Vehicle control method and system and vehicle

Abstract

The embodiment of the invention provides a vehicle control method and system and a vehicle, and can control the state of a brake lamp switch under the condition that the brake lamp switch is canceled and other hardware is not newly added, so that the cost of the whole vehicle is reduced, and the situation that the brake lamp switch fails to work can be avoided. The problem that the on-off state of the brake lamp cannot be controlled due to the fact that whether the brake pedal is stepped down or not cannot be accurately detected is solved. The vehicle control method comprises the steps that a brake pedal state signal sent by a stroke sensor is received, and the brake pedal state signal is generated when the stroke sensor detects the brake stroke of a brake pedal; and the brake pedal state signal is sent to a vehicle body domain controller through a field bus, so that the vehicle body domain controller controls the on-off state of a brake lamp according to the brake pedal state signal.

Description

[Technical field]

[0001] The embodiments of the present application relate to the field of vehicle technology, and in particular, to a vehicle control method, system and vehicle. [Background technology]

[0002] In the related art, a brake light switch is installed on the brake bracket of the vehicle. The brake light switch has two signals. When the brake pedal is not pressed, the brake switch contact contacts the pedal arm, one is normally open and the other is normally closed. When the brake pedal is pressed, the pedal arm separates from the brake switch contact, and the two signals are reversed. The body domain controller (BDC) determines whether the brake pedal is pressed by collecting one signal (normally open loop), and then controls the on and off state of the brake light. However, there are two problems in the above control strategy: first, the cost of the whole vehicle is relatively high because the on and off control of the brake light is realized by installing a brake light switch; second, once the brake light switch fails, the BDC may not be able to accurately determine whether the brake pedal is pressed based on the collected signal, and thus cannot accurately control the on and off state of the brake light. [Summary of the invention]

[0003] The embodiments of the present application provide a vehicle control method, system and vehicle, which can control the state of the brake light switch without eliminating the brake light switch and adding other hardware, thereby reducing the cost of the entire vehicle and avoiding the problem of being unable to control the state of the brake light switch due to the inability to accurately detect whether the brake pedal is pressed when the brake light switch fails.

[0004] In a first aspect, an embodiment of the present application provides a vehicle control method, the method comprising:

[0005] receiving a brake pedal state signal sent by a travel sensor in a wire control brake system, wherein the brake pedal state signal is generated by the travel sensor detecting a brake stroke of the brake pedal, wherein when the brake stroke is less than or equal to 0, the brake pedal state signal indicates that the brake pedal is not depressed; and when the brake stroke is greater than 0, the brake pedal state signal indicates that the brake pedal is depressed;

[0006] The brake pedal status signal is sent to the vehicle body domain controller through the field bus, so that the vehicle body domain controller controls the on and off state of the brake light according to the brake pedal status signal.

[0007] In the embodiment of the present application, the existing travel sensor in the wire control brake system is used to detect the brake pedal travel, obtain the brake pedal status signal, and then send the brake pedal status signal to the body domain controller through the field bus. When the brake pedal status signal indicates that the brake pedal is stepped on, the body domain controller can control the brake light to turn on; when the brake pedal status signal indicates that the brake pedal is not stepped on, the body domain controller can control the brake light to turn off. In other words, the control of the brake light switch status can be achieved without removing the brake light switch and adding other hardware, which not only avoids the problem of being unable to control the brake light switch status due to the inability to accurately detect whether the brake pedal is stepped on in the event of a brake light switch failure, but also reduces the cost of the entire vehicle.

[0008] Optionally, the brake pedal state signal indicates that the brake pedal is depressed, and after receiving the brake pedal state signal sent by the travel sensor, the method further includes:

[0009] The brake pedal status signal is sent to the vehicle controller via the field bus, so that the vehicle controller applies high voltage to the vehicle according to the brake pedal status signal and ignition operation.

