WO1988002329A1 - A method of redistributing a certain portion of the mass of a vehicle - Google Patents

A method of redistributing a certain portion of the mass of a vehicle Download PDF

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Publication number
WO1988002329A1
WO1988002329A1 PCT/SE1987/000428 SE8700428W WO8802329A1 WO 1988002329 A1 WO1988002329 A1 WO 1988002329A1 SE 8700428 W SE8700428 W SE 8700428W WO 8802329 A1 WO8802329 A1 WO 8802329A1
Authority
WO
WIPO (PCT)
Prior art keywords
vehicle
mass
wheel
redistributing
towards
Prior art date
Application number
PCT/SE1987/000428
Other languages
French (fr)
Inventor
Jan Kral
Original Assignee
Jan Kral
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Jan Kral filed Critical Jan Kral
Publication of WO1988002329A1 publication Critical patent/WO1988002329A1/en

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62D—MOTOR VEHICLES; TRAILERS
    • B62D9/00—Steering deflectable wheels not otherwise provided for
    • B62D9/02—Steering deflectable wheels not otherwise provided for combined with means for inwardly inclining vehicle body on bends
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G21/00—Interconnection systems for two or more resiliently-suspended wheels, e.g. for stabilising a vehicle body with respect to acceleration, deceleration or centrifugal forces
    • B60G21/007—Interconnection systems for two or more resiliently-suspended wheels, e.g. for stabilising a vehicle body with respect to acceleration, deceleration or centrifugal forces means for adjusting the wheel inclination
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62D—MOTOR VEHICLES; TRAILERS
    • B62D37/00—Stabilising vehicle bodies without controlling suspension arrangements
    • B62D37/04—Stabilising vehicle bodies without controlling suspension arrangements by means of movable masses

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Tires In General (AREA)
  • Vehicle Body Suspensions (AREA)

Abstract

A method of improving the balance of a vehicle and friction in a lateral direction, with changes in the direction of forward movement. The negative effect of the centrifugal force on balance and friction is counteracted by changed wheel angles from the axle point (2, 1) in a lateral direction towards the outer extremity of the curve, longitudinally in the changed forward direction, made possible by redistribution of part of the vehicle mass (weight) (3, 5) in a direction towards the inner extremity of the curve.

Description

A Method of Redistributing a Certain Portion of the Mass of a Vehicle.
Background Prior Art
The problem presented by friction with changes in the direction of for¬ ward movement of a vehicle, influenced by the occurrent centrifugal force, is well known within the automotive vehicle field. Earlier known methods for improving these properties have included lower¬ ing the centre of mass, changing the width of the tyres and tyre pattern in conjunction with stiffening the vehicle suspension.
Summary of the Invention
The object of the present invention is to improve the road holding ability of a vehicle when negotiating curves at different vehicle speeds. Another object is to enable, e.g., the weight of the engine to be shifted laterally with the aid of a roll-back rail guided and fixed by hydraulic piston-cylinder devices which are controlled au¬ tomatically via a computer device or mechanically via steering wheel movement. By displacing the centre of mass towards the inner extremi¬ ty of the turning radius there is obtained between the wheel axle points on the vehicle the requisite oblique loading of the vehicle which, together with the change in wheel angle (the road-surface contact angle), improves the friction towards the outer extremity of the turning radius, therewith reducing the negative effect of centri¬ fugal force in the lateral direction.
Brief Description of the Drawings
A principle drawing concerning the relationship between wheel angles and loading points. Loading point axle centre (8, 9). Changed wheel angles and displaced contact point towards the vehicle supporting sur¬ face (1, 2). Displacement of the centre of mass (3, 4). Redistributed oblique load (5, 7).
Technical Field
The invention relates to a method of redistributing the weight of a ve¬ hicle and the load acting laterally thereon, so that the wheel angle re- lative to the vehicle is better able to accomodate the occurrent late¬ ral load on the vehicle. This is achieved by redistributing a given part of the vehicle mass (part of' the uehicle) (3) .in a manner to displace the centre of mass between the sides of the vehicle towards the inner extremity (4) of the turning curve, such as to change the pressure on the centre of respective wheel axles between the two si¬ des (8, 9) of the vehicle, and such as to change the wheel angle (8, 2) laterally from and parallel with said axle point in the for¬ ward direction of the vehicle, and therewith move the tyre surface in contact with the road surface, the loading point, in relation to the wheel axle point towards the outer extremity (1, 2) of the radius of the turning curve.
This method results in a redistribution of the load between the two sides of the vehicle'such as -to engender an obliquely acting load which is advantageously accommodated by the change in wheel angle. This affords high friction, improved balance, and improved road hold¬ ing performance of the vehicle.
This adjustment of the mass (3, 4) and change in wheel angle (1, 2) can be controlled or effected by means of a levelling device, a gyro or some other device which is responsive mechanically or automatical¬ ly to--vehicle -speed-SQΓ
Figure imgf000004_0001
tnovament, .with the aid f .mecha¬ nical or hydraulic guide means.
Thus, when practicing the inventive method two co-acting measures, either in combination or each per se, influence the stability of the vehicle when the forward direction thereof is changed.

