Vehicle control system and vehicle

Abstract

The invention discloses a vehicle control system and a vehicle. The vehicle control system comprises a wheel speed sensor interface module used for transmitting wheel speed data detected by a wheel speed sensor to a single-chip microcomputer; the acceleration sensor interface module is used for transmitting acceleration data detected by an acceleration sensor to the single-chip microcomputer. The gyroscope is used for detecting the posture change of the vehicle and the speed change and acceleration change in each direction, and transmitting the change data to the single chip microcomputer; the CDC current driving module is used for adjusting damping of the shock absorber according to the first driving signal; the brushless motor driving module is used for controlling the brushless motor to work according to the second driving signal; the electromagnetic valve driving module is used for controlling the electromagnetic valve to work according to the third driving signal; and the brush motor driving module is used for controlling the brush motor to work according to the fourth driving signal. According to the vehicle control system, the manufacturing cost of the whole vehicle is reduced, and the occupied space of the whole vehicle is small.

Description

Technical Field

[0001] The present invention relates to the technical field of vehicle control, and in particular to a vehicle control system and a vehicle. Background Art

[0002] The vehicle uses a brake-by-wire system to achieve functions such as brake assist, ABS, and body stability control, and the vehicle uses an electronically controlled damping adjustment system to achieve the chassis' shock absorption function. In the related art, the vehicle's brake-by-wire system and electronically controlled damping adjustment system are separately arranged at different locations on the vehicle, which will result in a high manufacturing cost for the vehicle and occupy a large space in the vehicle. Summary of the invention

[0003] The present invention aims to solve one of the technical problems in the related art at least to a certain extent. To this end, the purpose of the present invention is to provide a vehicle control system to reduce the manufacturing cost of the whole vehicle.

[0004] To achieve the above-mentioned purpose, the first embodiment of the present invention proposes a vehicle control system, which includes: a CAN transceiver module, connected to a single-chip microcomputer and to a CAN bus, for transmitting and receiving data between the CAN bus and the single-chip microcomputer; a wheel speed sensor interface module, connected to the single-chip microcomputer and to a wheel speed sensor, for transmitting the wheel speed data detected by the wheel speed sensor to the single-chip microcomputer; a switch detection module, connected to the single-chip microcomputer and to a parking switch, for detecting the switch state of the parking switch and sending the switch state to the single-chip microcomputer; a power management module, connected between the single-chip microcomputer and a battery, for distributing and managing power; an acceleration sensor interface module, connected to the single-chip microcomputer and to an acceleration sensor, for transmitting the acceleration data detected by the acceleration sensor to the single-chip microcomputer; a gyroscope, connected to the single-chip microcomputer The MCU is connected to the control module, and is used to detect the posture change of the vehicle and the speed change and acceleration change in all directions, and transmit the change data to the MCU; the CDC current drive module is connected to the MCU and is connected to the shock absorber, and is used to adjust the damping of the shock absorber according to the first drive signal provided by the MCU; the brushless motor drive module is connected to the MCU, and is used to control the brushless motor to work according to the second drive signal provided by the MCU; the solenoid valve drive module is connected to the MCU, and is used to control the solenoid valve to work according to the third drive signal provided by the MCU; the brush motor drive module is connected to the MCU, and is used to control the brush motor to work according to the fourth drive signal provided by the MCU; the MCU is used to execute the control algorithm according to the received information and output the corresponding first drive signal, the second drive signal, the third drive signal and the fourth drive signal.

[0005] According to an embodiment of the present invention, the gyroscope is a 6-axis gyroscope.

[0006] According to an embodiment of the present invention, the single chip microcomputer is specifically used to: parse the wheel speed data, the change data and the acceleration data, calculate the target damping of the shock absorber to generate the first drive signal.

[0007] To achieve the above-mentioned object, a second embodiment of the present invention provides a vehicle, including the above-mentioned vehicle control system.

[0008] The vehicle control system of the embodiment of the present invention reduces the manufacturing cost of the whole vehicle and occupies less space in the whole vehicle by integrating the wire control brake system and the electronically controlled damping adjustment system into one system, thereby achieving simplified configuration and easy installation. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the accompanying drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings in the following description are only some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying creative labor.

