阅读说明：本技术 具有电动驱动马达、电动液压制动器和诸如变速器、扭矩矢量和驻车制动器的附加模块的车辆轴 (Vehicle axle with electric drive motor, electrohydraulic brake and additional modules such as transmission, torque vectoring and parking brake ) 是由 托马斯·莱贝尔 于 2019-12-20 设计创作，主要内容包括：本发明涉及一种具有液压操作车轮制动器(RB1、RB2；RB3、RB4)和/或额外液压负载、特别是离合器片气缸的车辆轴(VA、HA),该车辆轴包括以下部件：至少一个压力供应装置(DV1、DV2),其用于控制车轮制动器(RB1-RB4、H-EMB)中的压力,该压力供应装置由电动马达驱动器(M1、M2)驱动；至少一个电子开环和闭环控制装置(DV ECU1、DV ECU2)以及阀组件(HCU),该阀组件具有用于设定车轮特定制动压力和/或用于将车轮制动器(RB1、RB2、RB3、RB4、H-EMB)与压力供应装置(DV1、DV2)断开连接或将该车轮制动器连接至该压力供应装置的值；至少一个电动驱动马达(TM、TM1、TM2),其用于对车辆车轮或车辆轴进行驱动和制动,其特征在于,至少一个压力供应装置(DV1、DV2)用于控制至少一个额外的制动单元(BA)的压力和/或向该至少一个额外的制动单元提供压力,其形式为：电动驻车制动器(EPB)、液压支持机电制动器(H-EMB)、机电制动器(EMB)和/或力支持的、特别是液压操作的转向装置(EPS)、齿轮致动器和/或变速器致动器和/或扭矩矢量模块。(The invention relates to a vehicle axle (VA, HA) having hydraulically actuated wheel brakes (RB1, RB 2; RB3, RB4) and/or an additional hydraulic load, in particular clutch disc cylinders, comprising the following components: at least one pressure supply device (DV1, DV2) for controlling the pressure in the wheel brakes (RB1-RB4, H-EMB), which is driven by an electric motor drive (M1, M2); at least one electronic open-and closed-loop control device (DV ECU1, DV ECU2) and a valve assembly (HCU) having a value for setting a wheel-specific brake pressure and/or for disconnecting or connecting a wheel brake (RB1, RB2, RB3, RB4, H-EMB) from or to a pressure supply device (DV1, DV 2); at least one electric drive motor (TM, TM1, TM2) for driving and braking a vehicle wheel or vehicle axle, characterized by at least one pressure supply device (DV1, DV2) for controlling the pressure of and/or providing pressure to at least one additional brake unit (BA) in the form of: an Electric Parking Brake (EPB), a hydraulically assisted electromechanical brake (H-EMB), an electromechanical brake (EMB) and/or a force-assisted, in particular hydraulically operated, steering gear (EPS), a gear actuator and/or a transmission actuator and/or a torque vectoring module.)

1. A vehicle axle (VA, HA) with hydraulically operated wheel brakes (RB1, RB 2; RB3, RB4) and/or additional hydraulic loads, in particular clutch actuator cylinders, having the following components:

-at least one pressure supply device (DV1, DV2) for controlling the pressure in the wheel brakes (RB1-RB4, H-EMB), said pressure supply device (DV1, DV2) being driven by an electric motor drive (M1, M2);

-at least one electronic control and regulation device (DV ECU1, DV ECU2) and a valve assembly (HCU) having values for setting a wheel-specific brake pressure and/or for disconnecting the wheel brakes (RB1, RB2, RB3, RB4, H-EMB) from the pressure supply device (DV1, DV2) or connecting the wheel brakes (RB1, RB2, RB3, RB4, H-EMB) to the pressure supply device (DV1, DV 2);

-at least one electric drive motor (TM, TM1, TM2) for driving and braking a vehicle wheel or the vehicle axle,

characterized in that at least one pressure supply device (DV1, DV2) is used for controlling the pressure of and/or providing pressure to at least one additional brake unit (BA) in the form of: hydraulically supported electromechanical brakes (H-EMB), force-supported, in particular hydraulically operated steering devices (EPS), gear actuators and/or transmission actuators and/or torque vectoring modules.

2. Vehicle axle according to claim 1, characterised in that the pressure supply device has a piston-cylinder unit, the piston of which is adjusted by an electric motor drive (M1) via a gear, in particular a spindle drive, for pressure control in the wheel brake (RB1-RB4, H-EMB).

3. Vehicle axle according to claim 1 or 2, characterised in that the pressure supply device has a rotary pump, in particular in the form of a gear pump, which is regulated by an electric motor drive (M1) for pressure control in the wheel brake (RB1-RB4, H-EMB).