[0010] In an embodiment of the present application, a brake pedal status signal collected by a stroke sensor existing in a brake-by-wire system is sent to a vehicle controller via a field bus; when the brake pedal status signal indicates that the brake pedal is depressed and an ignition operation by a user is detected, high voltage is applied to the vehicle, thereby avoiding the problem of being unable to apply high voltage to the vehicle due to the inability to accurately detect whether the brake pedal is depressed in the event of a brake light switch failure.

[0011] Optionally, the brake pedal state signal indicates that the brake pedal is depressed, and after receiving the brake pedal state signal sent by the travel sensor, the method further includes:

[0012] The brake pedal state signal is sent to a vehicle controller via the field bus, so that the vehicle controller controls the vehicle to brake according to the brake pedal state signal and a throttle opening signal indicating that the accelerator is depressed.

[0013] In the embodiment of the present application, the brake pedal status signal collected by the existing stroke sensor in the wire control brake system is sent to the vehicle controller through the field bus. When the brake pedal status signal indicates that the brake pedal is pressed and it is detected that the accelerator is pressed, the vehicle will be controlled to brake, thereby avoiding the problem of being unable to control the vehicle to brake first due to the inability to accurately detect whether the brake pedal is pressed in the event of a brake light switch failure, thereby ensuring user safety.

[0014] Optionally, the brake pedal state signal indicates that the brake pedal is depressed, and after receiving the brake pedal state signal sent by the travel sensor, the method further includes:

[0015] The brake pedal state signal is sent to a vehicle controller via the field bus, so that the vehicle controller controls the vehicle to switch from a current gear to the target gear according to the brake pedal state signal and a shift signal indicating a gear to be switched to.

[0016] In an embodiment of the present application, a brake pedal status signal collected by an existing travel sensor in a brake-by-wire system is sent to a vehicle controller via a field bus; when the brake pedal status signal indicates that the brake pedal is depressed and it is detected that the user needs to shift gears, the vehicle is controlled to switch to the target gear, thereby avoiding the problem of being unable to control the vehicle to shift gears due to the inability to accurately detect whether the brake pedal is depressed in the event of a brake light switch failure.

[0017] Optionally, the brake pedal state signal indicates that the brake pedal is depressed, and after receiving the brake pedal state signal sent by the travel sensor, the method further includes:

[0018] The brake pedal status signal is sent to a vehicle controller via the field bus, so that the vehicle controller controls the vehicle to brake based on an auxiliary parking function according to the brake pedal status signal.

[0019] In an embodiment of the present application, a brake pedal status signal collected by an existing travel sensor in a brake-by-wire system is sent to a vehicle controller via a field bus; when the brake pedal status signal indicates that the brake pedal is pressed, the vehicle is controlled to brake based on the assisted parking function, thereby avoiding the problem that the vehicle's assisted parking function cannot be normally enabled due to the inability to accurately detect whether the brake pedal is pressed in the event of a brake light switch failure.

[0020] Optionally, the brake pedal state signal indicates that the brake pedal is depressed, and after receiving the brake pedal state signal sent by the travel sensor, the method further includes:

[0021] The brake pedal state signal is sent to the parking brake via the field bus, so that the parking brake controls the vehicle to release the handbrake according to the brake pedal state signal and a handbrake release signal indicating the manual release of the handbrake.

[0022] In the embodiment of the present application, the brake pedal status signal collected by the existing stroke sensor in the wire control brake system is sent to the parking brake through the field bus. When the brake pedal status signal indicates that the brake pedal is pressed and it is detected that the user needs to release the handbrake, the handbrake of the vehicle will be released, thereby avoiding the problem of being unable to release the handbrake due to the inability to accurately detect whether the brake pedal is pressed in the event of a brake light switch failure.

[0023] Optionally, the field bus is a CAN bus.

[0024] In the embodiment of the present application, the brake pedal status signal can be reliably and quickly sent to the corresponding controller based on the CAN bus, so that the controller can act reliably and quickly.

[0025] Optionally, the brake pedal status signal is represented based on a target base 1 when the brake pedal is pressed, and the brake pedal status signal is represented based on a target base 0 when the brake pedal is not pressed.

