Control system and vehicle

Abstract

A control system and a vehicle. The control system comprises a vehicle body domain controller and a power domain controller of a vehicle. The vehicle body domain controller is configured to connect to a power control device within a preset distance range. The vehicle body domain controller and the power domain controller are configured to be connected by means of a communication line. The vehicle body domain controller is used for transmitting, to the power domain controller and by means of the communication line, a power control signal of the power control device acquired by the vehicle body domain controller. The present disclosure can solve the problem of causing possible transmission errors of a throttle signal and a brake signal and thus causing vehicle safety problems due to the fact that all signals are transmitted by means of a CAN bus of a vehicle, and the safety performance of the vehicle can be greatly improved.

Description

Control systems and vehicles

[0001] This application claims priority to the Chinese patent application filed with the China Patent Office on December 21, 2023, with application number 202323515759.7 and invention name “Control System and Vehicle”, the entire contents of which are incorporated by reference into this application. Technical Field

[0002] The present disclosure generally relates to the field of vehicle technology, and more particularly to a control system and a vehicle. Background Art

[0003] The actual driving and use of a vehicle involves the coordination of numerous components. Therefore, in related technologies, vehicles are generally divided into multiple functional areas and then managed by controllers. This is done through a domain control architecture to manage vehicle components and signals. For example, a vehicle may include a body domain, a chassis domain, and a powertrain domain. Each domain contains its own controller, namely a body domain controller, a chassis domain controller, and a powertrain domain controller. The entire vehicle is controlled through the coordination and cooperation between the controllers in different domains.

[0004] In the above-mentioned process of cooperation and coordination through controllers in different domains, the driving signal and the braking signal are directly collected by the power domain controller through the CAN bus.

[0005] However, in the above process, for long-body vehicles, the accelerator pedal and brake pedal are located in the cab area, while the power domain controller is mostly located in the rear area of ​​the vehicle. Long-distance signal transmission is likely to result in signal errors, which in turn lead to vehicle safety problems.

[0006] Public content

[0007] In view of the above-mentioned defects or deficiencies in the prior art, it is desired to provide a control system and a vehicle that can solve the signal errors caused by the long-distance collection of drive signals and brake signals by the power domain controller, which in turn leads to vehicle safety problems, and can significantly improve the safety performance of the vehicle.

[0008] In a first aspect, a control system is provided, applied to a vehicle, the system comprising a body domain controller and a power domain controller of the vehicle;

[0009] The body domain controller is configured to connect to a power control device within a preset distance range;

[0010] The body domain controller and the power domain controller are connected by a communication line;

[0011] The body domain controller is used to transmit the power control signal of the power control device collected by the body domain controller to the power domain controller through the communication line.

[0012] In the present application, a control system applied to a vehicle is disclosed, and the above-mentioned control system includes a body domain controller and a power domain controller of the above-mentioned vehicle. Specifically, the above-mentioned body domain controller is configured to connect to a power control device within a preset distance range, and the configuration between the above-mentioned body domain controller and the above-mentioned power domain controller is a communication line connection; the above-mentioned body domain controller is used to transmit the power control signal of the power control device collected by the above-mentioned body domain controller to the above-mentioned power domain controller through the above-mentioned communication line. In this way, by using the body domain controller to collect the power control signal of the vehicle and transmitting the power control signal through the point-to-point communication line between the body domain controller and the power domain controller, the power control signal is transmitted to the power domain controller through the communication line, thereby avoiding the possibility of errors in the vehicle obtaining the power control signal and greatly improving the safety of the vehicle.

[0013] In a second aspect, a vehicle is provided, comprising the control system of the first aspect, wherein the control system is configured to transmit a power control signal of the vehicle and control the vehicle according to the power control signal.

[0014] Additional aspects and advantages of the present application will be given in part in the description below, and in part will become apparent from the description below, or will be learned through practice of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Other features, objects and advantages of the present application will become more apparent upon reading the detailed description of non-limiting embodiments made with reference to the following drawings:

[0016] FIG1 is a schematic diagram of a control system according to an embodiment of the present application;

[0017] FIG2 is a second schematic diagram of a control system provided in an embodiment of the present application;

[0018] FIG3 is a third schematic diagram of a control system provided in an embodiment of the present application. DETAILED DESCRIPTION

[0019] The present application will be further described in detail below with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described herein are merely for the purpose of explaining the relevant application and are not intended to limit the application. It should also be noted that, for ease of description, only the portions relevant to the application are shown in the accompanying drawings.