4. Vehicle axle according to claim 1, characterised in that one or more components or sub-components thereof of the pressure supply device (DV1, DV2), the electronic control and regulation device (DV ECU1, DV ECU2) and/or the valve assembly (HCU) are redundant and/or that in the event of a partial or complete failure of the pressure supply device (DV1, DV2), the electronic control and regulation device (DV ECU1, DV ECU2) and/or the valve assembly (HCU), a braking force can be generated on the vehicle axle or at least one wheel by means of still functional components, actuation devices, electric drive motors (TM, TM1, TM2) and/or at least one additional brake unit (BA).

5. Vehicle axle according to claim 1 or 2, characterised in that two pressure supply devices are provided which in control operation provide pressure control and/or pressure supply in different parts of the vehicle axle and that in the event of a failure and/or partial failure of one pressure supply device the other pressure supply device takes over the pressure control and/or pressure supply assigned to at least one part of the failed pressure supply device.

6. Vehicle axle according to one of the claims 1 to 3, characterised in that a pressure supply device is used for controlling and/or supplying pressure for operating at least one clutch actuator of the transmission, in particular a no-load-break 2-speed transmission with a plurality of clutches.

7. Vehicle axle according to claim 1, characterised in that, in addition to the brake, a main device or an additional pressure supply device actuates at least one clutch actuator of a transmission, in particular a no-load-break 2-speed transmission with torque vectoring.

8. The vehicle axle according to one of the preceding claims, characterized in that the vehicle axle is a front axle (VA) with a power steering (EHPS).

9. Vehicle axle according to one of the preceding claims, characterised in that at least one electronic control and regulation unit (ECU1, ECU2), in particular each electronic control and regulation unit (ECU1, ECU2), controls the electric motor drive (M1, M2) or the individual windings of an electric motor drive (M1, M2).

10. Vehicle axle according to one of the preceding claims, characterised in that the pressure supply device (DV1, DV2) is combined with the valve assembly (R-HCU) and at least one electronic control unit assigned to the pressure supply device to form a module or assembly.

11. The vehicle axle of claim 8, wherein the module or the assembly is arranged or fastened on the vehicle axle or on a vehicle chassis beside the vehicle axle.

12. Vehicle axle according to one of the preceding claims, characterised in that there is an actuating device (BE), in particular a brake pedal or an electric brake pedal for increasing the pressure in at least one wheel brake, and that the control signal of the actuating device (BE) is used for controlling the brake.

13. Vehicle axle according to one of the preceding claims, characterised in that a pressure supply device is assigned to each wheel of the axle in control operation and that, in the event of a failure or partial failure of a pressure supply device, at least one control and regulating unit of the pressure supply device and/or a valve assembly (R-HCU), the respective other pressure supply device which is still intact takes over the pressure control of both wheels of the vehicle axle by means of a connection module (VM).

14. Vehicle axle according to one of the preceding claims, characterised in that a superordinate control and regulation unit (M-ECU) is provided for controlling and/or regulating components of the vehicle axle.

15. Vehicle axle according to one of the preceding claims, characterised in that a pressure supply device (DV-A1) for all components of a first vehicle axle (A1) is responsible for pressure control and/or pressure supply of all components in control operation, and that, in the event of a malfunction or partial malfunction of the pressure supply device of the first vehicle axle (A1), an additional pressure supply device responsible for the pressure control and/or pressure supply of a component of a second vehicle axle (A2) in control operation is used for the pressure control and/or pressure supply of the component of the first vehicle axle (A1).

16. Vehicle axle according to one of the preceding claims, characterised in that at least one pressure supply device (DV1, DV2) has two separate electronic control and regulation units (ECU1, ECU2) or dual redundant control and regulation units (DV1-ECU, DV2-ECU) for controlling the electric motor drives (M1, M2) of the pressure supply device.

17. Vehicle axle according to one of the preceding claims, characterised in that a medium separator piston MTK is arranged between the hydraulic circuit of the wheel brake or pressure supply device (DV1-a1) and the hydraulic components, in particular in the form of a manual transmission, a clutch and/or a gear selector, so that no mixing of the hydraulic medium takes place.

18. Vehicle axle according to one of the preceding claims, characterised in that the two hydraulic circuits can be separated from each other in a selectable manner and can also be connected to each other by a connecting module (VM).

19. Vehicle axle according to one of the preceding claims, characterised in that the hydraulic circuits of the two axles are connectable via 2 hydraulic lines HL1, HL2 and valves SVHL1 and SVHL 2.