Claims

Claim
A method of redistributing a given part of the weight (mass) (3) of a vehicle such as to shift the centre of mass towards the inner ex¬ tremity (4) of a vehicle turning radius between two or more wheel- axle points (8, 9) located preferably on the two sides of the ve¬ hicle, and of transferring the redistributed load (5, 7) in rela¬ tion to the wheel-axle points (8, 9) via the change in wheel angle (1, 2) towards the outer extremity of the turning radius, such as to obtain an ideal abutment or contact angle in relation to the change in weight distribution in the direction of forward movement of the vehicle.
PCT/SE1987/000428 1986-09-25 1987-09-23 A method of redistributing a certain portion of the mass of a vehicle WO1988002329A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SE8604050A SE8604050D0 (en) 1986-09-25 1986-09-25 WHEEL ANGLE CONTROLLER AND LOAD DISTRIBUTOR
SE8604050-8 1986-09-25

Publications (1)

Publication Number Publication Date
WO1988002329A1 true WO1988002329A1 (en) 1988-04-07

Family

ID=20365698

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/SE1987/000428 WO1988002329A1 (en) 1986-09-25 1987-09-23 A method of redistributing a certain portion of the mass of a vehicle

Country Status (2)

Country Link
SE (1) SE8604050D0 (en)
WO (1) WO1988002329A1 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2530182A (en) * 2015-02-08 2016-03-16 John Vickers English Heavy vehicle power steering gear correction system
WO2019116193A1 (en) * 2017-12-11 2019-06-20 Jacques Tranchero Crane with wheels having variable camber angle
CN110239363A (en) * 2019-06-25 2019-09-17 覃子飞 Electric car dynamic stabilization system

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2243181A (en) * 1939-10-04 1941-05-27 Altemus James Dobson Tiltable and independently rotatable dual wheels for trucks, etc.
DE1007190B (en) * 1954-07-19 1957-04-25 Daimler Benz Ag Device for tilting the superstructure of a motor vehicle towards the inside of the curve
CH368063A (en) * 1961-05-02 1963-03-15 Zimmermann Gaston Method for stabilizing a motor vehicle and device for implementing this method
EP0001009A1 (en) * 1977-08-22 1979-03-07 Spring Hill Laboratories, Inc. A vehicle suspension system

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2243181A (en) * 1939-10-04 1941-05-27 Altemus James Dobson Tiltable and independently rotatable dual wheels for trucks, etc.
DE1007190B (en) * 1954-07-19 1957-04-25 Daimler Benz Ag Device for tilting the superstructure of a motor vehicle towards the inside of the curve
CH368063A (en) * 1961-05-02 1963-03-15 Zimmermann Gaston Method for stabilizing a motor vehicle and device for implementing this method
EP0001009A1 (en) * 1977-08-22 1979-03-07 Spring Hill Laboratories, Inc. A vehicle suspension system

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2530182A (en) * 2015-02-08 2016-03-16 John Vickers English Heavy vehicle power steering gear correction system
GB2530182B (en) * 2015-02-08 2020-08-05 Vickers English John Device, system, power steering system and method for heavy vehicle power steering compensation
WO2019116193A1 (en) * 2017-12-11 2019-06-20 Jacques Tranchero Crane with wheels having variable camber angle
US11524720B2 (en) 2017-12-11 2022-12-13 Jacques Tranchero Crane with wheels having variable camber angle
CN110239363A (en) * 2019-06-25 2019-09-17 覃子飞 Electric car dynamic stabilization system

Also Published As

Publication number Publication date
SE8604050D0 (en) 1986-09-25

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