Vehicle type matching system and method for steering system and vehicle

Abstract

The invention discloses a vehicle type matching system and method for a steering system and a vehicle, and belongs to the field of vehicle steering. The vehicle model selecting and assembling system comprises a whole vehicle configuration module, a whole vehicle controller, a power-assisted steering controller and all steering system assemblies. The whole vehicle configuration module is used for generating corresponding steering system configuration information according to different vehicle models. The vehicle control unit is used for converting the steering system configuration information into a corresponding configuration frame and transmitting the configuration frame to a corresponding steering system assembly and the power-assisted steering controller; the steering system assembly is used for sending a power-assisted steering starting signal required by the corresponding vehicle type according to the corresponding configuration frame; and the power-assisted steering controller is used for calling the corresponding power-assisted steering starting signal according to the corresponding configuration frame. According to the method, the difference points of the vehicle types are integrated and classified, and the vehicle types are selectively configured according to the difference points of the vehicle types, so that the same steering system is suitable for different vehicle types.

Description

Technical Field

[0001] The present invention belongs to the field of vehicle steering, and in particular, relates to a vehicle model selection system and method for a steering system and a vehicle. Background Art

[0002] With the rapid development of society and the rapid advancement of science and technology, we have become inseparable from our means of transportation - cars.

[0003] In today's society, people's living standards are gradually improving, and private cars have become a means of transportation that people are vying for. As demand increases, various problems will follow, requiring us to continuously optimize the performance of various aspects of the car and move forward in a safer and more convenient direction.

[0004] Society's demands are diverse. For example, the low-carbon economy has given rise to new energy vehicles, low fuel consumption has allowed hybrid vehicles to flourish, and the exploration of new clean fuels has brought hydrogen energy onto the stage.

[0005] The function of the automobile steering system is to ensure that the car can turn and drive according to the driver's will, change the direction of the car in a timely manner, and ensure that the car can drive stably, safely and normally. The automobile steering system is crucial to the driving safety of the car, so the parts of the automobile steering system are called safety parts. The automobile steering system is divided into two categories, including mechanical steering system and power steering system. The steering system is mainly composed of three parts: steering control mechanism (steering wheel, steering shaft, steering column, etc.), steering gear (converting the rotational motion of the steering control mechanism into the linear motion of the steering transmission mechanism) and steering transmission mechanism (steering rocker arm, steering straight tie rod, steering knuckle arm, steering trapezoidal arm and steering tie rod, etc.).

[0006] For the steering system of different models, the electronic control strategy of the steering power controller is different. The industry is generally divided into three categories: ① The prerequisite for the steering of oil vehicles (ICE) to provide power is the speed signal of the engine EMS, the speed signal of the braking system, the ignition signal of the vehicle and the power supply of the ECU; ② The prerequisite for the steering of electric vehicles (EV) to provide power is the high-voltage signal HVready of the vehicle, the speed signal of the braking system, the IG signal of the vehicle (in the ACC state) and the ignition signal of the vehicle and the power supply of the ECU (electronic system controller); ③ The prerequisite for the steering of hybrid models to provide power is the dynamic total analog signal of the VCU (vehicle controller), the speed signal of the braking system, the IG signal of the vehicle (in the ACC state) and the ignition signal of the vehicle and the power supply of the ECU. The DTC (fault code) of each model is different, and it needs to be matched one by one, and different functions are configured according to different configuration requirements. Summary of the invention

[0007] The present invention aims to overcome the deficiencies of the prior art and proposes a vehicle model selection system, method and vehicle for a steering system to achieve the following objectives: through the vehicle model selection system of the present application, the differences between various vehicle models are integrated and classified, and vehicle models are selectively configured according to the differences between various vehicle models, thereby making the same steering system suitable for different vehicle models.

[0008] In order to achieve the above object, the technical solution adopted by the present invention is:

[0009] A vehicle model selection system for a steering system, the vehicle model selection system comprising a vehicle configuration module, a vehicle controller, a steering power controller and various steering system components, the vehicle configuration module is connected to the vehicle controller, the vehicle controller is connected to the steering power controller and various steering system components, wherein:

[0010] The vehicle configuration module is used to generate corresponding steering system configuration information for different vehicle models;

[0011] The vehicle controller is used to convert the steering system configuration information into a corresponding configuration frame and transmit it to the corresponding steering system component and the steering power controller;

[0012] The steering system component is used to send a steering assist start signal required by the corresponding vehicle model according to the corresponding configuration frame;

[0013] The power steering controller is used to call a corresponding power steering start signal according to a corresponding configuration frame to achieve power steering.

[0014] Preferably, the different vehicle types include pure electric vehicles (EV), plug-in hybrid vehicles (PHEV), non-plug-in hybrid vehicles (HEV), extended-range vehicles (REEV), and hydrogen energy vehicles.

