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1. 发明专利

JPS60157536A SHOCK ABSORBER ADJUSTING ATTENUATION FORCE STEP BY STEP 失效
公开(公告)号：JPS60157536A
公开(公告)日：1985-08-17
申请号：JP1263584
申请日：1984-01-26
申请人： AISIN SEIKI , TOYOTA MOTOR CO LTD
发明人： IDA MASAHIRO , KUWANA KAZUTAKA
IPC分类号： F16F9/46
摘要： PURPOSE:To enable to set attenuation force at a plurality of steps by a small device, by a method wherein an actuator assembly for adjusting attenuation force step by step is built in a shock absorber piston rod which controlls electrification to its coil. CONSTITUTION:The inside of an outer shell 21 of a shock absorber is provided with a built-in inner cylinder 25, and the cylinder 25 is so constituted that it is made communicatable with a chamber (c) between the shell 21 and the cylinder 25 through a base valve assembly A provided on the bottom of the cylinder 25. A piston rod 20 extending outward by piercing through a top wall of the outer shell 21 is inserted into the inner cylinder 25 and a valve assembly B including a piston 47 and a piston valve 43 is fixed to an inner end part of the piston rod 20. Then the inside of the piston rod 20 is provided with a built-in actuator assembly D for adjusting attenuation force step by step, which is constituted so as to enable to open or close bypass paths 71, 74 by a plunger 62 to be attracted through excitation of a coil 65.

2. 发明专利

JPS60140117A ANGLE SENSOR 失效
公开(公告)号：JPS60140117A
公开(公告)日：1985-07-25
申请号：JP25114683
申请日：1983-12-27
申请人： AISIN SEIKI , TOYOTA MOTOR CO LTD
发明人： KADOOKA TAKAO , KUWANA KAZUTAKA , NABEYA TOSHIKAZU
IPC分类号： G01D5/34 , G01D5/347
摘要： PURPOSE:To enhance the durability of an angle sensor, in the angle sensor capable of linearily detecting a rotary angle, by bringing a detection part to a non- contact state. CONSTITUTION:A rotary shaft 20 pierces the eccentric hole 11 of a base member 10 and a light blocking plate 30 is fixed by the projection 21 provided to the leading end of the rotary shaft 20. The space between the base member 10 and a case member 60 is blocked from the open air by an O-ring 24, an oil seal 23, a bush 41 and an O-ring 61 and a printed circuit board 50 is fixed to the base member 10. A semiconductor position detection element being a light receiving means is secured to the printed circuit board 50 and a light emitting diode being a light emitting element is fixed to a photointerruptor case 54 so as to be opposed to sid detection element. The light blocking plate has a fan shape and a spirally cut slit 31 is provided thereto. By rotating the light blocking plate 30 corresponding to the rotation of the rotary shaft 20, the slit 31 corresponding to the part opposed to the light emitting element is moved to the diameter direction. Therefore, the position of a light spot moves to the diameter direction corresponding to the rotation of the light blocking plate 30.

3. 发明专利

JPS60143238A SHOCK ABSORBER FOR ADJUSTING DAMPING FORCE 失效
公开(公告)号：JPS60143238A
公开(公告)日：1985-07-29
申请号：JP25194683
申请日：1983-12-28
申请人： AISIN SEIKI , TOYOTA MOTOR CO LTD
发明人： IDA MASAHIRO , KUWANA KAZUTAKA
IPC分类号： F16F9/46
摘要： PURPOSE:To improve the responsive property of a shock absorber while reducing malfunction and heat loss for preventing temperature rise by pivoting a rotary valve with a stepping motor attached to the interior of a piston rod for adjusting a damping force. CONSTITUTION:An actuator assembly D for adjusting a damping force is fixedly secured to the lower end of a hollow piston rod 20. The assembly D has a stepping motor 62, a gear box 63 and a rotary valve 65. By pivoting the rotary valve 65 through a reduction gear 67 in the gear box 63 with pivoting the stepping motor 62 is adjusted the opening of an orifice 70 in the rotary valve 65 disposed between oil paths 72, 74. Since the stepping motor 62 has small moment of inertia and high responsive speed with rotational angle accurately proportional to pulse number, malfunction is few.

4. 发明专利

JPS60143237A SHOCK ABSORBER FOR ADJUSTING DAMPING FORCE 失效
公开(公告)号：JPS60143237A
公开(公告)日：1985-07-29
申请号：JP25194583
申请日：1983-12-28
申请人： AISIN SEIKI , TOYOTA MOTOR CO LTD
发明人： IDA MASAHIRO , KUWANA KAZUTAKA
IPC分类号： F16F9/46
摘要： PURPOSE:To provide a compact actuator with improved responsive property by moving a piston valve axially of a piston rod with an electromagnetic force of a solenoid attached in the piston rod for adjusting a damping force. CONSTITUTION:An actuator assembly D for adjusting a damping force is secured fixedly to the lower end of a hollow piston rod 20. The assembly D has a valve body 60, a coil 65 wound around a bobbin 64 and a plunger 62. Oil paths 71, 74 are provided in the valve body 60, and between these paths 71, 74 is interposed the plunger 62. When current is supplied to the coil 65, the plunger 62 is attracted to interrupt communication between the oil paths 71, 74 for adjusting a damping force. Thus, the plunger 62 moving parallel to the axis of the piston rod 20 is driven to directly open and close a valve for bypassing with quick response.

