High-integration angle module

Abstract

The invention discloses a high-integration angle module which comprises a driving system mounted on wheels and used for transmitting power to the wheels to drive a chassis to run; the suspension system is used for connecting the driving system and the steering system and comprises a support and an elastic damping element, the elastic damping element is installed at the lower end of the support, and the lower end of the elastic damping element is connected with the driving system; the steering system comprises a connecting support, an electric steering gear and a transmission structure, the electric steering gear and the transmission structure are installed on the connecting support, the transmission structure is connected between the electric steering gear and the support, the electric steering gear outputs steering torque to the support through the transmission structure, and therefore steering of the wheels is achieved. The structure is compact, the integration level, the modularization level and the flexible expansion capacity of the whole vehicle can be improved, the trafficability of the whole vehicle can be improved, and flexible combination and expansion can be conducted according to the loading size, the weight, the mass center and the like.

Description

Technical Field

[0001] The present invention relates to the technical field of vehicle equipment, and in particular to a highly integrated corner module. Background Art

[0002] With the development of new energy technology, new methods and ideas are provided to solve the problem of heavy-duty vehicle electric drive technology. The development of electric drive technology has led to the increasing application of multi-axle heavy-duty electric drive chassis in the field of military and civilian special vehicles.

[0003] The system composition of the existing multi-axle heavy-load electric drive chassis is complex. Compared with the traditional mechanical drive chassis, it has added power batteries, drive motors, generators, high and low voltage distribution boxes, vehicle and system-level controllers, thermal management systems, etc. It has many system components and complex connections between them.

[0004] Therefore, how to design a highly integrated corner module that can optimize the overall vehicle layout and improve space utilization is an urgent problem that needs to be solved. Summary of the invention

[0005] The purpose of the present invention is to provide a highly integrated corner module with a compact structure, which can improve the integration, modularization level and flexible expansion capability of the entire vehicle, and can improve the passability of the entire vehicle. It can be flexibly combined and expanded according to the size, weight, center of mass, etc. of the upper body.

[0006] In order to achieve the above object, the technical solution of the present invention is: a highly integrated corner module, comprising:

[0007] Drive system: installed on the wheels, used to transmit power to the wheels and drive the chassis to move;

[0008] Suspension system: used to connect the driving system and the steering system, the suspension system comprises a bracket and an elastic damping element, the elastic damping element is mounted on the lower end of the bracket, and the lower end of the elastic damping element is connected to the driving system;

[0009] Steering system: includes a connecting support, an electric steering gear installed on the connecting support and a transmission structure, wherein the transmission structure is connected between the electric steering gear and the support, and the electric steering gear outputs the steering torque to the support through the transmission structure, thereby realizing the steering of the wheel.

[0010] The present invention provides a highly integrated angle module, wherein the elastic damping element adopts at least one oil-gas spring, and the upper and lower ends of the oil-gas spring are respectively connected to the bracket and the driving system.

[0011] The present invention provides a highly integrated corner module, wherein the driving system adopts an electric wheel, the electric wheel is installed in the rim of the wheel, and is detachably connected to the spoke plate of the rim.

[0012] The present invention provides a highly integrated angle module, wherein the lower end of the oil-gas spring is mounted on the steering knuckle of the electric wheel.

[0013] The present invention provides a highly integrated angle module, wherein the bracket includes an inverted L-shaped bracket body and a connecting column arranged on the upper surface of the bracket body, the upper end of the oil and gas spring is connected to the lower end of the bracket body, the output end of the transmission structure is installed on the upper surface of the bracket body, and the connecting column is passed through the output end of the transmission structure.

[0014] The present invention provides a highly integrated angle module, wherein the transmission structure includes an output gear installed on the output shaft of the electric steering gear and an externally toothed turntable connected to the upper surface of the bracket body, the connecting column is passed through the center of the externally toothed turntable, the output gear is meshed with the externally toothed turntable, and the externally toothed turntable is located below the connecting support.

