摘要:
A vehicle suspension system comprises suspension units (2) with double acting hydraulic actuators (12) for carrying the road wheels (4). Signals from transducers sensing actuator load and actuator piston position (14, 15) are used in a control system (5) to generate signals representing forces corresponding to heave, pitch, roll and warp modes of vehicle movement and control signals are generated for supply to servo-valves (18) associated with the actuators to obtain desired vehicle attitude. The control signals can be modified by signals representing vehicle speed and lateral and longitudinal acceleration and under selective control of the driver.
摘要:
Die Erfindung betrifft eine Schaltventileinheit (17) zum Be- und Entlüften von Luftfederbälgen (2) zum Heben und Senken eines Aufbaus eines Fahrzeugs oder Anhängers. Erfindungsgemäß ist eine manuelle Betätigungseinrichtung (11) vorgesehen, die mechanisch mit der Ventilbaugruppe (4) gekoppelt ist, so dass durch manuelle Betätigung der Betätigungseinrichtung (11) die Ventilbaugruppe (4) in die Stellung Heben, Senken und/oder Stopp überführbar ist. Erfindungsgemäß verfügt die manuelle Betätigungseinrichtung (11) über eine manuell um eine Schwenkachse verschwenkbare Kurvenscheibe (64). Die Kurvenscheibe (64) besitzt eine Kurvenfläche (65) mit einer Betätigungskontur. Die Betätigungskontur betätigt Stößel (39), die translatorisch und parallel zur Schwenkachse der Kurvenscheibe (64) geführt sind. Über die Stößel können Ventile (20, 21) der Ventilbaugruppe (4) betätigt werden.
摘要:
A wheel attitude control method of the invention comprises the steps of: chronologically obtaining acceleration data in a radial direction of a tire at a center position of a tire tread and at an off-center position spaced apart from the center position toward a shoulder; obtaining respective contact lengths at the center position and the off-center position from the acceleration data; and controlling a wheel attitude, which varies in accordance with changes in a load applied to the wheel when the braking force is imparted to the wheel, based on the obtained contact length at the center position and the obtained contact length at the off-center position.
摘要:
A vehicle control system for controlling a vehicle having a body (28), a pair of front wheels (4), and a pair of rear wheels (10), comprising a body-height adjusting device (30, 150, 120, 170) which adjusts four body heights each of which is defined as a relative-position relationship between corresponding one wheel of the pair of front wheels (4) and the pair of rear wheels (10), and the body (28); and a brake-operation-force control device (150, 152, 24, 26, 80, 78, 72) which controls respective operation forces of a pair of front-wheel brakes (14) and a pair of rear-wheel brakes (15) that restrain respective rotations of the pair of front wheels (4) and the pair of rear wheels (10). The brake-operation-force control device (150, 152, 24, 26, 80, 78, 72) comprises an operation-force lowering portion (152, S55-S57,150, S4-S6) which lowers, when the body-height adjusting device (30, 150, 120, 170) is adjusting at least one of the four body heights, the respective operation forces of at least one pair of brakes (14, 15) of the pair of front-wheel brakes (14) and the pair of rear-wheel brakes (15), as compared with the respective operation forces when the body-height adjusting device (30, 150, 120, 170) is not adjusting any of the four body heights.
摘要:
A powertrain control ECU (10) sets a target driving force (Pt), and controls an internal combustion engine (2, 3, 4) and a transmission (5) of a vehicle (1). A first processor (11) of the powertrain control ECU (10) includes a driving force adjustment portion (114), a filter (115), a mode-switch (18), and an environmental information-obtaining device (17), and a steering sensor (16). The driving force adjustment portion (114) sets the target driving force (Pt) based on at least one of instructions from a driver and from a second processor (12). The filter (115) corrects the target driving force (Pt) to suppress vibration on a spring of the vehicle (1). The mode-switch (18) sets the running mode. The environmental information-obtaining device (17) obtains information on the environment around the vehicle (1). The steering angle sensor (16) determines the running condition. A correction amount, by which the filter (115) corrects the target driving force (Pt), is adjusted according to the running mode, the environment, and the running condition.
摘要:
The invention relates to a method and a device for carrying out a braking process. According to the invention, a deceleration variable (Zsoll) describing the desired vehicle deceleration (Zsoll) is reduced when the driving state of the vehicle during the braking process meets a first state condition and is increased when the driving state of the vehicle meets a second state condition. The first state condition and/or the second state condition depends on the front axle compression travel (SVA) and/or on the rear axle compression travel (SHA).