[0020] It should be noted that, unless there is any conflict, the embodiments and features in the embodiments of this application can be combined with each other.

[0021] The following describes the usage scenarios of this application:

[0022] In related technologies, a vehicle is generally divided into multiple parts, each of which is managed by a controller. Different controllers have different functions. Specifically, the body domain controller is used to control load drive and coordinate the activation of vehicle electrical appliances, etc.; the chassis domain controller is used to control vehicle driving-related systems, including the transmission system, driving system, steering system and electronic handbrake system; the power domain controller is used to collect accelerator pedal and brake pedal signals, etc.

[0023] In related technologies, the power domain controller is used to control the vehicle's movement and stopping. Based on this, the power domain controller directly collects the brake signal generated by the brake pedal and the throttle signal generated by the accelerator pedal; the chassis domain controller directly collects the signal generated by the electronic parking brake (EPB).

[0024] However, there is a problem in the above process. In fact, the accelerator pedal that generates the throttle signal and the brake pedal that generates the brake signal are located in the front part of the vehicle, while the power domain controller is located in the rear part of the vehicle. In terms of collection distance, the power domain controller is too far away, especially for some large vehicles (such as trucks), which is not conducive to signal collection.

[0025] Based on this, the present application proposes a control system and a vehicle that can solve the problem of the power domain controller collecting driving signals and braking signals through the CAN bus over long distances, which may lead to signal transmission errors in the transmission of throttle signals and brake signals, and then cause vehicle safety problems, and can greatly improve the safety performance of the vehicle.

[0026] The present application will be described in detail below with reference to the accompanying drawings and in combination with embodiments.

[0027] Figures 1 and 2 are schematic diagrams of a control system according to an embodiment of the present application. The method may be performed by the vehicle described above. As shown in Figures 1 and 2, the control system includes: a body domain controller and a power domain controller of the vehicle.

[0028] In an embodiment of the present application, the above-mentioned body domain controller is configured to be connected to a power control device within a preset distance range.

[0029] In an embodiment of the present application, the body domain controller and the power domain controller are connected by a communication line.

[0030] In an embodiment of the present application, the body domain controller is configured to transmit the power control signal of the power control device collected by the body domain controller to the power domain controller via the communication line.

[0031] In an embodiment of the present application, the body domain controller is used to collect the power control signal of the power control device in the vehicle and send the power control signal to the power domain controller through a communication connection with the power domain controller.

[0032] Based on this, the present application transmits the power control signal of the power control device collected by the body domain controller to the power domain controller through the communication line, which can solve the problem that the power domain controller collects the driving signal and braking signal through the CAN bus over a long distance, which may cause signal transmission errors in the transmission of throttle signals and brake signals, and can greatly improve the safety performance of the vehicle.

[0033] Optionally, in an embodiment of the present application, the body domain controller is located at the front end of the vehicle, and the power domain controller is located at the rear end of the vehicle.

[0034] Optionally, in an embodiment of the present application, the power control device includes at least one of an accelerator pedal device and a brake pedal device.

[0035] In an embodiment of the present application, the power control signal includes a driving signal and a braking signal of the vehicle.

[0036] It is understood that the driving signal may include: an accelerator signal; in one example, the driving signal may be an accelerator pedal signal. The braking signal may include: a brake signal; in one example, the brake signal may be a brake pedal signal.

[0037] Optionally, the power control signal includes at least one of the following: a drive start signal of the vehicle, a drive stop signal of the vehicle, a drive abnormality signal of the vehicle, a brake start signal of the vehicle, a brake stop signal of the vehicle and a brake abnormality signal of the vehicle.

[0038] It is understood that the driving start signal and the driving stop signal can be represented by the angle of the accelerator pedal, and correspondingly, the braking start signal and the braking stop signal can be represented by the angle of the brake pedal. Furthermore, the vehicle braking stop signal can also include a signal related to the electronic parking brake.