[0015] The present invention provides a highly integrated angle module, wherein the connecting support comprises a connecting support body with an I-shaped longitudinal section and a mounting plate extending horizontally outward from the lower plate of the connecting support body, the electric steering gear is mounted on the upper surface of the mounting plate, and the output shaft of the electric steering gear passes downward through the mounting plate and is mounted together with the output gear.

[0016] The invention discloses a highly integrated corner module, wherein the upper surface of the connecting support body is detachably connected to a vehicle frame or a vehicle frame crossbeam.

[0017] The present invention provides a highly integrated angle module, wherein the electric steering gear adopts a kingpin steering type electric steering gear, and the steering kingpin of the electric steering gear is located directly above the wheel center of the wheel.

[0018] The present invention provides a highly integrated corner module, which also includes a braking system, including a brake disc and a brake cylinder. The brake disc and the brake cylinder are integrated in the drive system and are used to brake the wheels.

[0019] After adopting the above scheme, a highly integrated corner module of the present invention integrates the drive system, suspension system, steering system and braking system on one side of the wheel. Its structural design is compact, so that the inner side of the frame longitudinal beam becomes a complete space, which is more conducive to the layout of large-size electrical equipment and power batteries; the corner module can be flexibly combined and expanded according to the size, weight, center of mass, etc. of the upper body. It is used in a distributed modular electric drive chassis, which can greatly improve the chassis space utilization rate, improve integration, modularization, and scalability, and meet the transportation needs of various upper bodies. When a whole vehicle is composed of multiple corner modules of the present invention, each corner module is independent of each other and can achieve independent drive / brake control. In addition, there is no mechanical connection between the left and right corner modules of the same bridge, and the steering of the left and right wheels is independent of each other. The left and right wheels can fully meet the Ackerman steering relationship during the vehicle steering process through precise control. It can eliminate the additional turning angle generated during the wheel jumping process, and solve the problem of excessive tire wear caused by the change of the virtual axis in different steering modes. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the three-dimensional structure of an embodiment of a highly integrated corner module of the present invention;

[0021] Figure 2 It is a rear view structural schematic diagram of a highly integrated corner module embodiment of the present invention;

[0022] Figure 3 is a schematic diagram of the three-dimensional structure of the steering system of the present invention;

[0023] Figure 4 It is a schematic diagram of the three-dimensional connection structure between the suspension system of the present invention and the driving system.

[0024] Number Description:

[0025] 1-wheel 2-electric wheel

[0026] 3- Rim 4- Bracket

[0027] 5-Standard body 6-Connecting column

[0028] 7-Hydro-pneumatic spring 8-Steering knuckle

[0029] 9-Connecting support 10-Electric steering gear

[0030] 11-Connect the support body 12-Mounting plate

[0031] 13-Output gear 14-External gear type turntable DETAILED DESCRIPTION

[0032] The present invention is described below based on the embodiments shown in the accompanying drawings. The embodiments disclosed this time can be considered to be illustrative in all aspects and not restrictive. The scope of the present invention is not limited by the description of the following embodiments, but is only shown by the scope of the claims, and includes all modifications with the same meaning as the scope of the claims and within the scope of the claims.

[0033] The structure of a highly integrated corner module of the present invention is described below in conjunction with specific embodiments.

[0034] like Figure 1 , Figure 2 The three-dimensional structural diagram and rear-view structural diagram of a highly integrated corner module embodiment of the present invention are shown, including a drive system, a suspension system, a steering system and a braking system, which are used to realize the functions of driving, vibration reduction, steering and braking.

[0035] The drive system is installed on the wheel 1, and is used to convert electrical energy into mechanical energy and transmit power to the wheel 1 to drive the chassis to travel. The drive system of this embodiment uses an electric wheel 2, which is installed in the rim 3 of the wheel 1. The electric wheel 2 is connected to the spoke plate of the rim 3 through multiple bolts and nuts.