5. 发明专利

JPS58110313A CAR HEIGHT ADJUSTING DEVICE 失效
公开(公告)号：JPS58110313A
公开(公告)日：1983-06-30
申请号：JP20843981
申请日：1981-12-23
申请人： AISIN SEIKI , TOYOTA MOTOR CO LTD
发明人： KONDOU KOUICHI , KUWANA KAZUTAKA , UEDA MASAHIRO , NONOYAMA SEIJI , FUSHIMI TAKEHIKO , SHIRATORI HARUNORI
IPC分类号： B60G17/00 , B60G17/015
摘要： PURPOSE:To use a motor with a small starting torque for driving a compressor by opening a discharge valve temporarily when starting the air compressor feeding air to a shock absorber and by providing an orifice for suppressing the air flow during this time. CONSTITUTION:If the car height is made low from medium and is kept low, the output of an AND gate A2 is changed from a level L to a car height raise command level H at the time when eight clock pulses (i) have been counted since the car height was transferred to low, a motor activating relay 403 is closed, a motor 401 is rotated to drive an air compressor, and the air pressure in an air chamber of a suspension unit 500 is increased to raise the car height. In addition, MM1 is triggered by the output L from the AND gate A2, and its output is kept at a high level H for a predetermined time, thus keeping the output of an OR gate OR2 at H and opening a relief valve 300 during that time. After the predetermined time has elapsed, a vibrator MM1 is made L and the OR gate OR2 is made L, closing the valve 300.

6. 发明专利

JPS5836712A GROUND CLEARANCE ADJUSTER 失效
公开(公告)号：JPS5836712A
公开(公告)日：1983-03-03
申请号：JP13530981
申请日：1981-08-28
申请人： AISIN SEIKI , TOYOTA MOTOR CO LTD
发明人： KUWANA KAZUTAKA , IDA MASAHIRO , NOGAMI TAKAHIRO , OOHASHI KAORU
IPC分类号： B60G17/00 , B60G17/015
摘要： PURPOSE:To prevent sway of a car body due to ground clearance adjustment and enable conduct of said adjustment during boarding and alighting by stopping by stopping said adjustment when car speed is within the predetermined range and acceleration or deceleration is above the predetermined value. CONSTITUTION:Compressed air is supplied from a compressor 5 to suspensions 1-4 through valves 7, 8, 10 to adjust ground clearance. Signals from potentiometers 12-15 and car speed signals from a phototransistor 30 are inputted to a ground clearance controller 20. When a car speed is within the predetermined range (about 3-10km/h) and acceleration or deceleration speed exceeds the predetermined value, ground clearance adjustment is stopped. Accordingly, sway of a car body due to acceleration or deceleration may be eliminated and the ground clearance adjustment may be operated at boarding and alighting during stoppage of a car.

7. 发明专利

JPS57205210A CONTROLLING DEVICE OF HEIGHT OF VEHICLE 失效
公开(公告)号：JPS57205210A
公开(公告)日：1982-12-16
申请号：JP8991881
申请日：1981-06-11
申请人： AISIN SEIKI , TOYOTA MOTOR CO LTD
发明人： KUWANA KAZUTAKA , IDA MASAHIRO , NOGAMI TAKAHIRO , OOHASHI KAORU
IPC分类号： B60G17/00 , B60G17/015 , B60G17/052
摘要： PURPOSE:To contrive to improve the raising speed of a vehicle by a method wherein a check valve, which cuts off the air flow from an air chamber to an accumulator but allows to flow the air flow from the accumulator to the air chamber, is provided in an air passage connecting the air chamber of a suspension system and the accumulator. CONSTITUTION:Detection signals of height detectors 101 and 102 are inputted to a one chip microcomputer MPU and, after being processed, inputted to a control driving system 200. When a compressor 203 is driven under the condition that a solenoid valve SOL2 and the check valve SOL-CE are open, the accumulator 330 is filled. On the other hand, when the compressor 203 is driven under the condition that both the solenoid valves SOL1 and SOL2 are open, air is supplied to the suspension system 400 and when the condition that the air pressure in the accumulator 330 is high is moreover added to the condition just mentioned above, air is supplied from both the accumulator 330 and the air compressor 203 to the suspension system 400, resulting in performing high speed car body raising. When the air pressure in the accumulator 330 lowers, the check valve SOL-CE cuts off the connection between the accumulator 330 and the solenoid valve SOL2, resulting in eliminating the lowering of the car body raising speed caused by the accumulator 330 turned to be encumbrance.