[0039] Based on this, further, the above-mentioned driving signal may include at least one of the following: the angle signal of the accelerator pedal, the fault signal of the accelerator pedal; the above-mentioned braking signal may include at least one of the following: the angle signal of the brake pedal, the fault signal of the brake pedal, the electronic handbrake trigger signal, the electronic handbrake closing signal, and the electronic handbrake abnormal signal.

[0040] It can be understood that, in the embodiment of the present application, the above-mentioned body domain controller has added the function of collecting vehicle power control signals compared to the related art. Generally, it can be seen from the above content that the collection function of the above-mentioned power control signals is completed by other controllers other than the body domain controller (for example, the throttle signal and the brake signal are collected by the power domain controller, and the electronic handbrake signal is collected by the chassis domain controller). However, since the other controllers are far away from the power control device of the vehicle. Based on this, in the embodiment of the present application, according to the principle of collecting signals nearby, by integrating the collection function of the above-mentioned power control signals into the body domain controller, the power control signal collection originally belonging to different domains can be completed by a single controller of the body domain controller, thereby reducing the cost of collecting signals (time cost, communication cost, hardware cost of connectors, etc.), and then, the body domain controller transmits the collected power control signal to the controller used to control the power control signal, thereby enhancing the accuracy of power control signal collection, while enhancing power control signal transmission and coordination.

[0041] In an embodiment of the present application, the power domain controller is configured to receive power control information sent by the power control device via the communication line, and control the vehicle according to the power control signal.

[0042] In an embodiment of the present application, the power domain controller and the body domain controller may be connected via a communication line, that is, signals may be directly transmitted point-to-point.

[0043] It can be understood that the above-mentioned point-to-point direct transmission signal means that the above-mentioned communication connection will not be connected to other domain controllers, and the communication connection is directly connected to the power domain controller and the body domain controller.

[0044] In an embodiment of the present application, the above-mentioned communication connection can be a hard-wired direct communication connection, such as a signal transmission line, or a bus transmission method, for example, a bus protocol between a power domain controller and a body domain controller. The embodiment of the present application does not limit this, and please refer to the subsequent description for details.

[0045] The control system applied to a vehicle provided in an embodiment of the present application includes a body domain controller and a power domain controller of the above-mentioned vehicle. Specifically, the above-mentioned body domain controller is used to collect the power control signal of the power control device in the vehicle (the above-mentioned power control signal includes the drive signal and brake signal of the above-mentioned vehicle), and sends the above-mentioned power control signal to the above-mentioned power domain controller through the communication connection with the above-mentioned power domain controller; the above-mentioned power domain controller is used to receive the above-mentioned power control signal through the above-mentioned communication connection, and control the vehicle according to the above-mentioned power control signal. In this way, by using the body domain controller to collect the power control signal of the vehicle and transmitting the power control signal through the point-to-point connection between the body domain controller and the power domain controller, the power control signal is transmitted to the power domain controller through a dedicated line, thereby avoiding the possibility of errors in the vehicle obtaining the power control signal and greatly improving the safety of the vehicle.

[0046] Optionally, in an embodiment of the present application, the communication line includes at least two of a general signal bus, a power control dedicated signal bus, and a hard-wired signal line.

[0047] Exemplarily, the power control dedicated signal bus and the hard-wired signal line are configured to be used only for transmitting the power control signal.

[0048] Exemplarily, in an embodiment of the present application, the accelerator pedal device is configured to be connected to the vehicle body domain controller via at least two signal acquisition lines; and / or, the brake pedal device is configured to be connected to the vehicle body domain controller via at least two signal acquisition lines.

[0049] Typically, the accelerator pedal and brake pedal devices are located on the front of the vehicle, close to the body domain controller. Therefore, the accelerator pedal and brake pedal devices are each connected to the body domain controller. Furthermore, the accelerator pedal device needs to be connected to the body domain controller via at least two signal acquisition lines, and / or the brake pedal device is configured to be connected to the body domain controller via at least two signal acquisition lines.