[0036] The suspension system is used to connect the driving system and the steering system. The suspension system of this embodiment adopts a candle-type suspension structure. Figure 4 As shown, the suspension system includes a bracket 4 and an elastic damping element. The bracket 4 of this embodiment includes an inverted L-shaped plate-shaped bracket body 5 and a connecting column 6 arranged on the upper surface of the bracket body 5. The bracket body 5 and the connecting column 6 of this embodiment are processed as a whole to form the bracket 4. The elastic damping element of this embodiment adopts two oil-gas springs 7, and the upper end of each oil-gas spring 7 is respectively connected to the lower end of the bracket body 5 by bolts, and the lower end of the oil-gas spring 7 is installed on the lower part of the steering knuckle 8 of the electric wheel 2 by bolts. The oil-gas spring 7 not only plays a role in buffering and vibration reduction, but also serves as a guide device for the up and down jumping of the wheel 1.

[0037] Steering system: The steering system adopts a distributed wire-controlled steering solution. Figure 3 As shown, it includes a connecting support 9, an electric steering gear 10 installed on the connecting support 9, and a transmission structure, wherein the input end and the output end of the transmission structure are connected to the electric steering gear 10 and the bracket 4 respectively.

[0038] The connecting support 9 includes a connecting support body 11 with an I-shaped longitudinal section and a mounting plate 12 extending horizontally outward from the lower plate of the connecting support body 11. The upper surface of the connecting support body 11 is connected to the frame or the frame crossbeam by a plurality of bolts to fix the electric steering gear 10.

[0039] The electric steering gear 10 of this embodiment adopts a kingpin steering type electric steering gear. The electric steering gear 10 is arranged above the center of the wheel 1. The steering kingpin of the electric steering gear 10 is located directly above the wheel center of the wheel 1, ensuring that the swept area is minimized when the wheel 1 rotates at the same angle. The electric steering gear 10 can drive the corner module as a whole to turn around the steering kingpin as a whole. The electric steering gear 10 is installed on the upper surface of the mounting plate 12 by multiple bolts, and the output shaft of the electric steering gear 10 passes downward through the mounting plate 12 and is connected to the input end of the transmission structure. The output end of the transmission structure is installed on the upper side of the bracket body 11.

[0040] The transmission structure includes an output gear 13 mounted on the output shaft of the electric steering gear 10 and an external gear-type turntable 14 connected to the upper surface of the bracket body 11 by multiple bolts. The external gear-type turntable 14 is located below the connecting support body 11. The electric steering gear 10 outputs the steering torque to the bracket 4 through the transmission structure, thereby realizing the steering of the wheel 1. The connecting column 6 is inserted into the center hole of the external gear-type turntable 14, and the output gear 13 is engaged with the external gear-type turntable 14 to achieve deceleration and torque increase to meet the steering torque requirements of the wheel 1. When the electric steering gear 10 outputs torque, it can drive the angle module as a whole to rotate around the connecting column 6 of the bracket 4.

[0041] The braking system adopts an electromechanical composite braking solution, including a brake disc and a brake cylinder, which are integrated in the electric wheel 2 and are used to brake the wheel 1. The service brake of the braking system adopts a hybrid working mode of electronic hydraulic wire control brake (EHB) and motor anti-drag brake. During service braking, the oil source power is transmitted to the brake cylinder in the electric wheel 2 through the hydraulic pipeline to achieve braking. The parking brake adopts a hand-operated, air-off / liquid-off energy storage spring action mode and is arranged at the wheel center on the inner side of the electric wheel 2.