[0026] In the embodiment of the present application, 1 and 0 in the target base are used to conveniently represent the two states of the brake pedal being pressed / not pressed, which also facilitates the rapid transmission and analysis of signals.

[0027] In a second aspect, an embodiment of the present application provides a vehicle control system, the vehicle control system comprising a travel sensor, a wire control brake, and a body domain controller connected in sequence;

[0028] The travel sensor is used to detect the braking travel of the brake pedal and generate a brake pedal state signal according to the braking travel, wherein when the braking travel is less than or equal to 0, the brake pedal state signal indicates that the brake pedal is not depressed; when the braking travel is greater than 0, the brake pedal state signal indicates that the brake pedal is depressed;

[0029] The wire-controlled brake is used to send the brake pedal status signal to the vehicle body domain controller via the field bus;

[0030] The vehicle body domain controller is used to control the on and off state of the brake light according to the brake pedal state signal.

[0031] Optionally, the brake pedal state signal indicates that the brake pedal is depressed, and the vehicle control system further includes a vehicle controller, and the vehicle controller is connected to the wire control brake;

[0032] The wire-controlled brake is further used to send the brake pedal state signal to the vehicle controller via a field bus;

[0033] The vehicle controller is used to apply high voltage to the vehicle according to the brake pedal status signal and ignition operation.

[0034] Optionally, the brake pedal state signal indicates that the brake pedal is depressed, and the vehicle control system further includes a vehicle controller, and the vehicle controller is connected to the wire control brake;

[0035] The wire-controlled brake is further used to send the brake pedal state signal to the vehicle controller via a field bus;

[0036] The vehicle controller is used to control the vehicle to brake according to the brake pedal state signal and the throttle opening signal indicating that the accelerator is depressed.

[0037] Optionally, the brake pedal state signal indicates that the brake pedal is depressed, and the vehicle control system further includes a vehicle controller, and the vehicle controller is connected to the wire control brake;

[0038] The wire-controlled brake is further used to send the brake pedal state signal to the vehicle controller via a field bus;

[0039] The vehicle controller is used to control the vehicle to switch from the current gear to the target gear according to the brake pedal state signal and the shift signal representing the target gear to be switched to.

[0040] Optionally, the brake pedal state signal indicates that the brake pedal is depressed, and the vehicle control system further includes a vehicle controller, and the vehicle controller is connected to the wire control brake;

[0041] The wire-controlled brake is further used to send the brake pedal state signal to the vehicle controller via a field bus;

[0042] The vehicle controller is used to control the vehicle to brake based on the auxiliary parking function according to the brake pedal state signal.

[0043] Optionally, the brake pedal state signal indicates that the brake pedal is depressed, and the vehicle control system further comprises a parking brake, and the parking brake is connected to the brake-by-wire control;

[0044] The wire-controlled brake is further used to send the brake pedal state signal to the vehicle controller via a field bus;

[0045] The parking brake is used to control the vehicle to release the handbrake according to the brake pedal state signal and a handbrake release signal indicating a manual release of the handbrake.

[0046] Optionally, the field bus is a CAN bus.

[0047] Optionally, the brake pedal status signal is represented based on a target base 1 when the brake pedal is pressed, and the brake pedal status signal is represented based on a target base 0 when the brake pedal is not pressed.

[0048] In a third aspect, an embodiment of the present application provides a vehicle, comprising a vehicle control system as in any embodiment of the second aspect.

[0049] It should be understood that the second to third aspects of the embodiments of the present invention are consistent with the technical solutions of the first aspect of the embodiments of the present invention, and the beneficial effects achieved by each aspect and the corresponding feasible implementation methods are similar and will not be described in detail.

