Drive-by-wire chassis and vehicle

Abstract

The invention discloses a drive-by-wire chassis and a vehicle, the drive-by-wire chassis comprises a chassis body, the chassis body comprises a front longitudinal beam, a middle frame and a rear longitudinal beam, and the middle frame is detachably connected with the front longitudinal beam and the rear longitudinal beam; the first driving module is arranged on the chassis body and is used for carrying out vehicle front-drive control; the second driving module is arranged on the chassis body and used for vehicle rear drive control; the CTC battery module is arranged on the chassis body and is used for providing a working power supply for the first driving module and the second driving module; and the chassis domain controller is arranged on the chassis body and used for controlling the vehicle through the first driving module and the second driving module. Therefore, through the middle frame, the front longitudinal beam and the rear longitudinal beam which are detachably connected, flexible adjustment of the wheel track, the wheel base and the ground clearance is achieved, so that the drive-by-wire chassis is rapidly matched with different vehicle types, the drive-by-wire chassis is decoupled from the vehicle body, independent development is facilitated, the development and verification period is shortened, and the development cost is reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of vehicle chassis, and in particular to a wire-controlled chassis and a vehicle. Background Art

[0002] With the development of intelligence, new requirements are put forward for the wire control of vehicle chassis. For example, related technologies have the following problems: on the one hand, since traditional chassis usually adopts mechanical connection, it is impossible to realize wire control to support autonomous driving requirements. At the same time, due to the coupled development of chassis and body, the development cycle is long and the cost is high. On the other hand, since the chassis used for different sizes, types and purposes may be different, it is impossible to quickly replace the chassis of different types of vehicles. Summary of the invention

[0003] The present invention aims to solve at least one of the technical problems in the related art to a certain extent. To this end, the first purpose of the present invention is to provide a wire-controlled chassis, which can achieve flexible adjustment of the track width, wheelbase and ground clearance through a detachably connected intermediate frame, front longitudinal beam and rear longitudinal beam, so that the wire-controlled chassis can be quickly adapted to different vehicle models, and the wire-controlled chassis is decoupled from the vehicle body, which is conducive to independent development, thereby shortening the development and verification cycle and reducing development costs.

[0004] A second object of the present invention is to provide a vehicle.

[0005] To achieve the above-mentioned purpose, the wire-controlled chassis proposed in the embodiment of the first aspect of the present invention includes: a chassis body, the chassis body includes a front longitudinal beam, an intermediate frame and a rear longitudinal beam, the intermediate frame is detachably connected to the front longitudinal beam and the rear longitudinal beam respectively; a first drive module, the first drive module is arranged on the chassis body, and is used for front-wheel drive control of the vehicle; a second drive module, the second drive module is arranged on the chassis body, and is used for rear-wheel drive control of the vehicle; a CTC battery module, the CTC battery module is arranged on the chassis body, and is used to provide working power for the first drive module and the second drive module; a chassis domain controller, the chassis domain controller is arranged on the chassis body, and is used to control the vehicle through the first drive module and the second drive module.

[0006] The controlled-by-wire chassis according to the embodiment of the present invention can realize flexible adjustment of track width, wheelbase and ground clearance through detachably connected middle frame, front longitudinal beam and rear longitudinal beam, so that the controlled-by-wire chassis can be quickly adapted to different vehicle models. The controlled-by-wire chassis is decoupled from the vehicle body, which is conducive to independent development, thereby shortening the development and verification cycle and reducing development costs.

[0007] In addition, the wire-controlled chassis according to the above embodiment of the present invention may also have the following additional technical features:

[0008] According to some embodiments of the present invention, the first drive module includes: a front wheel; a first motor and a first motor control unit or a first hub motor and a first hub motor control unit, wherein the first motor is connected to the front wheel through a front drive shaft, and the first motor control unit is used to control the driving force of the front wheel through the first motor, or the first hub motor control unit is used to control the driving force of the front wheel through the first hub motor; a first active suspension unit, the first active suspension unit is used to control the front wheel suspension; a first wire-controlled steering unit, the first wire-controlled steering unit is used to control the steering of the front wheel; a first wire-controlled braking unit, the first wire-controlled braking unit is used to control the braking of the front wheel.

