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1. 发明专利

DE3924918A1 未知
公开(公告)号：DE3924918A1
公开(公告)日：1990-02-01
申请号：DE3924918
申请日：1989-07-27
申请人： NIPPON DENSO CO
发明人： KOZAKI TETSUJI , ISHIKAWA HIROSHI , YASUI HIDEAKI , SHIMAMOTO MAMORU , HIBINO KATSUHIKO , SUZUKI MOTOSHI
IPC分类号： B60G17/018 , B60G17/019 , B60G21/055 , G05D1/08
摘要： A position control device includes a fluid-operated directional control valve for controlling the position of the piston of a cylinder assembly under fluid pressure in response to a control signal from an electronic controller. The position of the piston is predicted based on the control signal. A position detector detects when the piston has actually reached a predetermined position. When it is detected that the piston has actually reached the predetermined position, the predicted position of the piston is corrected. The electronic controller applies a control signal to the directional control valve so that the predicted position as corrected will be equalized to a target position for the piston. The predetermined position is a substantially intermediate position of the stroke of the piston. The directional control valve comprises a solenoid-controlled valve for controlling the flow rate of the fluid depending on the magnitude of a current supplied to the solenoid-operated valve. The position of the piston is calculated based on the magnitude of the current and a period of time during which the current is supplied to the solenoid-operated valve. An automotive suspension system incorporating the position control device is also disclosed.

2. 发明专利

JPH071953A AIR-CONDITIONING DEVICE FOR VEHICLE 失效
公开(公告)号：JPH071953A
公开(公告)日：1995-01-06
申请号：JP14814993
申请日：1993-06-18
申请人： NIPPON DENSO CO
发明人： SUZUKI TAKAHISA , ISAJI AKIRA , ISHIKAWA HIROSHI , IRITANI KUNIO
IPC分类号： B60H1/00 , B60H1/22 , B60H1/32 , B60H3/00
摘要： PURPOSE:To prevent the reduction in the heating capacity during the warming-up control at the time of heating operation mode at a very low temperature, while avoiding the negative pressure operation of a compressor. CONSTITUTION:During the warming-up control at the time of heating operation mode for heating the inside of a vehicle room, by stopping the operation of an indoor evaporator 5 and heating the air passing through an indoor condenser 6, the rotating speed of an electric motor 45 of a compressor 32 is controlled so as to bring the blowing-out temperature at the outlet of the indoor condenser 6 close to a target blowing-out temperature. At that time, by increasing the rotating speed of the electric motor 45 of the compressor 32, even if the intake pressure of the compressor 32 decreases below 0MPa to cause the compressor to enter negative pressure operation, the negative pressure operation of the compressor 32 can be avoided by changing over to the dehumidifying heating operation mode in which even the indoor evaporator 5 can be operated as an evaporator.

3. 发明专利

JPH06253401A LEAKAGE DETECTOR FOR ELECTRIC MOTOR VEHICLE 失效
公开(公告)号：JPH06253401A
公开(公告)日：1994-09-09
申请号：JP4147693
申请日：1993-03-02
申请人： NIPPON DENSO CO
发明人： ISHIKAWA HIROSHI , IRITANI KUNIO , SUZUKI TAKAHISA , ISAJI AKIRA
IPC分类号： B60L1/00 , B60L3/00
摘要： PURPOSE:To provide a leakage detector for an electric motor vehicle in which it is possible to detect on which side a leakage in a high voltage circuit has occured on a traveling unit side or an electric unit side except the travel unit side. CONSTITUTION:A controller 4 has power cut-off means for cutting OFF power to an air conditioning unit 8 when a leakage signal (I1 not equal to I2) output from a leakage signal output circuit 3 is received, leakage signal presence/absence deciding means for deciding presence/absence of the signal after supply of power to the unit 8 is shut OFF, first and second leakage unit deciding means for outputting energiztion signal to alarm lamps 5, 6 based on a decision result of the presence/absence deciding means.

