Abstract:
A method is provided for steering a vehicle that is to be backed into a parking space. Starting from an initial position outside the parking space, a reverse trajectory that is to be traveled to attain the parked position is determined. The vehicle reverses through five curve sections, and steering of the vehicle during the reversing procedure is controlled by an electronic control system in accordance with the reverse trajectory. When viewed from the driving direction, the second curve section represents a clothoid section, the third represents an arc section, the fourth represents an additional clothoid section and the fifth represents an additional arc section. In its initial position, the vehicle is at an angle to the longitudinal direction of the parking space and the first curve section, through which the vehicle reverses and which lies between the initial position and the start of the second curve section, is represented by a different geometrical function than the second curve section.
Abstract:
A method for adjusting the spatial position of the roll axis of a motor vehicle includes: a) defining a desired spatial position of the roll axis; b) determining a transverse acceleration of the motor vehicle; c) defining a desired transverse tilt of the motor vehicle and determining a desired transverse offset of the motor vehicle as a function of the transverse acceleration, so that the roll axis is moved into the desired position when the desired transverse tilt and the desired transverse offset are adjusted; d) adjusting a first actuator of an active chassis system of the motor vehicle, so that the motor vehicle assumes the desired transverse tilt determined in step c); and adjusting a second actuator to influence the transverse movement of the motor vehicle, so that the motor vehicle assumes the desired transverse offset determined in step c).
Abstract:
A vehicle wheel includes a wheel rim on which is provided a plurality of plate-like covering elements, which are mounted so as to be pivotable about a pivot axis, for temporarily closing off associated apertures in the wheel rim, wherein each covering element can be displaced along the pivot axis under centrifugal force counter to the force of a restoring element and is connected to the wheel rim by means of a coupling element, which imparts positive guidance during a displacement movement, in such a way that the covering element can be pivoted between a radially inner open position and a radially outer closed position, wherein a pivot axis rod arranged on the outer side of the wheel rim is connected to the covering element via a hydraulic or pneumatic vibration damper.
Abstract:
The invention relates to a wheel suspension for a motor vehicle, comprising a wheel-side carrier part (12) holding a vehicle wheel (1) in a rotatable manner, and an axle-side guiding part (14) between which mutually rotating rotary parts (16, 18) are arranged. The guiding part (14), the rotary parts (16, 18) and/or the carrier part (12) interact with first and second effective areas (18a, 36a; 18b, 16b; 16a, 54a) facing each other. According to the invention, the first effective area radially defines a conical or spherical hollow profile into which the corresponding second effective area protrudes in an essentially form-fitting manner.
Abstract:
A method for operating a mechatronic chassis device of a motor vehicle, wherein the mechatronic chassis device has an arrangement with two servomotors which, when activated, individually change both a toe angle (δ) of a wheel and a camber angle (ε) of the wheel. The servomotors are controlled on the basis of target values in a predetermined manner, wherein if a first servomotor cannot be placed into operation, an emergency program is started and the second servomotor is controlled in a manner different from the predetermined manner such that a lateral force on the wheel is adjusted to a predetermined desired value.
Abstract:
In a motor vehicle having two, in particular electrical, drives, a partial torque is in each case intended to be assigned to the individual drives from a demanded total torque, to be precise taking account of the energy efficiency on the one hand and the stability of the vehicle on the other hand. A first controller is responsible for taking account of the energy efficiency, and predetermines a bandwidth of possible partial torques for an individual drive. This bandwidth may be restricted by a second controller, when driving stability requires this. The second controller is coupled to appropriate sensors (yaw rate sensor, lateral acceleration sensor, longitudinal acceleration sensor) and knows the steering angle φ. In the course of interchanging data signals with a first control device, the partial torques are defined with the involvement of the second control device, for which purpose the first control device emits control commands.
Abstract:
In a method for the operation of a transverse guiding driver assist system of a motor vehicle, a road banking information is ascertained as a function of a change in a deviation of a transverse course of a road surface from a horizontal. A future road course is determined from environmental data and/or operating data of a motor vehicle, using the road banking information. A lateral track deviation is determined as a result of a change of a road banking, using the road banking information. At least one transverse guiding parameter is established from the future road course and the road banking information to determine a steering intervention. The lateral track deviation is then corrected by using the transverse guiding parameter.
Abstract:
The invention relates to a wheel suspension system for motor vehicles having a wheel carrier, which has a wheel-side support element, which mounts in a rotatable manner a vehicle wheel, and an axle-side support element, between which is connected an actuating member, on actuation of which the wheel-side support element can be pivoted through a pivot angle (φ) relative to the axle-side support element for the purpose of adjusting a track and/or camber angle (δ, ε). According to the invention, the actuating member has a wheel-side rotational part and an axle-side rotational part, both of which can be rotated about their axes of rotation relative to each other, and the wheel-side rotational part can be deflected through the pivot angle (φ) relative to the axle-side rotational part when the two rotational parts are rotated.
Abstract:
The invention relates to a device for adjusting the camber and/or toe of the wheels of a wheel suspension, particularly for motor vehicles, having a wheel carrier on which each wheel is rotatably supported and comprising a carrier part receiving the wheel and a guide part connected to the wheel suspension, between which rotating parts (26, 28) rotating about a rotation axis and preferably driven by an electric motor are disposed, bringing about a defined displacement of the carrier part and/or the guide part by the rotational actuation thereof for changing the camber and/or toe. According to the invention, a single adjusting drive (54) is provided for actuating the rotary parts (26, 28), by means of which the two rotary parts (26, 28) can be adjusted in different, particularly in opposite, directions.
Abstract:
The invention relates to a device for adjusting the camber and/or toe of the wheels (20) of wheel suspensions (10), especially for motor vehicles, including a wheel carrier (12) on which the respective wheel (20) is rotatably mounted and which is subdivided into a carrier part (24) receiving the wheel, a guide part (22) connected to the wheel suspension (10), and two rotary parts, especially control cylinders (26, 28), arranged between the carrier part and the guide part and rotatable in relation to each other, to the carrier part (24) and to the guide part (22) about a common rotation axis (32). Each of the rotary parts can be moved by a drive (40) and a servo drive (42) in both directions of rotation. According to the invention, the servo drive (42) is designed for at least one of the rotary parts (26, 28) as a planetary gear train (42), and the planetary gear train (42) is especially radially externally arranged around the rotary part (26, 28).