[0010] Figure 1 is a schematic structural diagram of a vehicle control system according to an embodiment of the present invention; Figure 2 It is a schematic structural diagram of a vehicle according to an embodiment of the present invention. DETAILED DESCRIPTION

[0011] In order to make the purpose, technical scheme and advantages of the present invention more obvious, the exemplary embodiments according to the present invention will be described in detail with reference to the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments of the present invention, and it should be understood that the present invention is not limited to the exemplary embodiments described herein. Based on the embodiments of the present invention described in the present invention, all other embodiments obtained by those skilled in the art without creative work should fall within the protection scope of the present invention.

[0012] In the following description, a large number of specific details are provided to provide a more thorough understanding of the present invention. However, it is apparent to those skilled in the art that the present invention can be implemented without one or more of these details. In other examples, in order to avoid confusion with the present invention, some technical features well known in the art are not described.

[0013] It should be understood that the present invention can be implemented in different forms and should not be interpreted as limited to the embodiments set forth herein. On the contrary, these embodiments are provided to make the disclosure thorough and complete and to fully convey the scope of the present invention to those skilled in the art.

[0014] In order to fully understand the present invention, a detailed structure will be proposed in the following description to illustrate the technical solution proposed by the present invention. The optional embodiments of the present invention are described in detail as follows, but in addition to these detailed descriptions, the present invention may also have other implementations.

[0015] Some embodiments of the present invention are described in detail below in conjunction with the accompanying drawings. In the absence of conflict, the following embodiments and features in the embodiments can be combined with each other.

[0016] Please refer to the following Figure 1 -Attached Figure 2 A petrochemical equipment safety detection system according to an embodiment of the present invention is described.

[0017] Figure 1 It is a schematic structural diagram of a vehicle control system according to an embodiment of the present invention.

[0018] like Figure 1 As shown, the vehicle control system 10 includes: a CAN transceiver module 101 connected to a single-chip microcomputer 102 and connected to a CAN bus 103 for transmitting and receiving data between the CAN bus 103 and the single-chip microcomputer 102 .

[0019] Specifically, the CAN transceiver module 101 serves as a bridge between the vehicle controller area network (CAN bus 103) and the single-chip microcomputer 102, and is responsible for receiving and sending data. The CAN bus 103 is a widely used communication network inside the vehicle, which is used for data exchange between different control units. The CAN transceiver module 101 can achieve high-speed and reliable data transmission and support the collaborative work between various vehicle systems.

[0020] The wheel speed sensor interface module 104 is connected to the single chip microcomputer 102 and to the wheel speed sensor 105 , and is used to transmit the wheel speed data detected by the wheel speed sensor 105 to the single chip microcomputer 102 .

[0021] Specifically, the wheel speed sensor 105 monitors the rotation speed of the wheel and transmits the signal to the single chip computer 102 through the interface module 104, which can provide basic data for the vehicle dynamic control system (such as ABS, ESP, etc.) to help maintain the stability and safety of the vehicle.

[0022] As an example, the number of wheel speed sensors 105 is four.

[0023] The switch detection module 106 is connected to the single-chip microcomputer 102 and to the parking switch 107 , and is used to detect the switch state of the parking switch 107 and send the switch state to the single-chip microcomputer 102 .

[0024] Specifically, the state of the parking switch 107 (whether activated or not) is detected, and the state information is sent to the single chip microcomputer 102 to control the parking system of the vehicle to ensure the safety of the vehicle when it is parked.

[0025] The power management module 108 is connected between the single chip computer 102 and the battery 109 and is used for the distribution and management of power.

[0026] Specifically, it is responsible for the power distribution and management of the MCU 102 and other components of the vehicle control system, ensuring that each component operates at an appropriate voltage and current, improving energy efficiency, and protecting the system from voltage fluctuations and short circuits.

[0027] The acceleration sensor interface module 110 is connected to the single-chip microcomputer 102 and to the acceleration sensor 111 , and is used to transmit the acceleration data detected by the acceleration sensor 111 to the single-chip microcomputer 102 .

[0028] Specifically, the acceleration sensor 111 measures the acceleration of the vehicle in all directions and sends the data to the single chip computer 102 through the interface module 110, providing key data for vehicle dynamics analysis, collision warning and other systems.