[0015] Preferably, the steering system configuration information of the vehicle configuration module is represented by a configuration code, in which corresponding configuration bits are provided for different vehicle models and their steering power-assist start signal configuration information and fault code configuration information.

[0016] Preferably, the vehicle configuration module and the vehicle controller, the vehicle controller and the power steering controller, and each steering system component are connected via a CAN bus.

[0017] Preferably, the power steering controller pre-integrates and receives power steering start signals of all vehicle models, so as to directly perform optional calls upon receiving a configuration frame.

[0018] Preferably, the vehicle controller is a BDM.

[0019] Preferably, the vehicle controller includes a routing module, and the routing module is used to determine the destination of the configuration frame converted by the vehicle controller.

[0020] Preferably, different vehicle models require different power steering start signals, and the power steering start signal includes the engine EMS speed signal, the brake system speed signal, the vehicle ignition signal, the power supply signal, the vehicle high voltage signal, the power total analog signal, and the IG signal in the ACC state.

[0021] At the same time, the present application also proposes a vehicle model selection method for a steering system, the method is applied to the above-mentioned vehicle model selection system for a steering system, and the method comprises the following steps:

[0022] S1. For different vehicle models, corresponding steering system configuration information is generated through the vehicle configuration module;

[0023] S2, converting the steering system configuration information into a corresponding configuration frame through the vehicle controller, and routing and transmitting the configuration frame to the corresponding steering system component and the steering power controller;

[0024] S3. According to the corresponding configuration frame, the steering system component sends a steering assist start signal required by the corresponding vehicle model;

[0025] S4. According to the corresponding configuration frame, the power steering controller calls the corresponding power steering start signal to implement power steering.

[0026] The present application also proposes a vehicle, which includes the above-mentioned vehicle model selection system for a steering system.

[0027] The technical effect of the present invention is as follows: the present invention can realize matching between different vehicle models by configuring the code selection mode, so that different vehicle models (with different drive forms) use the same steering system, which can greatly reduce the development volume of the steering system, the management cost of the supplier, and the variety of workshop steering systems, is more conducive to on-site management, and realizes the intelligence, electrification, and networking of the steering system. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 The present invention is a structural diagram of a vehicle model selection system for a steering system according to an embodiment of the present invention. DETAILED DESCRIPTION

[0029] The following is a further detailed description of the specific implementation of the present invention by describing the embodiments with reference to the accompanying drawings, with the purpose of helping those skilled in the art to have a more complete, accurate and in-depth understanding of the inventive concept and technical solution of the present invention and to facilitate its implementation. In order to make the technical solution of the present invention clearer, the present invention is explained by the following embodiments.

[0030] At present, the steering systems selected by various OEMs for various models are independent of each other without integration, resulting in too many types of steering systems and high management costs. At present, the existing different models include pure electric vehicles EV, plug-in hybrid vehicles PHEV, non-plug-in hybrid vehicles HEV, extended-range vehicles REEV, hydrogen vehicles, etc., and their steering assistance activation prerequisites are different. After the present invention integrates the differences of various models, it only needs to use the model selection system of the present invention to adapt to the needs of different models.

[0031] A vehicle model selection system for a steering system, such as Figure 1 As shown, the steering system includes a power steering controller and various steering system components, and the vehicle model selection system includes a vehicle configuration module, a vehicle controller, a power steering controller and various steering system components. The vehicle configuration module is connected to the vehicle controller, and the vehicle controller is connected to the power steering controller and various steering system components. Preferably, the vehicle configuration module and the vehicle controller, the vehicle controller and the power steering controller, and various steering system components are connected via a CAN bus. The CAN bus has the advantages of high transmission efficiency and low deployment cost. At the same time, the present invention can encode and decode different vehicle model configuration information with the help of the CAN bus communication protocol, thereby realizing the development and construction of the vehicle model selection system of the present invention.

[0032] Specifically, the vehicle configuration module of this embodiment is used to generate corresponding steering system configuration information for different vehicle models. The meaning of the steering system configuration information is the prerequisite for turning on the steering system, that is, the steering power start signal issued by the required steering system components. Commonly used steering power start signals include the engine EMS (engine management system) speed signal, the vehicle speed signal of the braking system, the vehicle ignition signal, the power supply signal, the vehicle high voltage signal, the dynamic total analog signal, the IG signal in the ACC state, etc. This embodiment is not limited to the above signals. Different vehicle models require different steering power start signals. When implemented specifically, it should be flexibly configured according to actual conditions. For example, the prerequisite for the steering of an oil vehicle (ICE) to provide power assistance is the engine EMS speed signal, the braking system speed signal, the vehicle ignition signal and the ECU power supply signal.

