Dr. Ing. H.c. F. Porsche Aktiengesellschaft

Matthias Dietz

Norbert Schote

Reinhard Kunert

Karl Sommerer

Robert Klosterhuber

George Wahl

Steffen Maurer

Achim Schulz

Norbert Stelter

Rainer Wuest

Thorsten Koch

Manfred Bantle

Lothar Witte

Thomas Hunn

Eberhard Armbrust

Michael Becker

Fritz Gerber

Volker Munz

Bernd Zackl

A motor vehicle has a vehicle body and a chassis that has at least one wheel suspension device for two opposing wheel. An adjusting device is assigned to each of the wheels. The adjusting devices are coupled to one another by a stabilizer. At least two stabilizer bearings are provided for rotatable support of the stabilizer, and at least one coupling device is provided on the vehicle body for variable torque support of the stabilizer. Accordingly, a reliable level lifting function is provided, based on a sturdy configuration that is both space-saving and weight-saving. The coupling device for torque support of the stabilizer on the vehicle body may have a switchable blocking device and/or at least one spring mechanism.

Motor vehicle having a vehicle body and a chassis

An inner and an outer spring plate are disposed, in a radially spaced relationship from one another, on a spring strut cylinder. In a first springing position (normal position), the helical spring is supported with a turn region of small diameter against the inner spring plate. In a second springing position (sports position) of the helical spring, the latter is supported with a turn region of larger diameter against the outer spring plate.

Device for setting the spring constant of a helical spring

A wheel suspension for an axle of a motor vehicle has a transverse control arm and tension strut, the transverse control arm being held on the wheel carrier by way of a joint, and the body-side bearings of the transverse control arm and of the tension strut as well as of the connection bearing between the transverse control arm and the tension strut being constructed with a defined characteristic for the elastokinematic adjustment of the wheel under the effect of lateral and peripheral forces acting upon the wheel. The transverse control arm with the connected tension strut is arranged below a wheel drive shaft and--with respect to the driving direction--in front of a tie rod. In the top view, the tension strut extends diagonally toward the front, the transverse control arm and the tie rod having a positive position with respect to one another. They form a wheel steering pole situated outside the track width and behind the wheel center transverse plane. In front of the wheel center transverse plane and outside the wheel center longitudinal plane, a point of intersection is formed through an axis extending through the wheel-carrier-side joint of the transverse control arm and the body-side bearing of a McPherson spring strut or, alternatively, of an upper side double arm and spring strut assembly.

Wheel suspension system with elastokinematic wheel adjustment

A wheel suspension for an axle of a motor vehicle, particularly a McPherson front axle, has a transverse control arm and a pivotally connected tension strut, the transverse control arm being held on the wheel carrier by way of a joint, and the body-side bearings of the transverse control arm and of the tension strut as well as of the connection bearing between the transverse control arm and the tension strut being constructed with a defined characteristic for the elastokinematic adjustment of the wheel under the effect of peripheral forces acting upon the wheel. The transverse control arm with the connected tension strut is arranged in an approximately horizontal plane and extends below the wheel spin axis approximately in a wheel center transverse plane. The tension strut is pivotally connected to the transverse control arm by way of a connection bearing and extends at an angle diagonally with respect to a longitudinal center axis of the vehicle. The transverse control arm is arranged, in each case, at a distance in the perpendicular and longitudinal direction with respect to a tie rod of a steering gear arranged below the wheel spin axis and--with respect to the driving direction--in front of the transverse control arm.

Wheel suspension

For improving the load-change behavior of a motor vehicle when driving through a curve, the motor vehicle is provided with a lockable differential continuously activatable in its locking action. The activation of the locking differential takes place in the first instance in two steps dependent on power output, whereby a velocity-dependent characteristic may be superimposed additionally on this power output-dependent control.

Controller for lockable differential transmission

A control arrangement for a four-wheel drive vehicle which has at least one gear box or differential with controllable power transmission characteristics having circuitry for producing control signals in response to vehicle operating conditions and parameters. The arrangement allows for control of the distribution of torque to the respective wheels of the vehicle as a function of a selected number of parameters, such as relative or average wheel speed, engine speed, gas pedal or throttle valve angle, etc. The arrangement contemplates the simultaneous control of more than one adjustable gear box or differential as a function of commonly and/or separately sensed parameters.

Control arrangement for four-wheel drive vehicles

Growing community of inventors

Bietigheim-Bissingen, Germany

Matthias Dietz