[0029] The gyroscope 112 is connected to the single-chip microcomputer 102 and is used to detect changes in the vehicle's posture, speed and acceleration in all directions, and transmit the change data to the single-chip microcomputer 102 .

[0030] Specifically, the gyroscope 112 is directly connected to the single-chip microcomputer 102 to detect the vehicle's posture changes (such as tilt, roll) and the changes in speed and acceleration in various directions, which can enhance the accuracy of vehicle posture control and improve driving stability and safety.

[0031] The CDC current driving module 113 is connected to the single chip microcomputer 102 and connected to the shock absorber 114 , and is used to adjust the damping of the shock absorber 114 according to the first driving signal provided by the single chip microcomputer 102 .

[0032] Specifically, the CDC current driving module 113 adjusts the damping of the shock absorber 114 according to the first driving signal sent by the single chip microcomputer 102 to achieve active or semi-active suspension control, thereby improving the ride comfort and controllability of the vehicle under different road conditions.

[0033] The brushless motor driving module 115 is connected to the single chip microcomputer 102 and is used to control the brushless motor to work according to the second driving signal provided by the single chip microcomputer 102 .

[0034] Specifically, the brushless motor driving module 115 controls the operation of the brushless motor and receives the second driving signal from the single chip microcomputer 102 to drive the fan, water pump, air conditioning compressor and other components in the vehicle that require precise control.

[0035] The solenoid valve driving module 116 is connected to the single chip microcomputer 102 , and is used to control the solenoid valve to operate according to a third driving signal provided by the single chip microcomputer 102 .

[0036] Specifically, the solenoid valve driving module 116 controls the switch of the solenoid valve, receives the third driving signal of the single chip microcomputer 102, and realizes precise control of the fluid in various occasions such as the braking system, the shifting mechanism, and the cooling system.

[0037] The brushed motor driving module 117 is connected to the single chip microcomputer 102 , and is used to control the brushed motor to work according to the fourth driving signal provided by the single chip microcomputer 102 .

[0038] Specifically, the brushed motor driving module 117 controls the operation of the brushed motor and receives the fourth driving signal from the single chip microcomputer 102. It can drive some devices that do not require high cost and complexity, such as window lifters, wipers, etc.

[0039] The single chip microcomputer 102 is used to execute a control algorithm and output a corresponding first drive signal, a second drive signal, a third drive signal and a fourth drive signal according to the received information.

[0040] As an example, the single chip microcomputer can also be electrically connected to the ignition switch 118, the pedal position sensor 119 and the instrument switch 120, so as to obtain relevant signals and send relevant control signals in real time.

[0041] It should be noted that the single-chip microcomputer 102 is the "brain" of the entire vehicle control system. The single-chip microcomputer 102 receives data from various sensors and switches, executes complex control algorithms, and then outputs corresponding drive signals to various actuators. These algorithms may include various functions such as vehicle stability control, energy management, and driving assistance.

[0042] The vehicle control system of the embodiment of the present invention reduces the manufacturing cost of the whole vehicle and occupies less space in the whole vehicle by integrating the wire control brake system and the electronically controlled damping adjustment system into one system, thereby achieving simplified configuration and easy installation.

[0043] In some embodiments of the present invention, the gyroscope is a 6-axis gyroscope.

[0044] It should be noted that the six-axis gyroscope combines a three-axis gyroscope and a three-axis accelerometer, which can simultaneously measure the angular velocity and linear acceleration of an object in three axes, thereby providing more comprehensive and accurate motion state information.

[0045] The specific working process includes: the three-axis gyroscope in the six-axis gyroscope is responsible for measuring the angular velocity change of the object around the X, Y, and Z axes; and the three-axis accelerometer measures the linear acceleration of the object in these three axes. These data are collected and transmitted to the single-chip microcomputer 102 at the same time. After receiving the data from the gyroscope and the accelerometer, the single-chip microcomputer 102 first performs data verification and preprocessing (such as denoising, filtering, etc.) to improve the accuracy and reliability of the data. Then, the data of the two sensors are fused using a specific algorithm (such as Kalman filtering, complementary filtering, etc.) to eliminate errors and obtain more accurate attitude information. Through the fused data, the single-chip microcomputer 102 can calculate the real-time attitude of the vehicle. According to the calculated attitude information and other related parameters (such as wheel speed data, vehicle speed data, etc.), the single-chip microcomputer 102 can generate corresponding control signals and adjust the performance of the vehicle through actuators (such as shock absorbers, braking systems, etc.). As an example, the single-chip microcomputer 102 can adjust the damping value of the shock absorber according to the attitude information provided by the six-axis gyroscope to improve the ride comfort and handling stability of the vehicle.