[0050] As shown in Figure 3, there are two signal lines corresponding to the accelerator pedal device, namely the signal line of accelerator pedal depth signal 1 and the signal line of accelerator pedal depth signal 2. Figure 3 also shows two signal lines corresponding to the brake pedal device, namely the signal line of brake pedal depth signal 1 and the signal line of brake pedal depth signal 2. The signal line of the accelerator pedal depth signal 1 is used to transmit the signal of the accelerator pedal 1, and the signal line of the accelerator pedal depth signal 2 is used to transmit the signal of the accelerator pedal 2; accordingly, the signal line of the brake pedal depth signal 1 is used to transmit the brake depth sensor signal 1, and the signal line of the brake pedal depth signal 2 is used to transmit the brake depth sensor signal 2. Afterwards, the power control signals of the accelerator pedal and the brake pedal are transmitted to the power domain controller through the body domain controller. The method of transmitting signals from the body domain controller to the power domain controller is described in detail in the subsequent description and will not be repeated here.

[0051] It is understandable that since the communication lines include at least two of the general signal bus, the power control dedicated signal bus, and the hard-wired signal line, the accelerator pedal device also requires at least two signal acquisition lines to connect to the vehicle body domain controller during signal transmission, thereby outputting at least two signals; and the brake pedal device also requires at least two signal acquisition lines to connect to the vehicle body domain controller during signal transmission, thereby outputting at least two signals.

[0052] In another embodiment of the present application, three specific implementation methods of the communication connection are also provided.

[0053] Optionally, in an embodiment of the present application, the universal signal bus and the power control dedicated signal bus are configured to transmit the power control signal through different bus protocols.

[0054] It is understandable that the universal signal bus needs to transmit all the signals of the entire vehicle. Therefore, when transmitting the power control signal through the communication signal bus, there will be a situation where transmission errors or delayed transmission are easy to occur, which will lead to the power control signal being unable to be received in time and the entire vehicle being unable to be powered in time. This is a safety hazard and can easily cause vehicle accidents. Therefore, the universal signal bus and the power control dedicated signal bus corresponding to the power control signal are configured with different bus protocols, which can stagger the universal signal bus and the above-mentioned power control dedicated signal bus, that is, the power control signal is transmitted through its own special bus protocol, thereby improving the accuracy and timeliness of the power control signal transmission.

[0055] In one example, the bus protocol may include any one of the CAN bus protocol, the LIN bus protocol, the FlexRay bus protocol, and the MOST bus protocol. The general signal bus and the power control dedicated signal bus are different bus protocols.

[0056] Exemplarily, the power control dedicated signal bus is used to transmit the power control signal of the vehicle through a communication protocol.

[0057] In one example, the power control dedicated signal bus may be a point-to-point CAN dedicated line between the vehicle body domain controller and the power domain controller, and the CAN dedicated line belongs to the driving behavior network CAN.

[0058] It is understandable that the above-mentioned power control dedicated signal bus is specifically used to transmit signals between the power domain controller and the body domain controller. It should be noted that, as can be seen from the above content, vehicles with domain control architecture (that is, vehicles divided into multiple domain controls) generally have a CAN bus (that is, the second protocol transmission channel below) for transmitting signals between different domains, while the CAN dedicated line of the above-mentioned power control dedicated signal bus is a separate CAN dedicated line that is dedicated to the CAN dedicated line between the body domain controller and the power domain controller.

[0059] Furthermore, the above-mentioned CAN dedicated line can be implemented by modifying the relevant protocol algorithm of the vehicle CAN bus without changing the vehicle hardware.

[0060] Optionally, the control system further includes a first transceiver and a second transceiver.

[0061] Exemplarily, the first transceiver is used to transmit the power control signal of the body domain controller, and the second transceiver is used to transmit the control signal of the power domain controller.

[0062] Exemplarily, the first transceiver and the second transceiver are respectively connected to two sides of the communication connection.

[0063] It can be understood that the first transceiver and the second transceiver can be used to transmit signals on both sides of the communication connection.

[0064] For example, if the power control signal is an accelerator activation signal, the accelerator pedal is depressed and the accelerator pedal angle is X°, the body domain controller will collect the analog signal of the accelerator pedal angle and output the pedal depth corresponding to the accelerator pedal angle as a percentage P. The body domain controller sends the accelerator depth signal to the power domain controller via the aforementioned CAN line (also known as the power control dedicated signal bus), allowing the power domain controller to control the vehicle.