[0009] According to some embodiments of the present invention, the second drive module includes: rear wheels; a second motor or a second hub motor and a second hub motor control unit, wherein the second motor is connected to the rear wheels through a rear drive shaft, and the second motor control unit is used to control the driving force of the rear wheels through the second motor, or the second hub motor control unit is used to control the driving force of the rear wheels through the second hub motor; a second active suspension unit, and the second active suspension unit is used to control the suspension of the rear wheels; a second wire-controlled steering unit, and the second wire-controlled steering unit is used to control the steering of the rear wheels; a second wire-controlled braking unit, and the second wire-controlled braking unit is used to control the braking of the rear wheels.

[0010] According to some embodiments of the present invention, the CTC battery module includes: a CTC frame; a battery system, the battery system is arranged on the CTC frame, and the battery system is connected to the first drive module and the second drive module respectively through high and low voltage wiring harnesses; a cooling system, the cooling system is arranged on the CTC frame, and is used to cool the battery system; a battery control unit, the battery control unit is connected to the battery system, and is used to control the output power of the battery system.

[0011] According to some embodiments of the present invention, the chassis domain controller is also used to obtain vehicle steering parameters and control the first drive module and the second drive module according to the vehicle steering parameters to achieve front-wheel steering, rear-wheel steering and four-wheel steering.

[0012] According to some embodiments of the present invention, the chassis domain controller is also used to obtain vehicle driving parameters and control the first driving module and the second driving module according to the vehicle driving parameters to achieve separate control of front-wheel drive, rear-wheel drive, four-wheel drive and left and right wheel driving force.

[0013] According to some embodiments of the present invention, the chassis domain controller is further used to obtain vehicle braking parameters, and control the first drive module and the second drive module according to the vehicle braking parameters to achieve reasonable distribution of four-wheel braking force.

[0014] According to some embodiments of the present invention, the chassis domain controller is further used to obtain vehicle suspension parameters, and control the first drive module and the second drive module according to the vehicle suspension parameters to achieve lifting control of the chassis body.

[0015] According to some embodiments of the present invention, the chassis domain controller is further provided with at least one expansion interface.

[0016] To achieve the above-mentioned purpose, a vehicle provided in an embodiment of a second aspect of the present invention includes a vehicle body and a wire-controlled chassis as described in the above-mentioned embodiment of the present invention.

[0017] The vehicle according to the embodiment of the present invention can be quickly adapted to different vehicle models by adopting the wire-controlled chassis of the embodiment of the present invention described above, and the wire-controlled chassis is decoupled from the vehicle body, which is conducive to independent development, thereby shortening the development and verification cycle and reducing development costs.

[0018] Additional aspects and advantages of the present invention will be given in part in the following description and in part will be obvious from the following description, or will be learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 is a schematic structural diagram of a wire-controlled chassis according to a specific embodiment of the present invention;

[0020] Figure 2 is a block diagram of a wire-controlled chassis according to an embodiment of the present invention;

[0021] Figure 3 is a schematic diagram of assembling a front longitudinal beam according to an embodiment of the present invention;

[0022] Figure 4 is a schematic diagram of assembling a rear longitudinal beam according to an embodiment of the present invention;

[0023] Figure 5 is a schematic diagram of assembling a front cross beam according to an embodiment of the present invention;

[0024] Figure 6 is a block diagram of a first driving module according to an embodiment of the present invention;

[0025] Figure 7 is a block diagram of a first driving module according to another embodiment of the present invention;

[0026] Figure 8is a block diagram of a second driving module according to an embodiment of the present invention;

[0027] Fig. 9 is a block diagram of a second driving module according to another embodiment of the present invention;

[0028] Fig.10 is a block diagram of a CTC battery module according to an embodiment of the present invention;

[0029] Fig.11 is a block diagram of a vehicle according to an embodiment of the present invention. DETAILED DESCRIPTION

[0030] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and should not be construed as limiting the present invention.

[0031] The following describes a wire-controlled chassis and a vehicle according to embodiments of the present invention with reference to the accompanying drawings.