[0046] In some embodiments of the present invention, the single chip computer 102 is specifically used to: parse the wheel speed data, the change data and the acceleration data, calculate the target damping of the shock absorber and generate the first driving signal.

[0047] As an example, after receiving the wheel speed data, the single-chip microcomputer 102 first performs data verification to ensure the accuracy and integrity of the data. Then, the wheel speed data is parsed to extract the real-time speed information of each wheel. After receiving the change data and acceleration data, the single-chip microcomputer 102 also performs data verification and parsing. The gyroscope data is used to calculate the angular velocity, angular acceleration and attitude angle (such as pitch angle, roll angle and yaw angle) of the vehicle, while the acceleration sensor data provides the linear acceleration information of the vehicle in all directions. After parsing the wheel speed data, gyroscope data and acceleration data, the single-chip microcomputer 102 uses these data for comprehensive analysis and processing. By running the control algorithm (such as PID control, fuzzy control, etc.) pre-installed in the single-chip microcomputer, the single-chip microcomputer 102 can calculate the optimal damping value of the shock absorber under the current driving conditions. According to the calculated target damping value, the single-chip microcomputer 102 will generate a corresponding first drive signal and send it to the shock absorber 114 through the CDC current drive module 113. The driving signal contains all the information required to adjust the damping of the shock absorber, such as the current size, duration, etc. After receiving the driving signal, the shock absorber 114 will adjust its damping characteristics according to the instructions of the signal, thereby changing the performance of the vehicle's suspension system to improve the vehicle's ride comfort, handling stability and road adaptability.

[0048] Corresponding to the above embodiment, the present invention also provides a vehicle.

[0049] Figure 2 It is a schematic structural diagram of a vehicle according to an embodiment of the present invention.

[0050] like Figure 2 As shown, the vehicle 1 includes: a vehicle control system 10 .

[0051] Although example embodiments have been described herein with reference to the accompanying drawings, it should be understood that the above example embodiments are merely exemplary and are not intended to limit the scope of the present application to this. Those of ordinary skill in the art may make various changes and modifications therein without departing from the scope and spirit of the present application. All these changes and modifications are intended to be included within the scope of the present application as required by the appended claims.

[0052] Those of ordinary skill in the art will appreciate that the units and algorithm steps of each example described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are performed in hardware or software depends on the specific application and design constraints of the technical solution. Professional and technical personnel can use different methods to implement the described functions for each specific application, but such implementation should not be considered to be beyond the scope of this application.

[0053] In the several embodiments provided in this application, it should be understood that the disclosed device can be implemented in other ways. For example, the device embodiments described above are only schematic, for example, the division of the units is only a logical function division, and there may be other division methods in actual implementation, such as multiple units or components can be combined or integrated into another device, or some features can be ignored or not executed.

[0054] In the description provided herein, a large number of specific details are described. However, it is understood that the embodiments of the present application can be practiced without these specific details. In some instances, well-known structures and technologies are not shown in detail so as not to obscure the understanding of this description.

[0055] Similarly, it should be understood that in order to streamline the present application and help understand one or more of the various inventive aspects, in the description of the exemplary embodiments of the present application, the various features of the present application are sometimes grouped together into a single embodiment, figure, or description thereof. However, the structure of the present application should not be interpreted as reflecting the following intention: the claimed application requires more features than the features clearly stated in each claim. More specifically, as reflected in the corresponding claims, the inventive point is that the corresponding technical problem can be solved with features less than all the features of a single disclosed embodiment. Therefore, the claims following the specific embodiment are hereby explicitly incorporated into the specific embodiment, wherein each claim itself serves as a separate embodiment of the present application.

