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    • 5. 发明申请
    • A METHOD FOR CONTROLLING A WHEEL AXLE ASSEMBLY
    • WO2021121547A1
    • 2021-06-24
    • PCT/EP2019/085409
    • 2019-12-16
    • VOLVO TRUCK CORPORATION
    • ANGERFORS, Dan
    • B62D7/14B62D7/15B62D7/142B62D7/159
    • The present invention relates to a method for controlling a wheel axle assembly (18) of a vehicle (10).The vehicle (10) comprises a vehicle body (12) with a longitudinal axis (L) extending in a longitudinal direction, a transversal axis (T) extending in a transversal direction and a vertical axis (V) extending in a vertical direction.The longitudinal axis (L), the transversal axis (T) and the vertical axis (V) are perpendicular to each other. The longitudinal direction corresponds to an intended direction of travel of the vehicle (10) and the vertical direction being parallel to a vertical line when the vehicle (10) is positioned on a flat horizontally extending surface (14). The vehicle body (12) comprises a vehicle body (12) centre plane (P) extending along the longitudinal axis (L) and the vertical axis (V) and separating the vehicle body (12) into two body halves (15, 16). The wheel axle assembly (18) comprises a wheel axle (20) and at least a first and a second wheel, the first and second wheels (22, 24) being located on opposite sides of the vehicle body (12) centre plane (P), the wheel axle (20) having a wheel axle centreline (30) extending in a direction between the first and second wheels (22, 24). The wheel axle assembly (18) is pivotally connected to the vehicle body (12) around a pivot axis such that a wheel axle angle (32), being an angle between the wheel axle centreline (30) and a line (34) extending parallel to the transversal axis (T), can be varied. The vehicle (10) further comprises an adjustable reaction actuator (36) connecting a portion of the vehicle body (12) to a portion of the wheel axle (20) whereby a condition of the adjustable reaction actuator (36) controls the wheel axle angle (32). The method comprises determining a current vehicle operating condition and controlling the adjustable reaction actuator (36) to assume a low roll resistance condition on the basis of the determined vehicle operating condition, the low roll resistance condition resulting in a rolling resistance of the wheel axle assembly (18) being equal to or below a desired rolling resistance value.