US 11,866,043 B2
Power control device for controlling an electric machine in a vehicle trailer
Slawa Knorr, Ramsau am Dachstein (AT)
Assigned to ROBERT BOSCH GMBH, Stuttgart (DE)
Appl. No. 16/967,116
Filed by Robert Bosch GmbH, Stuttgart (DE)
PCT Filed Mar. 14, 2019, PCT No. PCT/EP2019/056382
§ 371(c)(1), (2) Date Aug. 3, 2020,
PCT Pub. No. WO2019/179866, PCT Pub. Date Sep. 26, 2019.
Claims priority of application No. 102018204391.4 (DE), filed on Mar. 22, 2018.
Prior Publication US 2021/0031770 A1, Feb. 4, 2021
Int. Cl. B60W 30/18 (2012.01); B60W 10/08 (2006.01); B60D 1/01 (2006.01); G01C 21/36 (2006.01); B60W 10/18 (2012.01); B62D 59/04 (2006.01); B60D 1/62 (2006.01)
CPC B60W 30/18009 (2013.01) [B60D 1/01 (2013.01); B60D 1/62 (2013.01); B60W 10/08 (2013.01); B60W 10/18 (2013.01); B62D 59/04 (2013.01); G01C 21/36 (2013.01); B60W 2300/14 (2013.01)] 6 Claims
OG exemplary drawing
 
1. A power control device for controlling an electric machine in a vehicle trailer, the electric machine being coupled to at least one wheel of the vehicle trailer to be able to convert mechanical rotation power at the wheel and electric power at the electric machine into one another, the power device configured to:
control a mechanical power output of the electric machine and/or a mechanical power input of the electric machine; and
control the mechanical power output of the electric machine and/or the mechanical power input of the electric machine as a function of a present driving condition of a towing vehicle pulling the vehicle trailer, wherein:
the vehicle trailer includes a drawbar for attachment to the towing vehicle and for transmitting forces between the towing vehicle and the vehicle trailer, and
wherein the power control device includes an electromechanical sensor system configured to generate a sensor signal indicative of the driving condition, wherein the mechanical power output of the electric machine and/or the mechanical power input of the electric machine is controlled as a function of a force presently transmitted by the drawbar or as a function of a present relative distance between the towing vehicle and the vehicle trailer,
a deflection lever is provided at the drawbar, which is displaced into various orientations as a function of a relative distance between the towing vehicle and the vehicle trailer, the sensor system configured to generate the sensor signal as a function of a present orientation of the deflection lever,
a force transmission unit engages at the deflection lever, which causes a force on a brake of the vehicle trailer as a function of an orientation of the deflection lever, using which a braking force caused by the brake is controlled, and a damping element is situated between the deflection lever and the force transmission unit, which transmits a force in a damped manner between the deflection lever and the force transmission unit.