4. 发明专利

JPH06156037A CONTROL GAIN ADJUSTING DEVICE FOR SUSPENSION 失效
公开(公告)号：JPH06156037A
公开(公告)日：1994-06-03
申请号：JP31183392
申请日：1992-11-20
申请人： NIPPON DENSO CO , TOYOTA CENTRAL RES & DEV
发明人： DOI SHUNICHI , ISHIGURO RIKUO , TAKEI KAZUTAKA , TAKEDA MASAYOSHI , NAGAI TAKAYUKI , ISHIKAWA HIROSHI
IPC分类号： B60G17/015
摘要： PURPOSE:To provide a suspension control gain adjusting device having the capability of substantially improving crew's riding comfort by accurately evaluating a vibration related to the crew's physical feeling, and optimally controlling the characteristics of a suspension in line with an evaluation criterion on the basis of the crew's feeling. CONSTITUTION:This adjusting device comprises an evaluation value computing means J for calculating at least two types of a state evaluation value Ji on the basis of a signal from a sensor G for detecting the quantity of vibration state due to a travel, an inclusion ratio setting means N for setting the inclusion ratio of an evaluation value as the evaluation basis of crew's organic function, and a gain setting means E for calculating a state judgement value H from a momentary changing total evaluation value, on the basis of the value Ji and the inclusion value ratio, and adjusting a suspension control gain outside the predetermined threshold value Hopt.

5. 发明专利

JPH06147963A GROUND CONTACT LOAD ESTIMATING DEVICE, LONGITUDINAL ACCELERATION CALCULATING DEVICE, AND TRANSVERSE ACCELERATION CALCULATING DEVICE 失效
公开(公告)号：JPH06147963A
公开(公告)日：1994-05-27
申请号：JP29728892
申请日：1992-11-06
申请人： NIPPON DENSO CO
发明人： YOKOYAMA TAKAHISA , KAMIYA MASAHIKO , NAKAMURA SHIGEFUMI , ISHIKAWA HIROSHI
IPC分类号： G01G19/02 , B60G17/015 , B60G17/019 , B60G17/0195 , G01L5/00 , G01P15/00
摘要： PURPOSE:To estimate the ground contact load of a vehicle and calculate the longitudinal and transverse accelerations of the vehicle by providing a detecting means which detects one among the relative displacement, relative velocity, and relative acceleration between the sprung and unsprung states of the vehicle, ground contact load calculating means which calculates the ground contact load of each wheel of the vehicle based on the detecting value of the detecting means. CONSTITUTION:The ground contact load F of each wheel of a vehicle can be calculated from F=-M1.d Y-(M1+M2)/M2(C.dY+K2.Y) (where, the M1 and M2, K2, and C respectively represent the sprung and unsprung loads, the spring constant of the suspension spring, and damping coefficient of the shock absorber of the wheel) by using the relative displacement Y, relative velocity dY, and relative acceleration d Y between the sprung and unsprung states of the vehicle detected by means of a height sensor, piezoelectric sensor, etc. The M1, M2, and K2 are almost constant and the C can be estimated when the dY is decided. In addition, a device which can calculate the longitudinal acceleration of the vehicle based on the difference in ground contact load between the front and rear wheels of the vehicle by using the estimated ground contact load F and another device which can calculate the transverse velocity based on the difference in ground contact load between the left and right wheels of the vehicle are obtained.

6. 发明专利

JPH06141958A CAR CONTROL DEVICE 失效
公开(公告)号：JPH06141958A
公开(公告)日：1994-05-24
申请号：JP30091992
申请日：1992-11-11
申请人： NIPPON DENSO CO , TOYOTA CENTRAL RES & DEV
发明人： ISHIKAWA HIROSHI , TAKEDA MASAYOSHI , NAGAI TAKAYUKI , DOI SHUNICHI , ISHIGURO RIKUO , TAKEI KAZUTAKA
IPC分类号： A44B11/25 , A47C31/12 , B60G17/015 , B60R22/12
摘要： PURPOSE:To provide a car control device which can control the comfort in sitting in a car cabin by directly sensing the behavior of a driver or passenger. CONSTITUTION:In a seat belt 5 mounted on the body side and a seat belt buckle 4 installed on a seat back 3 and a seat bench 2 where the driver/passenger is seated, comfort sensors 6, 7 which are covered with a cloth constituting the seat belt 5 are accommodated inside the seat belt 5 in such a way as located on the seat belt 5. Accordingly car vibrations in the vertical direction and the direction fore and aft can be sensed as the sense of human being. If the condition of the comfort in sitting in the car cabin is changed on the basis of the signal given by the comfort sensors, a control to generate the comfort can be introduced where major stress is placed on the driver/passenger.