[0033] In this embodiment, the vehicle configuration module represents the steering system configuration information corresponding to different vehicle models through configuration codes. In the configuration codes, corresponding configuration bits are set for different vehicle models. For example, two configuration bits 00 can be used to represent that the vehicle model is a gasoline vehicle and its steering power start signal configuration information and fault code configuration information; two configuration bits 01 can be used to represent that the vehicle model is a non-plug-in hybrid vehicle and its steering power start signal configuration information and fault code configuration information; and so on, each vehicle model specifies a corresponding different configuration bit. The encoded configuration code can be transmitted through the CAN bus for subsequent controllers to parse.

[0034] During the project development phase, each vehicle model and its steering system configuration information will be combined into a configuration table and input into the vehicle configuration module. The vehicle configuration module will sort out the steering system configuration information of each vehicle model according to the configuration table and make a one-to-one correspondence, so that the subsequent system can retrieve the corresponding steering system configuration information. The vehicle configuration module can edit the configuration code according to the configuration table to obtain the configuration code of different vehicle models. When using it, it can be directly called without re-editing the configuration code, thereby improving the system work efficiency. In this embodiment, the vehicle configuration module can be a programmable integrated chip such as a microcontroller and a CPU.

[0035] The vehicle controller of this embodiment is used to convert the steering system configuration information into a corresponding configuration frame and transmit it to the corresponding steering system component and the steering power controller. In this embodiment, after the vehicle configuration module sends the configuration code to the vehicle controller via the CAN bus, the vehicle controller will parse the configuration code based on the CAN bus protocol to obtain the corresponding vehicle model and the corresponding steering power start signal configuration information and fault code configuration information. Then, the vehicle controller will convert the parsed information into a corresponding configuration frame and send it to the steering power controller and the corresponding steering system component.

[0036] For example, a configuration frame 0000b represents a gasoline vehicle and its steering system configuration information and fault code configuration information, wherein the last two digits 00 are used to indicate that the vehicle model is a gasoline vehicle, and the rest represent the corresponding steering system configuration information and fault code configuration information; for example, a configuration frame 0001b represents a non-plug-in hybrid vehicle and its steering system configuration information and fault code configuration information, wherein the last two digits 01 are used to indicate that the vehicle model is a non-plug-in hybrid vehicle; and so on.

[0037] At the same time, in order to ensure that the converted configuration frame can be accurately sent to the corresponding steering system component or steering power controller, the vehicle controller of this embodiment includes a routing module, and the routing module can check the IP address of the configuration frame to determine the destination of the configuration frame after the conversion of the vehicle controller, thereby realizing the routing transmission between the vehicle controller and the steering system component and the steering power controller. Preferably, the vehicle controller of this embodiment adopts a body domain controller BDM. The body domain controller BDM is an integrated controller that brings together commonly used controllers on the vehicle, such as vehicle brake controller, power management system controller, vehicle ignition controller, gateway, etc., which are uniformly controlled by the body domain controller BDM. This embodiment can convert the configuration frame through the body domain controller BDM and transmit it to each steering system component through routing, without the participation of other controllers, which reduces costs and improves work efficiency.

[0038] The steering system component of this embodiment is used to send the steering power start signal required by the corresponding vehicle model according to the corresponding configuration frame. According to the different steering power start signals, the steering system components are also different. Commonly used steering system components include engine EMS, brake system, etc.

[0039] The power steering controller of this embodiment is used to call the corresponding power steering start signal according to the corresponding configuration frame to realize power steering. During use, the power steering controller can pre-integrate and receive the power steering start signal required by ICE, EV, HEV, REEV and other models. The summarized power steering start signal can be displayed through the human-computer interaction interface for direct selection and calling when receiving the configuration frame.

[0040] Embodiment 1:

[0041] Embodiment 1 takes a gasoline vehicle as an example to explain the vehicle model selection implementation process of the present invention:

[0042] 1. Confirm that the development of the power steering controller, the routing function of the vehicle controller BDM, and the vehicle configuration module have been completed.

[0043] 2. When entering the project development stage, there will be a configuration table input for each vehicle model, which contains the configuration information of each vehicle model. The vehicle configuration module generates different configuration information based on the configuration table and generates corresponding configuration codes and sends them to the body domain controller BDM. The configuration code of the oil vehicle in this embodiment can be 00;

[0044] 3. The body domain controller BDM will receive the oil vehicle configuration code 00, and convert it into the corresponding configuration frame 0000b through CAN bus protocol analysis. The configuration frame contains the required power steering start signal. For oil vehicles, the engine EMS speed signal, the brake system speed signal, the vehicle ignition signal and the ECU power supply signal are required. The steering system components used are the engine EMS, the brake system, the vehicle ignition system and the ECU power supply system. Then, the body domain controller BDM will route the configuration frame to each steering system component and the power steering controller;

[0045] 4. The power steering controller analyzes the configuration frame 0000b received from the oil truck, and retrieves the signal matrix composed of the power steering start signal required by the oil truck and the fault code configuration information according to the analysis result.