20. Vehicle axle according to one of the preceding claims, characterised in that the connection valves SVHL1, SHHL2 are directly controlled by the ECU of the respective pressure supply unit, so that no additional connection module is required.

21. Vehicle axle according to one of the preceding claims, in which, in the event of a malfunction of an ECU of a pressure supply unit, the pressure supply unit still functioning can activate the two hydraulic circuits by opening the connecting valve SVHL1 or SVHL 2.

22. Vehicle axle according to one of the preceding claims, characterised in that the pressure supply device has a two-stroke piston, so that hydraulic medium can be conveyed and/or pressure can be increased or decreased in both directions of movement of the two-stroke piston.

23. Vehicle axle according to one of the preceding claims, characterised in that at least one component of the vehicle axle, in particular the control and regulation unit and/or the valve assembly, is supplied via two supply networks and/or supply voltages (BN1, BN2) and/or the signal lines (DS1, DS2) are designed redundantly.

24. Vehicle axle according to one of the preceding claims, characterised in that pressure reduction is carried out in a control operation, in particular when pressure dynamics requirements are high, for example under high- μ ABS control, in particular in the event of a malfunction of the pressure supplies DV1, DV2 or in the event of a malfunction of the ECU of the pressure supplies in the wheel brakes (RB1-RB4), by opening the outlet valve (AV) in the reservoir (VB), in particular in an extended multiplexing operation (known as the MUX 2.0 method) in which the pressure supply devices (DV1, DV2) take over the pressure control of all wheel brakes (RB1-RB 4).

25. Vehicle axle according to one of the preceding claims, characterised in that at least one wheel brake, preferably both wheel brakes, is a hydraulically supported electromechanical brake (H-EMB), an electrically operated parking brake (EPB) or an electromechanical brake (EMB), or in addition to the wheel brake (RB1-RB4), an additional parking brake (EPB), a hydraulically supported electromechanical brake (H-EMB) or an electromechanical brake (EMB) has a braking effect on the wheel.

26. Vehicle axle according to one of the preceding claims, characterised in that an electric drive motor (EM, TM1, TM2) is used for braking the vehicle axle or wheel.

27. Vehicle axle according to one of the preceding claims, characterised in that the superior control unit (M-ECU) determines the braking torque to be generated by the wheel brakes (RB1-RB4) during braking, in particular in the case of recuperation, and that the electronic control and regulation unit (ECU1, ECU2) controls the pressure supply (DV1, DV2) and/or controls or uses the at least one electric drive motor (TM1, TM2) to increase the generated braking torque accordingly, in addition to the braking torque generated by the wheel brakes (RB1-RB 4).

28. Vehicle axle according to one of the preceding claims, characterised in that the superior control unit (M-ECU) controls the power steering (EPS, EHPS).

29. Vehicle axle according to one of the preceding claims, characterised in that the pressure control in at least one wheel brake is carried out using at least one pressure sensor and/or by measuring the current of the motor of the drive and controlling the position of the piston of the pressure supply device, in particular taking into account the temperature of the drive.

30. Vehicle axle according to one of the preceding claims, characterised in that two pressure supply devices (DV1, DV2) are provided, one being a piston-cylinder unit and the other being a rotary pump, in particular in the form of a gear pump.

31. The vehicle axle according to claim 30, characterised in that the rotary pump is a gear pump (ZRP) and is designed in one stage or in a plurality of stages, which are arranged hydraulically in series.

32. Vehicle axle according to claim 30 or 31, characterised in that the gear pump (ZRP) is arranged or integrated in a motor housing of the motor driving the gear pump, in particular at least partially within its rotor of the drive motor.

33. The vehicle axle according to one of claims 30 to 32, characterised in that the rotary pump (ZRP), the drive and the valve of the rotary pump and the pressure sensor (DG) are combined or arranged in a structural unit, a module or a housing and form a pressure supply.

34. Vehicle axle according to one of the claims 30 to 33, characterised in that the rotor of the drive or of the drive of the rotary pump runs dry or is sealed off from the hydraulic medium of the rotary pump to be delivered, in particular by at least one seal from the part of the rotary pump delivering the hydraulic medium.

35. The vehicle axle of one of the preceding claims, characterized in that the torque vectoring module is hydraulically controlled or controllable via the pressure supply device (DV1, DV2) and a valve of the HCU.

36. Vehicle axle according to one of the preceding claims, characterised in that the brake torque can also be generated by an electromechanical brake (EMB) and/or an Electric Parking Brake (EPB).

37. Vehicle with at least one vehicle axle according to one of the preceding claims.