[0042] A highly integrated corner module of the present invention integrates the drive system, suspension system, steering system and braking system on one side of the wheel 1. Its structural design is compact, so that the inner side of the frame longitudinal beam becomes a complete space, which is more conducive to the layout of large-size electrical equipment and power batteries; the corner module can be flexibly combined and expanded according to the size, weight, center of mass, etc. of the upper body. It is used in a distributed modular electric drive chassis, which can greatly improve the chassis space utilization rate, improve integration, modularization, and scalability, and meet the transportation needs of various upper bodies. When a whole vehicle is composed of multiple corner modules of the present invention, each corner module is independent of each other and can achieve independent drive / brake control. In addition, there is no mechanical connection between the left and right corner modules of the same bridge, and the steering of the left and right wheels 1 is independent of each other. The left and right wheels can fully meet the Ackerman steering relationship during the vehicle steering process through precise control. It can eliminate the additional turning angle generated during the beating of the wheel 1, and solve the problem of excessive tire wear caused by the change of the virtual axis in different steering modes.

[0043] The above-described embodiments are merely descriptions of preferred implementations of the present invention and are not intended to limit the scope of the present invention. Without departing from the design spirit of the present invention, various modifications and improvements made to the technical solutions of the present invention by ordinary engineering and technical personnel in the field shall fall within the protection scope of the claims of the present invention.

Claims

1. A highly integrated corner module, characterized in that: include: Drive system: installed on the wheels, used to transmit power to the wheels and drive the chassis to move; Suspension system: used to connect the driving system and the steering system, the suspension system comprises a bracket and an elastic damping element, the elastic damping element is mounted on the lower end of the bracket, and the lower end of the elastic damping element is connected to the driving system; Steering system: includes a connecting support, an electric steering gear installed on the connecting support and a transmission structure, wherein the transmission structure is connected between the electric steering gear and the support, and the electric steering gear outputs the steering torque to the support through the transmission structure, thereby realizing the steering of the wheel.

2. A highly integrated corner module as claimed in claim 1, characterized in that: The elastic damping element adopts at least one oil-gas spring, and the upper and lower ends of the oil-gas spring are respectively connected to the bracket and the driving system.

3. A highly integrated corner module as claimed in claim 2, characterized in that: The driving system adopts an electric wheel, which is installed in the rim of the wheel and is detachably connected to the spoke plate of the rim.

4. A highly integrated corner module as claimed in claim 3, characterized in that: The lower end of the oil-gas spring is mounted on the steering knuckle of the electric wheel.

5. The highly integrated corner module according to claim 1, characterized in that: The bracket includes an inverted L-shaped bracket body and a connecting column arranged on the upper surface of the bracket body, the upper end of the oil and gas spring is connected to the lower end of the bracket body, the output end of the transmission structure is installed on the upper surface of the bracket body, and the connecting column is passed through the output end of the transmission structure.

6. A highly integrated corner module as claimed in claim 5, characterized in that: The transmission structure includes an output gear installed on the output shaft of the electric steering gear and an externally toothed turntable connected to the upper surface of the bracket body, the connecting column is passed through the center of the externally toothed turntable, the output gear is meshed with the externally toothed turntable, and the externally toothed turntable is located below the connecting support.

7. A highly integrated corner module as claimed in claim 6, characterized in that: The connecting support includes a connecting support body with an I-shaped longitudinal section and a mounting plate extending horizontally outward from the lower plate of the connecting support body. The electric steering gear is installed on the upper surface of the mounting plate. The output shaft of the electric steering gear passes downward through the mounting plate and is installed together with the output gear.

8. A highly integrated corner module as claimed in claim 7, characterized in that: The upper surface of the connecting support body is detachably connected to the vehicle frame or the vehicle frame crossbeam.

9. The highly integrated corner module according to claim 1, characterized in that: The electric steering gear is a kingpin steering type electric steering gear, and the steering kingpin of the electric steering gear is located just above the wheel center of the wheel.

10. The highly integrated corner module according to claim 1, characterized in that: It also includes a braking system, including a brake disc and a brake cylinder, wherein the brake disc and the brake cylinder are integrated in the drive system and are used to brake the wheels.

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