[0032] First, combine the attached Figure 1 The partial structure of the wire-controlled chassis of the embodiment of the present invention is described. In a specific embodiment of the present invention, as shown in FIG. Figure 1 As shown, the wire-controlled chassis can be divided into the front half of the vehicle, the middle half of the vehicle and the rear half of the vehicle, wherein the front half of the vehicle is provided with a front anti-collision beam, a front longitudinal beam, wheels, a front active suspension, a front wire-controlled steering gear, a front motor and a front cross beam, the middle part of the vehicle is provided with a CTC frame and a CTC battery cell, and the rear part of the vehicle is provided with a rear anti-collision beam, a rear longitudinal beam, wheels, a rear active suspension, a rear wire-controlled steering gear, a rear motor, a rear cross beam and a chassis domain controller, etc.

[0033] It should be noted that the aforementioned chassis domain controller may also be set at the front or middle of the vehicle, and in the embodiments of the present invention, the specific setting position of the chassis domain controller may not be limited.

[0034] Figure 2 is a block diagram of a wire-controlled chassis according to an embodiment of the present invention.

[0035] Specifically, in some embodiments of the present invention, Figure 2 As shown, the controlled-by-wire chassis 1000 includes: a chassis body 10 , a first driving module 20 , a second driving module 30 , a CTC battery module 40 and a chassis domain controller 50 .

[0036] Specifically, the chassis body 10 includes a front longitudinal beam, an intermediate frame and a rear longitudinal beam, and the intermediate frame is detachably connected to the front longitudinal beam and the rear longitudinal beam respectively; the first drive module 20 is arranged on the chassis body 10 for front-wheel drive control of the vehicle; the second drive module 30 is arranged on the chassis body 10 for rear-wheel drive control of the vehicle; the CTC battery module 40 is arranged on the chassis body 10 for providing working power to the first drive module 20 and the second drive module 30; the chassis domain controller 50 is arranged on the chassis body 10 for controlling the vehicle through the first drive module 20 and the second drive module 30.

[0037] It can be understood that, in this embodiment, the chassis body 10 of the drive-by-wire chassis 1000 can be composed of a front longitudinal beam, an intermediate frame and a rear longitudinal beam, wherein one end of the front longitudinal beam is connected to the front subframe and the front suspension to provide support for the movement of the front suspension and connect the vehicle body to achieve load transfer, and the other end of the front longitudinal beam is detachably connected to the intermediate frame, and the length of the front longitudinal beam can be adjusted to achieve flexible adjustment of the chassis length and structure and size expansion. Similarly, one end of the rear longitudinal beam is connected to the rear subframe and the rear suspension to provide support for the movement of the rear suspension and connect the vehicle body to achieve load transfer, and the other end of the rear suspension is detachably connected to the intermediate frame, and the length of the rear longitudinal beam can be adjusted to achieve flexible adjustment of the chassis length and structure and size expansion. Thus, flexible adjustment of the track, wheelbase and ground clearance can be achieved, so that the drive-by-wire chassis can be quickly adapted to the bodies of different models (e.g., sedans, SUVs, MPVs, pickups, VANs).

[0038] Specifically, Figure 3 and Figure 4 As shown, the front longitudinal beam can be detachably connected to the middle frame by a connecting piece, and the rear longitudinal beam can also be connected to the middle frame by a connecting piece. Therefore, the cabin design of different lengths can be adapted by adjusting the length of the front longitudinal beam, the cab design of different lengths can be adapted by adjusting the length of the middle frame, and the trunk design of different lengths can be adapted by adjusting the length of the rear longitudinal beam. Among them, the cabin refers to the area at the front of the entire vehicle, including the engine or motor, gearbox, transmission system, cooling system, suspension system, etc., usually composed of the engine hood, etc. The cab is usually located in the middle of the vehicle, and consists of a cab door, front seats, dashboard, steering wheel, cab chassis, air conditioning, audio, etc. The trunk refers to the vehicle's larger storage area, usually located at the rear of the vehicle.

[0039] In addition, in some embodiments of the present invention, the chassis body 10 may further include a front crossbeam and a rear crossbeam, wherein Figure 5 As shown, the front cross beam is detachably connected to the front longitudinal beam. Similarly, the rear cross beam can also be detachably connected to the rear longitudinal beam (not shown in the figure). Furthermore, the width of the front cross beam and the rear cross beam can be adjusted to adapt to body designs with different body widths.