[0065] Assuming the power control signal is a brake activation signal, the brake pedal is depressed and the brake pedal angle is Y°. The body domain controller collects the analog signal of this brake pedal angle and outputs the pedal depth corresponding to the brake pedal angle as a percentage Q. The body domain controller sends the throttle depth signal to the power domain controller via the CAN dedicated line, allowing the power domain controller to control the vehicle.

[0066] Assume that the accelerator pedal fails. The accelerator pedal is generally a dual-channel type. The depth signal of the accelerator pedal one channel needs to be synchronized with the depth signal of the accelerator pedal two channels. If the specific synchronization degree is not met, the accelerator pedal is considered to be faulty. The body domain controller collects the abnormal signal, and then the body domain controller sends a fault message of the accelerator pedal to the power domain controller so that the power domain controller can control the vehicle.

[0067] Assuming a brake pedal fault, the brake pedal depth signal is determined to be within a specific range. If it exceeds the range or either the brake pedal depth signal or the brake pedal switch signal is disconnected, the pedal signal is abnormal. The body domain controller collects the abnormal signal and then sends a pedal abnormality message to the power domain controller so that the power domain controller can control the vehicle.

[0068] In this way, since the protocol transmission channel does not cause excessive increase in hardware costs, safer vehicle control and vehicle driving can be achieved in a very low-cost manner.

[0069] Optionally, in an embodiment of the present application, the hard-wired signal line is configured to transmit the power control signal based on a pulse width modulation signal.

[0070] Exemplarily, the body domain controller and the power domain controller are connected via the hard-wired signal line.

[0071] Exemplarily, the signal transmission line is used to transmit the power control signal based on a pulse width modulation signal. In one example, the power control signal transmitted based on a pulse width modulation signal may be a first pulse width modulation signal (PWM signal), that is, the first pulse width modulation signal is used to indicate the power control signal.

[0072] It can be understood from the above content that the power control signal is divided into multiple different power control signals, and different power control signals correspond to different first PWM signals. Therefore, different power control signals can be represented by different PWM signals.

[0073] In an example, the first PWM signal may be a duty cycle signal with a specific amplitude and a specific frequency. For example, the first PWM signal may be a duty cycle signal with an amplitude of 12V and a frequency of 1kHz.

[0074] For example, assuming that the power control signal is an accelerator start signal, the accelerator pedal is pressed and the accelerator pedal angle is X°, a PWM with a duty cycle α1 can be sent to the power domain controller via the above-mentioned signal transmission line to facilitate the power domain controller to control the vehicle.

[0075] Assuming that the power control signal is a brake start signal, the brake pedal is pressed and the brake pedal angle is Y°, a PWM with a duty cycle α2 can be sent to the power domain controller through the above-mentioned signal transmission line to facilitate the power domain controller to control the vehicle.

[0076] Assuming that the accelerator pedal angle and the brake pedal angle are both 0°, a PWM with a duty cycle of α3 can be sent to the power domain controller through the above-mentioned signal transmission line, so that the power domain controller can control the vehicle.

[0077] Assuming that the accelerator pedal fails, a PWM with a duty cycle α4 can be sent to the power domain controller through the above-mentioned signal transmission line, so that the power domain controller can control the vehicle.

[0078] Assuming that the brake pedal fails, a PWM with a duty cycle of α5 can be sent to the power domain controller through the above-mentioned signal transmission line, so that the power domain controller can control the vehicle.

[0079] Optionally, in the third implementation of the above-mentioned communication connection, the above-mentioned communication connection includes the above-mentioned signal transmission line and the above-mentioned power control dedicated signal bus.

[0080] Exemplarily, in a case where the power control signal transmitted by the power control dedicated signal bus lacks a signal frame, the communication connection includes the signal transmission line and the power control dedicated signal bus.

[0081] Exemplarily, the first pulse width modulation signal transmitted by the signal transmission line is a verification signal of the power control signal transmitted by the communication protocol.

[0082] Exemplarily, the power domain controller is used to compare the first pulse width modulation signal with the power control signal, and when the first pulse width modulation signal matches the power control signal, determine the throttle state of the vehicle and / or the braking state of the vehicle.

[0083] It is understandable that when the communication connection includes both a signal transmission line and a power control dedicated signal bus, the first pulse width modulation signal of the signal transmission line and the power control signal transmitted by the first communication protocol can also be verified with each other.

