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1. 发明专利

JPH09175214A DRIVING DEVICE FOR VEHICLE 失效
公开(公告)号：JPH09175214A
公开(公告)日：1997-07-08
申请号：JP32813796
申请日：1996-12-09
申请人： MAZDA MOTOR
发明人： WATANABE KENICHI , NISHIMURA EIJI
IPC分类号： B60K23/04 , F16D48/02 , F16D25/14
摘要： PROBLEM TO BE SOLVED: To fulfill both cornering requirement and stability requirement by providing a controlling means for controlling right and left wheel clutches by the signal from a steering angle detecting means such that it gives larger torque to a wheel positioned on an outer or an inner side than a wheel positioned on an inner or an outer side in the direction of cornering by the signal of a steering state detecting means. SOLUTION: A signal (j) for indicating if a vehicle is under the control of an ABS(anti-lock braking system) or not is input by an ABS controller 43 for controlling the operation of an ABS mounted in the vehicle and a controller 35 controls a cut off clutch 26 and right and left wheel clutches 27, 28 based on input signal (d) to (j). A large ratio of distribution of torque is given to the rear wheels 8, 9 until the vehicle is shifted to the stable steering state where a steering angle is constant and a larger distribution of torque is given to the outer rear wheel than to the inner rear wheel in the direction of steering, whereby a good cornering performance is obtained at the beginning of cornering of a vehicle.

2. 发明专利

JPH0568371B2 失效
公开(公告)号：JPH0568371B2
公开(公告)日：1993-09-28
申请号：JP26884884
申请日：1984-12-19
申请人： MAZDA MOTOR
发明人： WATANABE KENICHI , TANIGUCHI HARUYUKI
IPC分类号： B60K5/12 , F16F13/00 , F16F13/26

3. 发明专利

JPH03217335A DIFFERENTIAL LIMIT DEVICE FOR FOUR-WHEEL DRIVE CAR 失效
公开(公告)号：JPH03217335A
公开(公告)日：1991-09-25
申请号：JP1105890
申请日：1990-01-19
申请人： MAZDA MOTOR
发明人： WATANABE KENICHI , NISHIMURA EIJI , TOYAMA KAORU , NAGAOKA MITSURU , KAMEDA OSAMU
IPC分类号： B60K17/35 , B60K17/346 , B60K23/08
摘要： PURPOSE:To improve running stability by setting a differential limit amount characteristic, responding to a difference in the number of revolutions between front and rear wheels, according to the magnitude of the number of revolutions of the front and rear wheels, in a device which controls a differential limit means for limiting the differential function of a center differential device, according to a difference in the number of revolutions between the front and rear wheels. CONSTITUTION:In a four-wheel drive car output torque of a power train P is transmitted to a center differential 6 through gear trains 4 and 5 and distributed to respective propeller shafts 7 and 8 of front and rear wheels to output power. The center differential 6 is provided with a wet type clutch C, serving as a differential limit means, to limit a differential function according to a running condition, and driven and controlled by controlling an oil pressure in a space part 27, formed in a cylinder 24, by means of an oil pressure control valve 28. The oil pressure control valve 28 is controlled according to a difference in the number of revolutions between the front and rear wheels by means of a controller C1. In this case, the differential limit amount characteristic responding to the difference in the number of revolutions between the front and rear wheels are respectively set when the number of revolutions of the front wheel is higher and when the number of revolutions of the rear wheel is higher.

4. 发明专利

JPH01223012A SUSPENSION OF VEHICLE 失效
公开(公告)号：JPH01223012A
公开(公告)日：1989-09-06
申请号：JP4576788
申请日：1988-03-01
申请人： MAZDA MOTOR
发明人： WATANABE KENICHI , EDAHIRO TAKESHI , TANIGUCHI HARUYUKI
IPC分类号： B60G3/20 , B60G3/26 , B60G7/00 , B60G7/02 , B60G13/00 , B60G15/07
摘要： PURPOSE:To improve the comfortability during driving and prevent the variation in camber by dividing a wheel suspension member into two pieces, inserting one of the pieces via a resilient member into the holding sleeve formed at the other piece and joining the pieces with each other as they may are soft to react in the longitudinal direction of a vehicle and hard to react in the lateral direction thereof. CONSTITUTION:A knuckle 1 as a wheel suspending means is divided into upper and lower knuckle pieces 1A and 1B. The upper and the lower end part of each of the upper and lower knuckle pieces 1A and 1B are joined via ball joints 7 and 8 with the internal ends, placed in the direction of the width of a vehicle, of upper and lower suspension arms 2 and 3, respectively. The upper and the lower knuckle pieces 1 and 1B are respectively joined with each other via a joint means 14 using a resilient member. That is, a holding sleeve 21 is formed at the lower knuckle piece 1B and the upper knuckle piece 1A is inserted into the holding hole 22 of said sleeve 21 via a plurality of resilient members 23A and 23B. The resilient members 23A and 23B are set to make soft reaction in the longitudinal direction of a vehicle and make hard reaction in the lateral direction thereof.