[0040] Also, in this embodiment, the first drive module 20, the second drive module 30, the CTC battery module 40 and the chassis domain controller 50 are all integrated on the chassis body 10 so that the wire-controlled chassis is decoupled from the vehicle body, which is conducive to independent development, shortening the development and verification cycle, and reducing development costs.

[0041] Further, in some embodiments of the present invention, such as Figure 6 and Figure 7 As shown, the first driving module 20 includes: front wheels 201, a first motor 202 and a first motor control unit 203 or a first hub motor 204 and a first hub motor control unit 205, a first active suspension unit 206, a first wire-controlled steering unit 207 and a first wire-controlled braking unit 208.

[0042] Specifically, Figure 6 and Figure 7 As shown, the first motor 202 is connected to the front wheel 201 through the front drive shaft, the first motor control unit 203 is used to control the driving force of the front wheel 201 through the first motor 202, or the first hub motor control unit 205 is used to control the driving force of the front wheel 201 through the first hub motor 204; the first active suspension unit 206 is used to control the suspension of the front wheel 201; the first wire-controlled steering unit 207 is used to control the steering of the front wheel 201; the first wire-controlled braking unit 208 is used to control the braking of the front wheel 201.

[0043] Specifically, in this embodiment of the present invention, the first motor control unit 203 can control the first motor 202 (such as the front motor) to work, so that the first motor 202 drives the front wheel 201 to rotate through the front drive shaft to achieve driving force control of the front wheel 201, or the first hub motor control unit 205 can control the first hub motor 204 to work, so that the first hub motor 204 drives the front wheel 201 to rotate, so as to achieve driving force control of the front wheel 201, and the first active suspension unit 206 can control the front suspension actuator. The active suspension adjusts the height, stiffness and damping of the front suspension to achieve suspension control of the front wheels 201. The first wire-controlled steering unit 207 can control the front wire-controlled steering gear through the EPS (Electronic-Power-Steering) actuator to drive the front wheels 201 to steer left and right to achieve steering control of the front wheels 201. The first wire-controlled braking unit 208 can control the front brake through the brake actuator to drive the front wheels 201 to brake, so as to achieve braking control of the front wheels 201 and four-wheel braking control adjustment.

[0044] Further, in some embodiments of the present invention, such as Figure 8 and Fig. 9 As shown, the second driving module 30 includes: rear wheels 301, a second motor 302 and a second motor control unit 303 or a second hub motor 304 and a second hub motor control unit 305, a second active suspension unit 306, a second wire-controlled steering unit 307 and a second wire-controlled braking unit 308.

[0045] Specifically, Figure 8 and Fig. 9 As shown, the second motor 302 is connected to the rear wheel 301 through the rear drive shaft, the second motor control unit 303 is used to control the driving force of the rear wheel 301 through the second motor 302, or the second hub motor control unit 305 is used to control the driving force of the rear wheel 301 through the second hub motor 304; the second active suspension unit 306 is used to control the suspension of the rear wheel; the second wire-controlled steering unit 307 is used to control the steering of the rear wheel; the second wire-controlled braking unit 308 is used to control the braking of the rear wheel.

[0046] Specifically, in this embodiment of the present invention, the second motor control unit 303 can control the second motor 302 (such as the rear motor) to work, so that the second motor 302 drives the rear wheel 301 to rotate through the rear drive shaft, so as to achieve driving force control of the rear wheel 301, or the second hub motor control unit 305 can control the second hub motor 304 to work, so that the second hub motor 304 drives the rear wheel 301 to rotate, so as to achieve driving force control of the rear wheel 301, the second active suspension unit 306 can control the rear active suspension through the suspension actuator to adjust the height, stiffness and damping of the rear suspension, so as to achieve suspension control of the rear wheel 301, the second wire-controlled steering unit 307 can control the rear wire-controlled steering machine through the EPS actuator to drive the rear wheel 301 to turn left and right, so as to achieve steering control of the rear wheel 301, and the second wire-controlled braking unit 308 can control the rear brake through the brake actuator to drive the rear wheel 301 to brake, so as to achieve braking control of the rear wheel 301.

[0047] It should be noted that, in the above embodiment, the first motor 202 and the second motor 302 are of a T-shaped dual-motor structure, which can provide greater power and torque for the vehicle and realize independent control of four-wheel torque. Alternatively, the first hub motor 204 and the second hub motor 304 can be used to omit the drive shaft and directly drive the wheels by the motor.