[0084] Optionally, the first communication protocol can be verified by transmitting pedal depth information corresponding to the power control signal and a first pulse width modulation signal of the signal transmission line.

[0085] Exemplarily, the pedal depth information corresponding to the power control signal and the first pulse width modulation signal corresponding to the power control signal are used to indicate the driving signal.

[0086] Furthermore, the above pedal depth information includes: driving pedal depth information and brake pedal depth information.

[0087] In one example, the driving pedal depth information may be accelerator pedal depth information, and the brake pedal depth information may be brake pedal depth information.

[0088] Exemplarily, the body domain controller is configured to send the driving pedal depth information to the power domain controller via the power control dedicated signal bus, and to send the first pulse width modulation signal to the power domain controller via the signal transmission line.

[0089] Exemplarily, the power domain controller is configured to receive the pedal depth information and the first pulse width modulation signal, and determine that the vehicle executes the drive signal when the first depth information and the first pulse width modulation signal match.

[0090] For example, assuming that the power control signal is a throttle start signal, the accelerator pedal is depressed, and the accelerator pedal angle is X°, the body domain collects the analog signal of the accelerator pedal angle and sends the pedal depth corresponding to the accelerator pedal angle according to the output percentage P. The body domain controller sends the throttle depth signal to the power domain controller via the above-mentioned CAN dedicated line (that is, the above-mentioned power control dedicated signal bus). At the same time, a PWM with a duty cycle of α1 is sent to the power domain controller via the above-mentioned signal transmission line. The power domain controller compares the throttle depth signal with α1 to determine whether they match and thus verify each other. If they match, the power domain controller controls the vehicle to execute the throttle start.

[0091] Assume the power control signal is a brake activation signal. The brake pedal is depressed at a brake pedal angle of Y°. The body domain controller (BDC) collects the analog signal representing this brake pedal angle and transmits the pedal depth corresponding to the brake pedal angle as a percentage Q. The BDC then transmits an accelerator pedal depth signal to the power domain controller via the CAN dedicated line. Simultaneously, a PWM signal with a duty cycle of α2 is transmitted to the power domain controller via the aforementioned signal transmission line. The power domain controller compares the accelerator pedal depth signal with α2 to determine if they match, thereby verifying their mutual compliance and enabling the BDC to control the vehicle's brake activation.

[0092] Assume the accelerator pedal is faulty. Accelerator pedals are typically dual-path, with the first-path depth signal required to be synchronized with the second-path depth signal. If a specific degree of synchronization is not achieved, the accelerator pedal is considered faulty. The body domain controller detects this abnormal signal and then sends an accelerator pedal fault message to the power domain controller. Simultaneously, a PWM signal with a duty cycle of α4 can be sent to the power domain controller via the aforementioned signal transmission line. The power domain controller compares the accelerator depth signal with α4 to determine if they match. This mutual verification allows the power domain controller to control the vehicle and promptly notify the user of the accelerator pedal fault.

[0093] Assuming a brake pedal fault, the system checks whether the brake pedal depth signal is within a specified range. If it is out of range or if either the brake pedal depth signal or the brake pedal switch signal is disconnected, the pedal signal is abnormal. The body domain controller detects this abnormal signal and then sends a pedal abnormality message to the power domain controller. Simultaneously, a PWM with a duty cycle of α5 is transmitted to the power domain controller via the aforementioned signal transmission line. The power domain controller compares the throttle depth signal with α5 to determine if they match. This mutual verification allows the power domain controller to control the vehicle and promptly notify the user of a brake pedal fault.

[0094] In this way, when transmitting signals, verification can be performed between the signal transmission line and the power control dedicated signal bus through the combination of the two, thereby increasing the reliability, comprehensive safety and anti-interference ability of the vehicle's power control signal transmission.

[0095] Optionally, in the embodiment of the present application, in addition to the above three connection modes, a fourth connection mode may be included, that is, the control system includes a power control dedicated signal bus, a signal transmission line and a universal signal bus. Among them, the universal signal bus may be a CAN bus.

[0096] Exemplarily, the universal signal bus includes a serial communication protocol bus of the vehicle.

