a liquid pressure control valve, a liquid pressure supply pipe line for a master cylinder and a return pipe line connected to a liquid pressure pump, and by accumulating liquid pressure in an accumulator disposed in the return pipe line. CONSTITUTION:Upon braking when the braking pressure increases and the front wheels W1, W2 are decelerated, exceeding a predetermined deceleration, a control device 94 issues control signals S1, S2 to change over liquid pressure control valves 34, 84 to the right side position. Therefore, pipe lines 32 and 36, 82 and 86 are respectively cut off, and pipe lines 36 and 46, 86 and 90 are respectively communicated together so that braking liquid in wheel cylinders 20, 22 flows into a reservoir 44 so that pressure reduction is effected. When either one of the control signals S1, S2 reaches to its high level, the liquid pressure pump 48 is started to operate, and therefore, discharged pressure from the pump 48 is accumulated into an accumulator 54, and as well is also led into a selector valve 30. Therefore, the selector valve 30 is changed over so that pipe lines 52, 32 are communicated together but pipe lines 26, 32 are cut off. Accordingly no kickback is affected to a brake pedal 16.

9. 发明专利

JPS6033158A ANTISKID BRAKING DEVICE FOR VEHICLE 失效
公开(公告)号：JPS6033158A
公开(公告)日：1985-02-20
申请号：JP14039183
申请日：1983-07-29
申请人： TOYOTA MOTOR CO LTD , NIPPON DENSO CO
发明人： OKA HIROYUKI , NOMURA YOSHIHISA , OOTSUKI HIROMI
IPC分类号： B60T8/48 , B60T8/50
摘要： PURPOSE:To perform hydraulic pressure control of a brake fluid in optimum conditions, by installing a throttle in series with a directional selector valve for skid control, and also installing a normally opened valve, which closes in time of controm starting for the selector valve, in position in parallel with the throttle. CONSTITUTION:When a brake pedal 12 is stepped on, a brake fluid in a master cylinder 10 is fed ample enough to a wheel cylinder 32 by way of an on-off valve 24 and a solenoid directional selector valve 28, thus braking takes place. When a skid occurs, a microcomputer 64 selects the directional selector valve 28 to each of second and third positions according to the skid extent and closes the wheel cylinder 32 or interconnects it to a reservoir 48. Simultaneously the microcomputer 64 selects the on-off valve 24 to a closing position and keeps it in this position. With this constitution, in time of antiskid controlling, in the case where the directional selector valve 28 is selected in order to repressurize the wheel cylinder 32, the brake fluid in the master cylinder 10 is fed to the wheel cylinder 32 via a throttle 34 so that a rise in hydraulic pressure slowly takes place.

10. 发明专利

JPH0626945B2 失效
公开(公告)号：JPH0626945B2
公开(公告)日：1994-04-13
申请号：JP22853784
申请日：1984-10-30
申请人： TOYOTA MOTOR CO LTD
发明人： NAKAMURA KAZUMASA , KOBAYASHI IKUYA , NOGAMI TAKAHIRO , SHIRAI AKIRA , OOHASHI KAORU , NOMURA YOSHIHISA
IPC分类号： B60K28/16 , B60T8/175 , B60T8/176 , B60T8/1761 , B60T8/32 , B60T8/34 , B60T8/48 , B60W10/00 , B60W10/04 , B60W10/06 , B60W10/18 , B60W10/188 , F02D29/02 , B60K41/20 , B60T8/58

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