[0048] Further, in some embodiments of the present invention, such as Fig.10 As shown, the CTC battery module 40 includes: a CTC frame 401, a battery system 402, a cooling system 403 and a battery control unit 404.

[0049] Specifically, Figure 8 As shown, the battery system 402 is arranged on the CTC frame 401, and the battery system 402 is connected to the first drive module 20 and the second drive module 30 through high and low voltage wiring harnesses respectively; the cooling system 403 is arranged on the CTC frame 401, and is used to cool the battery system 402; the battery control unit 404 is connected to the battery system 402, and is used to control the output power of the battery system 402.

[0050] It can be understood that in this embodiment of the present invention, a chassis battery tray can be provided on the CTC frame 401, and the battery tray and the chassis frame are integrated into a design, and the battery system 402 can adopt a module-free design, that is, the CTC cells in the battery system 402 are directly assembled on the chassis battery tray, thereby achieving better integration and lightweight, and the battery system 402 is also configured with a cooling system 403 to ensure the fast charging safety and low-temperature charging efficiency of the battery system 402, wherein the cooling system 403 can perform three-sided composite cooling on the battery system 402, and at the same time, the battery control unit 404 can be used to control the output power of the battery system 402 in combination with the cell voltage and temperature, so as to improve the thermal runaway resistance of the battery system 402 and avoid the pressure difference problem caused by the uneven CTC cells in the battery system 402.

[0051] Furthermore, in some embodiments of the present invention, the chassis domain controller 50 is also used to obtain vehicle steering parameters, and control the first drive module 20 and the second drive module 30 according to the vehicle steering parameters to achieve front-wheel steering, rear-wheel steering and four-wheel steering.

[0052] Specifically, in this embodiment of the present invention, the mechanical steering column structure can be replaced by the first wire-controlled steering unit 206 in the first drive module 20 and the second wire-controlled steering unit 306 in the second drive module 30, and then the input angle signal and torque signal of the steering wheel are transmitted to the chassis domain controller 50 through electrical signals. Thus, the chassis domain controller 50 can control the steering angles of the front wheels 201 and the rear wheels 301 according to the inputs of the vehicle speed sensor and the displacement sensor to realize the steering movement of the vehicle, thereby realizing front-wheel steering, rear-wheel steering and four-wheel steering.

[0053] Optionally, in the above embodiment, the chassis domain controller 50 can generate corresponding vehicle steering parameters according to the input angle signal and torque signal of the steering wheel to achieve real-time changes in the wheel steering force, thereby ensuring the stability and reliability of the vehicle steering.

[0054] Among them, the first wire-controlled steering unit 206 and the second wire-controlled steering unit 306 can be an integrated MCU (dual processor, dual-bridge drive), and the vehicle speed sensor and the displacement sensor can be dual-channel Hall contactless PWM sensors to realize lane departure warning (LDW), lane keeping (LKA), automatic parking (APA), dynamic torque compensation and other mode integration, and support switching between active control (no driver participation) and manual control (driver participation) modes.

[0055] It should be noted that, in the above embodiment, while the first wire-controlled steering unit 206 is provided to perform steering control on the front wheels 201, a second wire-controlled steering unit 306 is also provided to perform steering control on the rear wheels 301, thereby achieving a smaller turning radius, improving the steering stability and reliability of the vehicle, and enhancing the driving experience of the user.

[0056] Furthermore, in some embodiments of the present invention, the chassis domain controller 50 is also used to obtain vehicle driving parameters, and control the first driving module 20 and the second driving module 30 according to the vehicle driving parameters to achieve front-wheel drive, rear-wheel drive and four-wheel drive.

[0057] Specifically, in this embodiment of the present invention, through the first motor 202 and the front drive shaft in the first drive module 20, and the second motor 302 and the rear drive shaft in the second drive module 30, the vehicle can be driven in the form of two-wheel drive (front drive or rear drive), or in the form of four-wheel drive. Thus, the chassis domain controller 50 can control the first drive module 20 and the second drive module 30 according to the vehicle drive parameters to realize front drive, rear drive, four-wheel drive and separate control of left and right wheel drive forces.