8. 发明专利

JPS57144114A VEHICLE HEIGHT ADJUSTER 失效
公开(公告)号：JPS57144114A
公开(公告)日：1982-09-06
申请号：JP3026881
申请日：1981-03-03
申请人： AISIN SEIKI , TOYOTA MOTOR CO LTD
发明人： KUWANA KAZUTAKA , SATOU HIROKI , NARAMOTO YUUICHI
IPC分类号： B60G17/00 , B60G17/015 , B60G17/04
摘要： PURPOSE:To prevent the fall in the speed of the increase in the height of a vehicle, by providing a solenoid valve and a control circuit to disconnect a pressure accumulator from the air chamber of a suspension unit and the discharge port of an air compressor when the pressure of the accumulator is lower than a prescribed level at the time of energizing for increasing the vehicle height. CONSTITUTION:When a compressor 203 is driven, a solenoid valve 310 is opened to store pressure in an accumulator 330. When a solenoid valve 330 is opened, a suspension unit 400 is operated to increase the height of a vehicle. The pressure in the accumulator 330 is found out by a pressure detection switch 340. When the pressure is higher than a prescribed level, the switch 340 is off. When the pressure is not higher than the level, the switch is on. When the pressure is higher than the prescribed level, a timing unit 140 has a high output level. When the pressure is not higher than the prescribed level, the timing unit 140 has a low output level. when the pressure switch 340 is on and the timing circuit 140 has the low output level at the time of the opening of the solenoid valve 310 by a vehicle height increasing signal generated by a counter CO2, the output level (i) of a gate AN1 becomes low to close the solenoid valve 310 to supply compressed air 203 only to the suspension unit 400. For that reason, the speed of the increase in the height of the vehicle is prevented from falling.

9. 发明专利

JPS57144113A VEHICLE HEIGHT ADJUSTER 失效
公开(公告)号：JPS57144113A
公开(公告)日：1982-09-06
申请号：JP3026981
申请日：1981-03-03
申请人： AISIN SEIKI , TOYOTA MOTOR CO LTD
发明人： KUWANA KAZUTAKA , UEDA MASAHIRO , NONOYAMA SEIJI
IPC分类号： B60G17/00 , B60G17/015
摘要： PURPOSE:To stabilize the height of a moving vehicle and quickly adjust the its height at the time of getting in and out, by using the output signals of a vehicle height detector and a movement detector to energize the suspension of the vehicle for a relatively-short prolonged time during the stoppage of the vehicle or for a relatively-long prolonged time during the movement of the vehicle. CONSTITUTION:Electric power V is applied, an oscillator 211 generates pulses (f) and a counter CO1 sends out pulses of double, eightfold and sixteen-fold periods from terminals Q0-Q3 and another counter CO2 counts the pulses from the terminal Q2. Until the counter CO2 has counted eight pulses, its terminal Q3 is kept at a low level so that a door switch 50 is closed after the application of the electric power V. When a flip-flop FF1 remains reset and the counter CO2 has not yet counted eight pulses before the starting of a vehicle, short-period pulses (h) are supplied to an energizing controller 220. After the counting of the eight pulses and the starting of the vehicle, long-period pulses (g) are supplied to the energizing controller 220. According to this constitution, the height of the vehicle at the time of getting in and out is quickly adjusted and the frequency of the adjustment of the vehicle height is reduced to stabilize the height.

10. 发明专利

JPS57138406A HEIGHT ADJUSTER FOR CAR 失效
公开(公告)号：JPS57138406A
公开(公告)日：1982-08-26
申请号：JP2103681
申请日：1981-02-16
申请人： AISIN SEIKI , TOYOTA MOTOR CO LTD
发明人： UEDA MASAHIRO , KUWANA KAZUTAKA , NONOYAMA SEIJI , KONDOU KOUICHI
IPC分类号： B60G17/00 , B60G17/015
摘要： PURPOSE:To enable the car-height to be adjusted automatically according to the condition of bad or flat road by constituting a suspension apparatus so as to permit transition to the high car-height side when the number of times in which the car-height detected by a photocell type height detector is outside a prescribed range is integrated and the integrated value is above a certain value. CONSTITUTION:The detection signal of each photosensor 101-103 of a height detector 100 is put into the car-height vibration detector 210 and the signal processor 220 of a car-height adjusting controller 200. In the car-height vibration detector 210, the continuous frequency in height variation is counted by counters CO4-CO6, and if the number of counts in a fixed time exceeds a prescribed value, the control signal D=H for high car-height is output into the signal processor 220, and in other cases, D=L is output. In the signal processor 220, the indicated height and the detected height are compared, and the energizing signal is output into an energizing controller 230, so as to change the detected car- height to the indicated car-height and thus a suspension apparatus 500 is controlled. Thus, the car-height can be adjusted automatically according to the condition of the bad or flat road.

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