Brief Description of the Drawings

[0050] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this specification. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0051] Figure 1 A schematic diagram of a vehicle control method provided in an embodiment of the present application;

[0052] Figure 2 A schematic diagram of a vehicle control method provided in an embodiment of the present application;

[0053] Figure 3 A schematic diagram of a vehicle control method provided in an embodiment of the present application;

[0054] Figure 4 A schematic diagram of a vehicle control method provided in an embodiment of the present application;

[0055] Figure 5 A schematic diagram of a vehicle control method provided in an embodiment of the present application;

[0056] Figure 6 A schematic diagram of a vehicle control method provided in an embodiment of the present application;

[0057] Figure 7 A schematic diagram of the structure of a vehicle control system provided in an embodiment of the present application;

[0058] Figure 8 A schematic diagram of the structure of a vehicle control system provided in an embodiment of the present application;

[0059] Fig. 9 A schematic diagram of the structure of a vehicle control system provided in an embodiment of the present application;

[0060] Fig.10 A schematic diagram of the structure of a vehicle provided in an embodiment of the present application. [Specific implementation method]

[0061] In order to better understand the technical solution of this specification, the embodiments of the present application are described in detail below with reference to the accompanying drawings.

[0062] It should be clear that the described embodiments are only part of the embodiments of this specification, not all of the embodiments. Based on the embodiments in this specification, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this specification.

[0063] The terms used in the embodiments of the present application are only for the purpose of describing specific embodiments, and are not intended to limit this specification. The singular forms of "a", "said" and "the" used in the embodiments of the present application and the appended claims are also intended to include plural forms, unless the context clearly indicates other meanings.

[0064] The inventors of the present application have discovered through research that obtaining the brake pedal status through a brake light switch installed on a brake bracket, firstly, increases the hardware of the entire vehicle and the corresponding wiring, thereby increasing the cost of the entire vehicle; secondly, once the brake light switch fails, the BDC may not be able to accurately determine whether the brake pedal is pressed based on the collected brake pedal status signal, thereby failing to accurately control the on and off status of the brake light.

[0065] In view of this, an embodiment of the present application provides a vehicle control method, in which the vehicle body domain controller uses the brake pedal state signal collected by the travel sensor in the existing wire control brake system to control the on and off state of the brake light. In other words, the control of the brake light switch state can be achieved without removing the brake light switch and adding other hardware, which not only reduces the cost of the whole vehicle, but also avoids the problem of being unable to control the brake light switch state due to the inability to accurately detect whether the brake pedal is pressed when the brake light switch fails.

[0066] The following is an introduction to the technical solution provided by the embodiment of the present application in conjunction with the accompanying drawings. Figure 1 , an embodiment of the present application provides a vehicle control method, which is applied to a wire-controlled brake in a wire-controlled brake system. The process of the method is described as follows:

[0067] Step 101: Receive a brake pedal status signal sent by a travel sensor in a brake-by-wire system.

[0068] In the embodiment of the present application, for a vehicle equipped with a brake-by-wire system, a stroke sensor is already configured inside the brake-by-wire system, and the stroke sensor can be used to detect the braking stroke of the brake pedal and generate a corresponding brake pedal status signal. When it is detected that the braking stroke of the brake pedal is less than or equal to 0, the brake pedal status signal generated by the stroke sensor indicates that the brake pedal is not pressed. At this time, the brake pedal can be indicated as not pressed based on 0 in the target system. For example, the brake pedal is not pressed based on hexadecimal 0x0; when the braking stroke of the detected brake pedal is greater than 0, the brake pedal status signal generated by the stroke sensor indicates that the brake pedal is pressed. For example, the brake pedal is indicated as being pressed based on hexadecimal 0x1. There is no special restriction on the target system here.

[0069] After generating a brake pedal state signal, the travel sensor in the brake-by-wire system may send the brake pedal state signal to the brake-by-wire system so that the brake-by-wire system may perform subsequent processing based on the brake pedal state signal.

[0070] Step 102: Send the brake pedal status signal to the vehicle body domain controller via the field bus, so that the vehicle body domain controller controls the on / off state of the brake light according to the brake pedal status signal.