[0097] Exemplarily, when neither the power control dedicated signal bus of the above-mentioned vehicle nor the signal transmission line of the above-mentioned vehicle can transmit the power control signal, the above-mentioned body domain controller is used to transmit the power control signal of the vehicle through the above-mentioned universal signal bus.

[0098] As described above, the above-mentioned power control dedicated signal bus is used to transmit the power control signal of the above-mentioned vehicle through the communication protocol between the above-mentioned power domain controller and the above-mentioned body domain controller, and the above-mentioned signal transmission line is used to transmit the first pulse width modulation signal, and the above-mentioned first pulse width modulation signal is used to indicate the power control signal.

[0099] In this way, through the combination of the CAN bus, the signal transmission line and the protocol transmission channel, verification can be performed between them. In this way, the reliability of the communication signal is greatly increased, the overall security is higher, and the anti-interference ability is also greatly improved accordingly.

[0100] It can be understood that the above four communication connection methods are to collect different power control signals by selecting different communication combinations to ensure the safety of throttle and brake signal transmission and avoid safety hazards caused by abnormal communication of a single CAN bus.

[0101] Optionally, when the above four communication connection modes are all invalid, the above vehicle can automatically start the safety mode to ensure the safety of people inside the vehicle.

[0102] Exemplarily, in the event that the communication connection between the body domain controller and the power domain controller is interrupted, the body domain controller is configured to determine that the communication connection is damaged and activate the safety mode of the vehicle;

[0103] The above-mentioned safety mode includes any one of the following items: reducing the speed of the above-mentioned vehicle to within a preset speed range, reducing the speed of the vehicle to zero within a preset time, and maintaining the vehicle state of the vehicle in a stationary state.

[0104] It is understood that the vehicle may be in a driving state or in a stationary state. When the vehicle is in a driving state, the safety mode of the vehicle may be to change the driving state to a low-speed state or a stationary state. Specifically, the vehicle may be changed to a low-speed state by reducing the speed of the vehicle to within a preset speed range, or to a stationary state by reducing the speed of the vehicle to zero within a preset time period. When the vehicle is in a stationary state, the safety mode is to maintain the vehicle in a stationary state.

[0105] Optionally, in an embodiment of the present application, the power domain controller is configured to: use the received power control signal as a target power control signal to control the vehicle according to the communication line priority.

[0106] Exemplarily, the priorities of the communication lines are from high to low: the power control dedicated signal bus, the hard-wired signal line, and the universal signal bus.

[0107] It is understood that in actual applications, the order of application of the above-mentioned communication lines follows a certain priority. That is, if a vehicle is likely equipped with all three communication lines, namely the power control dedicated signal bus, the hard-wired signal line, and the universal signal bus, the power control dedicated signal bus will be used first, followed by the hard-wired signal line, and finally the universal signal bus.

[0108] Optionally, in the embodiment of the present application, the distance between the power control device and the power domain controller exceeds the preset distance range.

[0109] Exemplarily, the distance between the power control device and the vehicle body domain controller is smaller than the preset distance range.

[0110] For example, the above-mentioned preset distance range can be customized by the user or preset by the control system, and the embodiments of the present application are not limited to this.

[0111] For example, the preset distance range can be matched to the distance of common vehicle models on the market. For example, the preset distance range can be set to the distance range between the power domain controller and the body domain controller corresponding to a truck.

[0112] It can be understood that, in one example, when the above-mentioned body domain controller is used to collect power control signals, the premise of the body domain controller serving as the central controller of the vehicle power control signal is that the power domain controller is too far away from the pedal that generates the throttle signal and the pedal that generates the brake signal, and signal transmission is prone to problems (for example, the distance between the power domain controller and the power control device is greater than a preset threshold). Based on this, the premise of using the above-mentioned communication connection may include: the distance between the power domain controller and the above-mentioned body domain controller is greater than a predetermined threshold.

[0113] Furthermore, since the distance between the power domain controller and the power control device is greater than the preset distance range, a body domain controller whose distance to the power control device is less than the preset distance range is required to serve as an acquisition controller (i.e., the above-mentioned central controller). That is, the body domain controller serves as an acquisition controller to first collect the power control signal of the power control device nearby, and then transmits the power control signal to the power domain controller through the communication connection between the body domain controller and the power domain controller.