[0058] Optionally, in the above embodiment, the chassis domain controller 50 may generate corresponding vehicle driving parameters according to the opening of the accelerator pedal to achieve real-time changes in the wheel driving force, thereby ensuring the stability and reliability of the vehicle driving.

[0059] Furthermore, in some embodiments of the present invention, the chassis domain controller 50 is also used to obtain vehicle braking parameters, and control the first drive module 20 and the second drive module 30 according to the vehicle braking parameters to achieve front wheel braking, rear wheel braking and four-wheel braking control.

[0060] Specifically, in this embodiment of the present invention, the first brake-by-wire unit 208 in the first drive module 20 and the second brake-by-wire unit 308 in the second drive module 30 can be used to enable the vehicle to have six types of braking redundancy, including power redundancy, wheel speed redundancy, controller redundancy, communication redundancy and parking redundancy. Therefore, the chassis domain controller 50 can control the first drive module 20 and the second drive module 30 according to the vehicle braking parameters to achieve a reasonable distribution of four-wheel braking force, thereby meeting the L4 level autonomous driving requirements.

[0061] Optionally, in the above embodiment, the chassis domain controller 50 may generate corresponding vehicle braking parameters according to the travel of the brake pedal to achieve real-time changes in the wheel braking force, thereby ensuring the stability and reliability of vehicle braking.

[0062] Furthermore, in some embodiments of the present invention, the chassis domain controller 50 is also used to obtain vehicle suspension parameters, and control the first drive module 20 and the second drive module 30 according to the vehicle suspension parameters to achieve lifting control of the chassis body 10 and control of stiffness and damping.

[0063] Specifically, in this embodiment of the present invention, the first active suspension unit 206 in the first drive module 20 can control the height of the front active suspension, and the second active suspension unit 306 in the second drive module 30 can control the height of the rear active suspension, so that the chassis body 10 can move up and down according to a predetermined motion trajectory. Thus, the chassis domain controller 50 can control the first drive module 20 and the second drive module 30 according to the vehicle suspension parameters to realize the lifting and lowering control of the chassis body 10.

[0064] Optionally, in the above embodiment, the chassis domain controller 50 can autonomously sense and identify the vehicle status based on information feedback from the road surface, and generate corresponding vehicle suspension parameters to achieve real-time changes in damping and stiffness, thereby providing better comfort and chassis performance adjustment as road conditions change.

[0065] Furthermore, in some embodiments of the present invention, the chassis domain controller 50 is also provided with at least one expansion interface.

[0066] Specifically, in the above-mentioned embodiment of the present invention, the chassis domain controller 50 may also be provided with at least one expansion interface so as to meet other wire control requirements and improve the compatibility of the wire control chassis 1000 .

[0067] In summary, the wire-controlled chassis according to the embodiment of the present invention can realize flexible adjustment of the track width, wheelbase and ground clearance through the detachably connected middle frame, front longitudinal beam and rear longitudinal beam, so that the wire-controlled chassis can be quickly adapted to different vehicle models. The wire-controlled chassis is decoupled from the vehicle body, which is conducive to independent development, thereby shortening the development and verification cycle and reducing development costs.

[0068] Based on the above-mentioned wire-controlled chassis of the embodiment of the present invention, the embodiment of the present invention further provides a vehicle 3000, such as Fig.11 As shown, the vehicle 3000 includes a vehicle body 2000 and the wire-controlled chassis 1000 described in the aforementioned embodiment of the present invention.

[0069] It should be noted that the specific implementation of the vehicle in the embodiment of the present invention can refer to the specific implementation of the wire-controlled chassis in the aforementioned embodiment of the present invention. In addition, other structures and functions of the vehicle in the embodiment of the present invention are known to technicians in this field and will not be described here to reduce redundancy.

[0070] In summary, the vehicle according to the embodiment of the present invention can be quickly adapted to different vehicle models by adopting the wire-controlled chassis of the embodiment of the present invention, and the wire-controlled chassis is decoupled from the vehicle body, which is conducive to independent development, thereby shortening the development and verification cycle and reducing development costs.