[0071] In the embodiment of the present application, after receiving the brake pedal status signal, the wire control brake needs to complete the relevant control strategy in the wire control brake system based on the brake pedal status signal, for example, whether the brake needs to be triggered based on the brake pedal status signal, or whether the anti-lock function or the anti-skid function needs to be triggered together with other collected signals, etc., which will not be described in detail here. On the other hand, the wire control brake can also send the brake pedal status signal to the BDC through the field bus. That is, the brake pedal status signal of the BDC comes from the wire control brake system, not the brake light switch. For example, the field bus can use the controller area network (Controller Area Network, CAN), so as to ensure that the brake pedal status signal is more reliable and faster during the transmission process. If the brake pedal status signal indicates that the brake pedal is stepped on, the BDC is controlled to turn on the brake light after receiving the brake pedal status signal, that is, it is in a constant light state; if the brake pedal status signal indicates that the brake pedal is not stepped on, the BDC is controlled to turn off the brake light after receiving the brake pedal status signal, that is, it is in a constant off state.

[0072] In some embodiments, in order to ensure the user's driving safety, when the vehicle is high-voltage, the user is usually required to step on the brake pedal. If the vehicle controller cannot accurately determine whether the brake pedal is stepped on due to a brake light switch failure, the vehicle cannot be high-voltage, resulting in the vehicle being unable to start normally.

[0073] See also Figure 2 , is a flow chart of a vehicle control method provided in an embodiment of the present application. The method can be implemented by executing step 101 and step 103:

[0074] Step 101: Receive a brake pedal status signal sent by a travel sensor in a brake-by-wire system.

[0075] Step 103: Send the brake pedal status signal to the vehicle controller via the field bus, so that the vehicle controller applies high voltage to the vehicle according to the brake pedal status signal and the ignition operation.

[0076] In the embodiment of the present application, after receiving the brake pedal status signal, the wire control brake can send the brake pedal status signal to the vehicle controller through the field bus. That is, the brake pedal status signal of the vehicle controller comes from the wire control brake system, not the brake light switch. For example, the field bus can be a CAN bus. When the brake pedal status signal indicates that the brake pedal is pressed, and the user's ignition operation is detected, the vehicle will be high-voltage, thereby avoiding the problem of being unable to apply high voltage to the vehicle due to the inability to accurately detect whether the brake pedal is pressed in the event of a brake light switch failure.

[0077] In some embodiments, to ensure the user's driving safety, if it is detected that the user presses the accelerator and brake at the same time, the vehicle controller will prioritize the braking action. If the vehicle controller cannot accurately determine whether the brake pedal is pressed due to a brake light switch failure, it will not be able to control the vehicle to prioritize the braking action, which may cause a traffic accident.

[0078] See also Figure 3 , is a flow chart of a vehicle control method provided in an embodiment of the present application. The method can be implemented by executing step 101 and step 104:

[0079] Step 101: Receive a brake pedal status signal sent by a travel sensor in a brake-by-wire system.

[0080] Step 104: Send the brake pedal status signal to the vehicle controller via the field bus, so that the vehicle controller controls the vehicle to brake according to the brake pedal status signal and the throttle opening signal indicating that the accelerator is pressed.

[0081] In the embodiment of the present application, after receiving the brake pedal status signal, the brake-by-wire can send the brake pedal status signal to the vehicle controller through the field bus. That is, the brake pedal status signal of the vehicle controller comes from the brake-by-wire system, not the brake light switch. For example, the field bus can be a CAN bus. When the brake pedal status signal indicates that the brake pedal is pressed, and it is detected that the accelerator is also pressed, the vehicle will be controlled to brake, thereby avoiding the problem of being unable to control the vehicle to brake first due to the inability to accurately detect whether the brake pedal is pressed in the event of a brake light switch failure, thereby ensuring user safety.

[0082] In some embodiments, in order to ensure the user's driving safety, the user is also required to step on the brake pedal when the vehicle is shifting gears. If the vehicle controller cannot accurately determine whether the brake pedal is stepped on due to a brake light switch failure, the vehicle cannot be controlled to shift gears, thereby affecting the user's experience.

[0083] See also Figure 4 , is a flow chart of a vehicle control method provided in an embodiment of the present application. The method can be implemented by executing step 101 and step 105:

[0084] Step 101: Receive a brake pedal status signal sent by a travel sensor in a brake-by-wire system.