5. 发明专利

JPH01197105A SUSPENSION DEVICE FOR VEHICLE 失效
公开(公告)号：JPH01197105A
公开(公告)日：1989-08-08
申请号：JP2096288
申请日：1988-01-31
申请人： MAZDA MOTOR
发明人： WATANABE KENICHI , EDAHIRO TAKESHI , TANIGUCHI HARUYUKI
IPC分类号： B60G3/20 , B60G7/00
摘要： PURPOSE:To make a steering wheel towed out and secure the running stability by dividing a wheel supporting member into halves, coupling them around an oscillating axis, and tilting the oscillating axis so that it becomes low toward the outside. CONSTITUTION:A knuckle 1 which supports a steering wheel 10 through a spindle 9 is divided into halves, i.e. an upper knuckle 1A and a lower knuckle 1B. On the other hand, respective inside ends of the upper and lower suspension arms 2 and 3 are coupled with a body 6 through respective elastic bushings 4 and 5. Respective outside ends of the upper and lower suspension arms 2 and 3 are also coupled with respective upper and lower ends of respective upper and lower knuckles 1A and 1B through respective ball joints 7 and 8. At this time, respective upper and lower knuckles 1A and 1B are mutually coupled above the spindle 9 through a plural number of ball joints 32 and 33. An oscillating axis beta which couples respective ball joints 32 and 33 is also tilted by a predetermined angle theta1 against the rotating center line alpha of the steering wheel 10.

6. 发明专利

JPH01186408A SUSPENSION DEVICE FOR VEHICLE 失效
公开(公告)号：JPH01186408A
公开(公告)日：1989-07-25
申请号：JP851988
申请日：1988-01-20
申请人： MAZDA MOTOR
发明人： WATANABE KENICHI , EDAHIRO TAKESHI , TANIGUCHI HARUYUKI
IPC分类号： B60G3/18 , B60G3/26 , B60G7/00
摘要： PURPOSE:To improve stability and riding comfort under braking of a vehicle by dividing a knucle supporting a steering wheel into two in an upper and a lower one while combining respective knuckles, the upper and the lower, so as to be soft in front and rear direction, at the same time, rigid in lateral direction. CONSTITUTION:A knuckle 1 is divided into upper and lower knuckles 1A, 1B, and respective outer end portions of an upper and a lower respective suspension arms 2, 3 in the lateral direction of a vehicle are connected to the upper and lower respective knuckles 1A, 1B via ball joints 7, 8 respectively. Again, a spindle 9 extending outward in lateral direction of the vehicle is projected on the upper knuckle 1A, and a steering wheel 10 is attached to the spindle 9 on making the same as the center freely rotatably. Still more, the upper and the lower respective knuckles 1A, 1B are combined together so as to be soft in front and rear direction, at the same time, rigid in lateral direction via a combining means 14 utilizing an elastic member. In this way, together with making braking stability of a vehicle improve, riding comfort under braking is improved.

7. 发明专利

JPH01101436A DETECTING DEVICE FOR ROAD SURFACE FRICTION COEFFICIENT 失效
公开(公告)号：JPH01101436A
公开(公告)日：1989-04-19
申请号：JP26045387
申请日：1987-10-15
申请人： MAZDA MOTOR
发明人： MIYOSHI AKIHIKO , WATANABE KENICHI , KAMIMURA SHOICHI
IPC分类号： G01N19/02 , G01M17/00 , G01M17/007
摘要： PURPOSE:To accurately detect a road surface friction coefficient and to suppress variation in arithmetic value as much as possible by performing arithmetic operation from the motion equation of a vehicle according to its driving state in consideration of even the dynamic characteristics, etc., and stopping the arithmetic operation at the prescribed condition. CONSTITUTION:When the vehicle turns, variables such as the stability factor of the vehicle stored in a storage means 31, and the lateral acceleration ay of the vehicle gravity center, front and rear wheel steering angles (steering wheel angles theta), and the vehicle speed V detected by a motion state detecting means 51, a steering state detecting means 37, and a vehicle speed detecting means 53 are found. A friction coefficient arithmetic means 39 calculated the road surface friction coefficient mu between the tires and road surface corresponding to the dynamic characteristics of the vehicle from an equation [where thetais the steering wheel angle determined by a front gear ratio R=(deltaF/theta) with a specific relation with the front wheel steering angle deltaF and (s) is a Laplacean] derived from the basic motion equation. Further, when the traveling state meets specific requirements, an arithmetic stopping means 40 stops the arithmetic operation.