[0056] Those skilled in the art will understand that, except for mutually exclusive features, all features disclosed in this specification (including the accompanying claims, abstracts and drawings) and all processes or units of any device disclosed in this specification may be combined in any combination. Unless otherwise explicitly stated, each feature disclosed in this specification (including the accompanying claims, abstracts and drawings) may be replaced by an alternative feature that provides the same, equivalent or similar purpose.

[0057] In addition, those skilled in the art will appreciate that, although some embodiments described herein include certain features included in other embodiments but not other features, the combination of features of different embodiments is meant to be within the scope of the present application and form different embodiments. For example, in the claims, any one of the claimed embodiments may be used in any combination.

[0058] The various component embodiments of the present application can be implemented in hardware, or in software modules running on one or more processors, or in a combination thereof. It should be understood by those skilled in the art that a microprocessor or a digital signal processor (DSP) can be used in practice to implement some or all functions of some modules according to the embodiments of the present application. The present application can also be implemented as a device program (e.g., a computer program and a computer program product) for executing part or all of the methods described herein. Such a program implementing the present application can be stored on a computer-readable medium, or can be in the form of one or more signals. Such a signal can be downloaded from an Internet website, or provided on a carrier signal, or provided in any other form.

[0059] It should be noted that the above embodiments illustrate the present application rather than limit the present application, and that those skilled in the art may design alternative embodiments without departing from the scope of the appended claims. In the claims, any reference symbol between brackets should not be constructed as a limitation to the claims. The word "comprising" does not exclude the presence of elements or steps not listed in the claims. The word "one" or "an" preceding an element does not exclude the presence of multiple such elements. The present application may be implemented by means of hardware including several different elements and by means of a suitably programmed computer. In a unit claim that lists several devices, several of these devices may be embodied by the same hardware item. The use of the words first, second, and third, etc. does not indicate any order. These words may be interpreted as names.

[0060] The above is only a specific implementation or description of a specific implementation of the present application, and the protection scope of the present application is not limited thereto. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed in the present application, which should be included in the protection scope of the present application. The protection scope of the present application shall be based on the protection scope of the claims.

Claims

1. A vehicle control system, characterized in that: The system includes: a CAN transceiver module, connected to the single-chip microcomputer and to the CAN bus, for transmitting and receiving data between the CAN bus and the single-chip microcomputer; a wheel speed sensor interface module, connected to the single-chip microcomputer and to the wheel speed sensor, for transmitting the wheel speed data detected by the wheel speed sensor to the single-chip microcomputer; a switch detection module, connected to the single-chip microcomputer and to the parking switch, for detecting the switch state of the parking switch and sending the switch state to the single-chip microcomputer; a power management module, connected between the single-chip microcomputer and the battery, for distributing and managing power; an acceleration sensor interface module, connected to the single-chip microcomputer and to the acceleration sensor, for transmitting the acceleration data detected by the acceleration sensor to the single-chip microcomputer; a gyroscope, connected to the single-chip microcomputer, for detecting changes in the posture of the vehicle and speed changes and acceleration changes in all directions, and transmit the change data to the single-chip microcomputer; a CDC current drive module, connected to the single-chip microcomputer and connected to the shock absorber, for adjusting the damping of the shock absorber according to a first drive signal provided by the single-chip microcomputer; a brushless motor drive module, connected to the single-chip microcomputer, for controlling the brushless motor to work according to a second drive signal provided by the single-chip microcomputer; an electromagnetic valve drive module, connected to the single-chip microcomputer, for controlling the electromagnetic valve to work according to a third drive signal provided by the single-chip microcomputer; a brushed motor drive module, connected to the single-chip microcomputer, for controlling the brushed motor to work according to a fourth drive signal provided by the single-chip microcomputer; a single-chip microcomputer, for executing a control algorithm and outputting corresponding first drive signal, second drive signal, third drive signal and fourth drive signal according to the received information.

2. The vehicle control system according to claim 1, characterized in that: The gyroscope is a 6-axis gyroscope.

3. The vehicle control system according to claim 1, characterized in that: The single chip microcomputer is specifically used to: analyze the wheel speed data, the change data and the acceleration data, calculate the target damping of the shock absorber and generate the first driving signal.

4. A vehicle, characterized in that: include: A vehicle control system as claimed in any one of claims 1 to 4.

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