[0085] Step 105: Send the brake pedal state signal to the vehicle controller via the field bus, so that the vehicle controller controls the vehicle to switch from the current gear to the target gear according to the brake pedal state signal and the shift signal representing the target gear to be switched to.

[0086] In an embodiment of the present application, after receiving the brake pedal status signal, the brake-by-wire can send the brake pedal status signal to the vehicle controller through the field bus. That is, the brake pedal status signal of the vehicle controller comes from the brake-by-wire system, not the brake light switch. For example, the field bus can be a CAN bus. When the brake pedal status signal indicates that the brake pedal is pressed, and it is detected that the user needs to shift gears, the vehicle will be controlled to switch to the target gear, thereby avoiding the inability to control the gear shift due to the inability to accurately detect whether the brake pedal is pressed in the event of a brake light switch failure, thereby ensuring the user experience.

[0087] In some embodiments, in order to enhance the user's driving experience, when the vehicle needs to stop for a short time, such as when encountering a red light at an intersection, the vehicle's assisted parking function can be used to brake the vehicle. When the assisted parking function is turned on, the user is also required to step on the brake pedal. If the vehicle controller cannot accurately determine whether the brake pedal is stepped on due to a brake light switch failure, the assisted parking function cannot be enabled, thereby affecting the user's experience.

[0088] See also Figure 5 , is a flow chart of a vehicle control method provided in an embodiment of the present application. The method can be implemented by executing step 101 and step 106:

[0089] Step 101: Receive a brake pedal status signal sent by a travel sensor in a brake-by-wire system.

[0090] Step 106: Send the brake pedal status signal to the vehicle controller via the field bus, so that the vehicle controller controls the vehicle to brake based on the auxiliary parking function according to the brake pedal status signal.

[0091] In an embodiment of the present application, after receiving the brake pedal status signal, the brake-by-wire can send the brake pedal status signal to the vehicle controller through the field bus. That is, the brake pedal status signal of the vehicle controller comes from the brake-by-wire system, not the brake light switch. For example, the field bus can be a CAN bus. When the brake pedal status signal indicates that the brake pedal is pressed, the vehicle can be controlled to enable the auxiliary parking function and brake based on the auxiliary parking function, thereby avoiding the problem of being unable to enable the auxiliary parking function due to the inability to accurately detect whether the brake pedal is pressed in the event of a brake light switch failure, thereby ensuring the user experience.

[0092] In some embodiments, in order to ensure driving safety, when the handbrake of the vehicle needs to be released, the user is also required to step on the brake pedal. For example, after the vehicle is ignited, the handbrake is in the pulled state, and the handbrake needs to be released at this time for the vehicle to drive normally; or, when encountering a red light at an intersection, the user chooses to pull the handbrake, then when the red light switches to green, the user needs to release the handbrake for the vehicle to drive normally. If the vehicle controller cannot accurately determine whether the brake pedal is pressed due to a brake light switch failure, the handbrake cannot be released normally, thereby affecting the user experience.

[0093] See also Figure 6 , is a flow chart of a vehicle control method provided in an embodiment of the present application. The method can be implemented by executing step 101 and step 107:

[0094] Step 101: Receive a brake pedal status signal sent by a travel sensor in a brake-by-wire system.

[0095] Step 107: Send the brake pedal state signal to the parking brake via the field bus, so that the parking brake controls the vehicle to release the handbrake according to the brake pedal state signal and the handbrake release signal indicating the manual release of the handbrake.

[0096] In the embodiment of the present application, after receiving the brake pedal status signal, the brake-by-wire can send the brake pedal status signal to the parking brake through the field bus. That is, the brake pedal status signal of the parking brake comes from the brake-by-wire system, not the brake light switch. For example, the field bus can be a CAN bus. When the brake pedal status signal indicates that the brake pedal is pressed, and the user releases the handbrake, the handbrake of the vehicle can be released, thereby avoiding the problem of being unable to release the handbrake due to the inability to accurately detect whether the brake pedal is pressed in the event of a brake light switch failure, thereby ensuring the user's experience.