[0114] An embodiment of the present application also provides a vehicle, which includes the above-mentioned control system, and the above-mentioned control system is used to transmit the power control signal of the above-mentioned vehicle between the body domain controller of the above-mentioned vehicle and the power domain controller of the above-mentioned vehicle and control the vehicle according to the power control signal.

[0115] It should be noted that although the functions of the modules in this application are described in a specific order in the drawings, this does not require or imply that these operations must be performed in this specific order, or that all the shown operations must be performed to achieve the desired results.

[0116] It should be understood that the various units described in the control system correspond to the various functions in the modules described in the accompanying drawings. Therefore, the operations and features described above for the method are also applicable to the control system and the units contained therein, and will not be repeated here. The control system can be pre-implemented in a browser or other security application of a computer device, or can be loaded into a browser or its security application of a computer device by downloading or other means. The corresponding units in the control system can cooperate with the units in the computer device to implement the solutions of the embodiments of the present application.

[0117] The several modules or units mentioned in the detailed description above are not necessarily divided. In fact, according to the present disclosure, the features and functions of two or more modules or units described above can be embodied in one module or unit. Conversely, the features and functions of one module or unit described above can be further divided into multiple modules or units to be embodied.

[0118] It should be noted that for details not disclosed in the control system of the embodiments of the present application, please refer to the details disclosed in the above embodiments of the present application, which will not be repeated here.

[0119] The units or modules described in the embodiments of this application may be implemented in software or hardware. The units or modules described may also be provided in a processor. For example, a control system may be described as comprising a first receiving module, a second receiving module, and a transmitting module. The names of these units or modules do not, in certain circumstances, limit the units or modules themselves.

[0120] The above description is merely a preferred embodiment of the present application and an illustration of the technical principles employed. Those skilled in the art should understand that the scope of disclosure in this application is not limited to the technical solutions formed by a specific combination of the above-mentioned technical features, but also encompasses other technical solutions formed by any combination of the above-mentioned technical features or their equivalents without departing from the aforementioned disclosed concepts. For example, a technical solution formed by replacing the above-mentioned features with (but not limited to) technical features with similar functions disclosed in this application.

Claims

1. A control system, characterized in that: Applied to a vehicle, the control system includes a body domain controller and a power domain controller of the vehicle; The body domain controller is configured to connect to a power control device within a preset distance range; The body domain controller and the power domain controller are configured to be connected by a communication line; The body domain controller is used to transmit the power control signal of the power control device collected by the body domain controller to the power domain controller through the communication line.

2. The control system according to claim 1, characterized in that: The communication line includes: Universal signal bus; A power control dedicated signal bus; and At least two of the hardwired signal lines; Wherein, the power control dedicated signal bus and the hard-wire signal line are configured to be used only for transmitting the power control signal.

3. The control system according to claim 2, characterized in that: The universal signal bus and the power control dedicated signal bus are configured to transmit the power control signal through different bus protocols.

4. The control system according to claim 2 or 3, characterized in that: The hardwired signal line is configured to transmit the power control signal based on a pulse width modulated signal.

5. The control system according to any one of claims 1 to 4, characterized in that: The power domain controller is configured as follows: using the received power control signal as a target power control signal to control the vehicle according to the communication line priority; Among them, the priorities of the communication lines from high to low are: the power control dedicated signal bus, the hard-wire signal line, and the universal signal bus.

6. The control system according to any one of claims 1 to 5, characterized in that: The distance between the power control device and the power domain controller exceeds the preset distance range.

7. The control system according to any one of claims 1 to 6, characterized in that: The body domain controller is located at the front section of the vehicle; The power domain controller is located at the rear section of the vehicle.

8. The control system according to any one of claims 1 to 7, characterized in that: The power control device includes at least one of an accelerator pedal device and a brake pedal device.

9. The control system according to claim 8, characterized in that: The accelerator pedal device is configured to be connected to the vehicle body domain controller via at least two signal acquisition lines; and / or, The brake pedal device is configured to be connected to the vehicle body domain controller via at least two signal acquisition lines.

10. A vehicle, comprising the control system according to any one of claims 1 to 9, wherein the control system is used to transmit a power control signal of the vehicle between a body domain controller of the vehicle and a power domain controller of the vehicle and control the vehicle according to the power control signal.

Images