8. 发明专利

JPS63269707A SUSPENSION FOR VEHICLE 失效
公开(公告)号：JPS63269707A
公开(公告)日：1988-11-08
申请号：JP10365287
申请日：1987-04-27
申请人： MAZDA MOTOR
发明人： TANIGUCHI HARUYUKI , EDAHIRO TAKESHI , WATANABE KENICHI
IPC分类号： B60G3/20 , B60G3/26
摘要： PURPOSE:To make a desired caster angle securable according to a driving state by constituting one side arm connecting point in a knuckle member to be displaceable in the longitudinal direction by means of a bump or a rebound of each wheel, in case of a double wishbone type. CONSTITUTION:If a wheel bumps or rebounds from a static load state of a vehicle, each of upper and lower arms 2 and 3 is rotated upward or downward with a body side rocker shaft as the center. And, the second assist link 10 connected to the upper arm 2 via a first assist link 6 is rotated upward or downward with an elastic bush 13 or the body side fulcrum as the center. At this time, a turning path of a fulcrum shaft 8 or a connecting point between the upper arm 2 and the first assist link 6 goes along a vertical line, whereas a turning path of an elastic bush 11 or a connecting point between both these assist links 6 and 10 describes a circular arc setting the body side fulcrum of the first assist link 6 down to the center. In consequence, a caster angle is gradually increased.

9. 发明专利

JPS63269703A SUSPENSION FOR VEHICLE 失效
公开(公告)号：JPS63269703A
公开(公告)日：1988-11-08
申请号：JP10364887
申请日：1987-04-27
申请人： MAZDA MOTOR
发明人： TANIGUCHI HARUYUKI , WATANABE KENICHI , EDAHIRO TAKESHI
IPC分类号： B60G3/20 , B60G3/26 , B60G7/00 , B60G7/02 , F16F13/28
摘要： PURPOSE:To increase the specified proportional relation on the momentary turning center of a wheel as well as to secure a sufficient anti-dive effect by feeding or exhausting oil to or from the elastic bush, installed in a body side support part, of a suspension arm, at the time of braking a vehicle. CONSTITUTION:If a car body is made to nose-dive by inertial force at time of braking, each of upper and lower arms 2 and 3 is rotated upward each centering on rocker shafts S1 and S2 at the body side. Accordingly, the piston rod 15b, connected to the lower arm 3, of a hydraulic cylinder 15 as an oil feed- exhaust device goes up in the cylinder body 15a. In consequence, oil is fed to each oil chamber of respective elastic bushes 6-9 interconnected to an upper oil chamber 15d of the cylinder body 15a, while oil is exhausted from each oil chamber of these elastic bushes 6-9 interconnected to a lower oil chamber 15e. With this constitution, the ratio of road level of the momentary turning center in the wheel to longitudinal length from a wheel grounding point is increased.

10. 发明专利

JPS63251316A SUSPENSION FOR VEHICLE 失效
公开(公告)号：JPS63251316A
公开(公告)日：1988-10-18
申请号：JP8568287
申请日：1987-04-09
申请人： MAZDA MOTOR
发明人： WATANABE KENICHI , SHIMOE HIROO , MIYOSHI AKIHIKO , KAMIMURA SHOICHI
IPC分类号： B60G17/00 , B60G17/015 , F16F9/50
摘要： PURPOSE:To make optimal control over a wide range by constructing a flow control valve with a high speed small flow control valve and a low speed large flow control valve arranged in parallel. CONSTITUTION:A changeover valve 36, an accumulator 38, a high speed small flow control valve 40 and a low speed large flow control valve 42 arranged in parallel each other are arranged in a working oil supply path 34 for a cylinder 2. A reservoir tank 32 is coupled to the low speed large flow control valve 42 so as to enable recirculation of the working oil. In such arrangement, a characteristic based on the throttle resistance of an orifice 12 and the elastic modulus of a gas spring 8 is exhibited when the flow control valves 40, 42 are closed. A control unit 50 controls the flow control valves 40, 42 and the changeover valve 36 in combination based on the inner pressure of the cylinder 2 inputted from pressure sensors 52, 62 and the oil pressure in the supply path 34. By such arrangement, suspension characteristic can be controlled optimally over a wide range.

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