7. 发明专利

JPH0624261A SEAT DEVICE FOR AUTOMOBILE 失效
公开(公告)号：JPH0624261A
公开(公告)日：1994-02-01
申请号：JP17700192
申请日：1992-07-03
申请人： NIPPON DENSO CO
发明人： YASUI HIDEAKI , ISHIKAWA HIROSHI
IPC分类号： A47C7/14 , A47C7/46 , B60N2/22
摘要： PURPOSE:To provide a seat device for an automobile wherein a damping coefficient corresponding to a road surface condition is set so as to effectively improve riding comfortableness. CONSTITUTION:Air bags 15, 16 are respectively buried in a seat cushion 12 and a seat bag 13, of a seat 11. These air bags 15, 16 are connected to accumulators 21, 22 respectively through pipes 19, 20, and circulating air amounts between the bags and accumulators are controlled by valve mechanisms 23, 24, so as to variably set damping coefficients of the air bags 15, 16. The valve mechanisms 23, 24 are controlled corresponding to front wheel sprung acceleration by a control unit 25, so as to set the damping coefficient in accordance with a road surface condition.

8. 发明专利

JPH0349769B2 失效
公开(公告)号：JPH0349769B2
公开(公告)日：1991-07-30
申请号：JP1459884
申请日：1984-01-30
申请人： NIPPON DENSO CO
发明人： ISHIKAWA HIROSHI , MATSUI KAZUMA , KURAHASHI TAKASHI , AKATSUKA HIDEHIKO , YAMADA GENICHI
IPC分类号： B60R1/06 , B60R1/02 , B60R1/07 , G02B5/08 , G06T1/00

9. 发明专利

JPS63154869A VARIABLE CAPACITY COMPRESSOR 失效
公开(公告)号：JPS63154869A
公开(公告)日：1988-06-28
申请号：JP12413887
申请日：1987-05-20
申请人： NIPPON DENSO CO
发明人： ISHIKAWA HIROSHI , SHINKAI HIDETAKA
IPC分类号： F04B27/14 , F04B27/10 , F04B49/00
摘要： PURPOSE:To enable direct detection of the degree of inclination of a wobble plate, by arranging many magnetic detection sensors while facing with a magnet arranged at the end of a slider. CONSTITUTION:A through bolt 202 is arranged in parallel with a shaft 115 in a cover housing 125. A slider 203 in coupled slidably on the through bolt 202 and coupled rotatably with a rolling board 103. A magnet 204 is arranged at the end portion of the slider 203 such that the center line connecting between N and S poles of said magnet 204 is aligned with the reciprocating direction of the slider 203. Furthermore, many magnetic detection sensors 206 are arranged at an open position of the reciprocal section of the slider 203 such that they will face directly with the magnet 204 through a predetermined gap. Consequently, the magnet 204 moves as the slider 203 reciprocates, and the reciprocal movement of the slider 203 can be detected directly by judging whether said motion of the magnet 204 is detected through a magnetic detection sensor 206.

10. 发明专利

JPS6374709A AIR-CONDITIONER FOR VEHICLE 失效
公开(公告)号：JPS6374709A
公开(公告)日：1988-04-05
申请号：JP22032086
申请日：1986-09-18
申请人： NIPPON DENSO CO
发明人： YASUDA AKIO , ISHIKAWA HIROSHI , FUKATSU YOSHIAKI , KURAHASHI TAKASHI , MATSUI KAZUMA
IPC分类号： B60H1/00
摘要： PURPOSE:To provide optimal air-conditioning environment for respective point of body of a crew, by detecting the temperature at respective points of the body of the crew and controlling the breezing air based on the detected results. CONSTITUTION:A controller 20 is provided with a setting temperature from a temperature setter 24 together with signals detected through an outer air temperature sensor 21, an indoor temperature sensor 22 and a sunshine sensor 23. Here, the body of a crew is partitioned into plural portions, then infrared ray radiated from the surface of respective portions is detected by contactless sensors 30a, 30b and the detected signal is fed as a two dimensional image to an image processor 31. The image sensor judges the position and the area of an object in the vehicle having specific temperature. Thereafter, the controller 20 controls the driving of respective actuators 6, 9, 11 for regulating the breezing air. Consequently, optimal air-conditioning environment can be provided for respective points of the body of the crew.

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