[0071] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0072] In the description of the present invention, it is to be understood that the terms “center”, “longitudinal”, “lateral”, “length”, “width”, “thickness”, “up”, “down”, “front”, “back”, “left”, “right”, “vertical”, “horizontal”, “top”, “bottom”, “inside”, “outside”, “clockwise”, “counterclockwise”, “axial”, “radial”, “circumferential”, etc., indicating orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0073] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0074] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0075] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0076] Although the embodiments of the present invention have been shown and described above, it is to be understood that the above embodiments are exemplary and are not to be construed as limitations of the present invention. A person skilled in the art may change, modify, replace and vary the above embodiments within the scope of the present invention.

Claims

1. A wire-controlled chassis, characterized in that: The control-by-wire chassis comprises: A chassis body, the chassis body comprising a front longitudinal beam, an intermediate frame and a rear longitudinal beam, the intermediate frame being detachably connected to the front longitudinal beam and the rear longitudinal beam respectively; A first driving module, the first driving module is arranged on the chassis body and is used for front-wheel drive control of the vehicle; A second driving module, the second driving module is arranged on the chassis body and is used for performing rear-wheel drive control of the vehicle; A CTC battery module, the CTC battery module is arranged on the chassis body and is used to provide working power for the first driving module and the second driving module; A chassis domain controller is arranged on the chassis body and is used to control the vehicle through the first drive module and the second drive module.

2. The wire-controlled chassis according to claim 1, characterized in that: The first driving module comprises: Front wheel; A first motor and a first motor control unit or a first wheel hub motor and a first wheel hub motor control unit, wherein the first motor is connected to the front wheel through a front drive shaft, and the first motor control unit is used to control the driving force of the front wheel through the first motor, or the first wheel hub motor control unit is used to control the driving force of the front wheel through the first wheel hub motor; a first active suspension unit, the first active suspension unit being used for performing suspension control on the front wheels; a first steer-by-wire unit, the first steer-by-wire unit being used to perform steering control on the front wheels; A first brake-by-wire unit is used to perform braking control on the front wheels.

3. The wire-controlled chassis according to claim 1, characterized in that: The second driving module comprises: rear wheels; a second motor and a second motor control unit or a second wheel hub motor and a second wheel hub motor control unit, wherein the second motor is connected to the rear wheel through a rear drive shaft, and the second motor control unit is used to control the driving force of the rear wheel through the second motor, or the second wheel hub motor control unit is used to control the driving force of the rear wheel through the second wheel hub motor; a second active suspension unit, the second active suspension unit being used for performing suspension control on the rear wheels; a second wire-controlled steering unit, the second wire-controlled steering unit being used for controlling the steering of the rear wheels; A second brake-by-wire unit is used for performing brake control on the rear wheels.

4. The wire-controlled chassis according to claim 1, characterized in that: The CTC battery module comprises: CTC frame; A battery system, wherein the battery system is arranged on the CTC frame, and the battery system is connected to the first drive module and the second drive module through high and low voltage wiring harnesses respectively; A cooling system, the cooling system being arranged on the CTC frame and being used for cooling the battery system; A battery control unit is connected to the battery system and is used to control the output power of the battery system.

5. The wire-controlled chassis according to claim 1, characterized in that: The chassis domain controller is also used to obtain vehicle steering parameters and control the first drive module and the second drive module according to the vehicle steering parameters to achieve front-wheel drive steering, rear-wheel drive steering and four-wheel steering.

6. The wire-controlled chassis according to claim 5, characterized in that: The chassis domain controller is also used to obtain vehicle driving parameters and control the first driving module and the second driving module according to the vehicle driving parameters to achieve front-wheel drive, rear-wheel drive and four-wheel drive.

7. The wire-controlled chassis according to claim 6, characterized in that: The chassis domain controller is also used to obtain vehicle braking parameters and control the first drive module and the second drive module according to the vehicle braking parameters to achieve front wheel braking, rear wheel braking and four-wheel braking control.

8. The wire-controlled chassis according to claim 7, characterized in that: The chassis domain controller is also used to obtain vehicle suspension parameters and control the first drive module and the second drive module according to the vehicle suspension parameters to achieve lifting control of the chassis body.

9. The wire-controlled chassis according to claim 7, characterized in that: The chassis domain controller is also provided with at least one expansion interface.

10. A vehicle, characterized in that: The vehicle comprises a vehicle body and a wire-controlled chassis according to any one of claims 1-9.

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