[0046] After the above process, the present invention can realize the configuration and selection of codes between different models, so that different models (with different drive forms) can use the same steering system, which can greatly reduce the development volume of the steering system, the management cost of the supplier, and the variety of steering systems in the workshop, and is more conducive to on-site management, and realizes the intelligence, electrification, and networking of the steering system.

[0047] At the same time, the present application also proposes a vehicle model selection method for a steering system, the method is applied to the above-mentioned vehicle model selection system for a steering system, and the method comprises the following steps:

[0048] S1. For different vehicle models, corresponding steering system configuration information is generated through the vehicle configuration module;

[0049] S2, converting the steering system configuration information into a corresponding configuration frame through the vehicle controller, and routing and transmitting the configuration frame to the corresponding steering system component and the steering power controller;

[0050] S3. According to the corresponding configuration frame, the steering system component sends a steering assist start signal required by the corresponding vehicle model;

[0051] S4. According to the corresponding configuration frame, the power steering controller calls the corresponding power steering start signal to implement power steering.

[0052] The present application also proposes a vehicle, which includes the above-mentioned vehicle model selection system for a steering system.

[0053] The present invention is described above by way of example in conjunction with the accompanying drawings. Obviously, the specific implementation of the present invention is not limited to the above-mentioned methods. As long as various non-substantial improvements are made using the method concept and technical solution of the present invention; or the above concept and technical solution of the present invention are directly applied to other occasions without improvement, they are all within the protection scope of the present invention.

Claims

1. A vehicle model selection system for a steering system, characterized in that: The vehicle model selection system includes a vehicle configuration module, a vehicle controller, a steering power controller and various steering system components, wherein the vehicle configuration module is connected to the vehicle controller, and the vehicle controller is connected to the steering power controller and various steering system components, wherein: The vehicle configuration module is used to generate corresponding steering system configuration information for different vehicle models; The vehicle controller is used to convert the steering system configuration information into a corresponding configuration frame and transmit it to the corresponding steering system component and the steering power controller; The steering system component is used to send a steering assist start signal required by the corresponding vehicle model according to the corresponding configuration frame; The power steering controller is used to call a corresponding power steering start signal according to a corresponding configuration frame to achieve power steering.

2. A vehicle type selection system for a steering system according to claim 1, characterized in that: The different vehicle types include pure electric vehicles (EV), plug-in hybrid vehicles (PHEV), non-plug-in hybrid vehicles (HEV), extended-range vehicles (REEV), and hydrogen vehicles.

3. A vehicle type selection system for a steering system according to claim 1, characterized in that: The steering system configuration information of the vehicle configuration module is represented by a configuration code, in which corresponding configuration bits are set for different vehicle models and their steering power start signal configuration information and fault code configuration information.

4. A vehicle type selection system for a steering system according to claim 1, characterized in that: The vehicle configuration module and the vehicle controller, the vehicle controller and the power steering controller, and each steering system component are connected via a CAN bus.

5. The vehicle model selection system for a steering system according to claim 1, characterized in that: The power steering controller pre-integrates and receives power steering start signals of all vehicle models, and is used to directly perform optional calls when receiving a configuration frame.

6. A vehicle type selection system for a steering system according to claim 1, characterized in that: The vehicle controller is a BDM.

7. A vehicle type selection system for a steering system according to claim 1 or 6, characterized in that: The vehicle controller includes a routing module, and the routing module is used to determine the destination of the configuration frame converted by the vehicle controller.

8. The vehicle model selection system for a steering system according to claim 1, characterized in that: Different models require different power steering start signals, which include the engine EMS speed signal, the brake system speed signal, the vehicle ignition signal, the power supply signal, the vehicle high voltage signal, the power total analog signal, and the IG signal in the ACC state.

9. A vehicle model selection method for a steering system, characterized in that: The method is applied to a vehicle model selection system for a steering system according to any one of claims 1 to 8, and the method comprises the following steps: S1. For different vehicle models, corresponding steering system configuration information is generated through the vehicle configuration module; S2, converting the steering system configuration information into a corresponding configuration frame through the vehicle controller, and routing and transmitting the configuration frame to the corresponding steering system component and the steering power controller; S3. According to the corresponding configuration frame, the steering system component sends a steering assist start signal required by the corresponding vehicle model; S4. According to the corresponding configuration frame, the power steering controller calls the corresponding power steering start signal to implement power steering.

10. A vehicle, characterized in that: The vehicle comprises a vehicle type selection system for a steering system according to any one of claims 1-8.

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