[0097] See also Figure 7 Based on the same inventive concept, the embodiment of the present application provides a vehicle control system 100, which includes a travel sensor 201, a wire control brake 202 and a body domain controller 203 connected in sequence; wherein,

[0098] The travel sensor 201 is used to detect the braking travel of the brake pedal and generate a brake pedal state signal according to the braking travel, wherein when the braking travel is less than or equal to 0, the brake pedal state signal indicates that the brake pedal is not pressed; when the braking travel is greater than 0, the brake pedal state signal indicates that the brake pedal is pressed;

[0099] A brake-by-wire 202 is used to send a brake pedal status signal to a vehicle body domain controller 203 via a field bus;

[0100] The body domain controller 203 is used to control the on and off state of the brake light according to the brake pedal state signal.

[0101] See also Figure 8 , is a schematic diagram of the structure of a vehicle control system provided in an embodiment of the present application. The vehicle control system 100 further includes a vehicle controller 204, and the vehicle controller 204 is connected to the wire control brake 202;

[0102] The wire control brake 202 is further used to send a brake pedal state signal to the vehicle controller 204 via the field bus, wherein the brake pedal state signal indicates that the brake pedal is depressed;

[0103] The vehicle controller 205 is used to apply high voltage to the vehicle according to a brake pedal status signal and an ignition operation; or, to control the vehicle to brake according to a brake pedal status signal and a throttle opening signal indicating that the accelerator is pressed; or, to control the vehicle to switch from a current gear to a target gear according to the brake pedal status signal and a shift signal indicating that the gear is to be switched to; or, to control the vehicle to brake based on an assisted parking function according to the brake pedal status signal.

[0104] See also Fig. 9 , is a schematic diagram of a vehicle control system provided in an embodiment of the present application. The vehicle control system 100 further includes a parking brake 205, and the parking brake 205 is connected to the wire control brake 202;

[0105] The wire control brake 202 is further used to send a brake pedal state signal to the parking brake 205 via the field bus, wherein the brake pedal state signal indicates that the brake pedal is depressed;

[0106] The parking brake 205 is used to control the vehicle to release the handbrake according to the brake pedal state signal and the handbrake release signal indicating the manual release of the handbrake.

[0107] Optionally, the field bus is a CAN bus.

[0108] Optionally, the brake pedal status signal is represented based on the target base 1 when the brake pedal is pressed, and the brake pedal status signal is represented based on the target base 0 when the brake pedal is not pressed.

[0109] See also Fig.10 , a vehicle 200 provided in an embodiment of the present application, the vehicle 200 includes Figure 7-9 The vehicle control system 100 provided in any embodiment. The vehicle 200 may be a fuel vehicle or a new energy vehicle, which is not particularly limited here.

[0110] The above description is only a preferred embodiment of this specification and is not intended to limit this specification. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of this specification should be included in the scope of protection of this specification.

Claims

1. A vehicle control method, characterized in that: The method comprises: receiving a brake pedal state signal sent by a travel sensor in a wire control brake system, wherein the brake pedal state signal is generated by the travel sensor detecting a brake stroke of the brake pedal, wherein when the brake stroke is less than or equal to 0, the brake pedal state signal indicates that the brake pedal is not depressed; and when the brake stroke is greater than 0, the brake pedal state signal indicates that the brake pedal is depressed; The brake pedal status signal is sent to the vehicle body domain controller through the field bus, so that the vehicle body domain controller controls the on and off state of the brake light according to the brake pedal status signal.

2. The method according to claim 1, characterized in that The brake pedal state signal indicates that the brake pedal is depressed. After receiving the brake pedal state signal sent by the travel sensor, the method further includes: The brake pedal status signal is sent to the vehicle controller via the field bus, so that the vehicle controller applies high voltage to the vehicle according to the brake pedal status signal and ignition operation.

3. The method according to claim 1, characterized in that The brake pedal state signal indicates that the brake pedal is depressed. After receiving the brake pedal state signal sent by the travel sensor, the method further includes: The brake pedal state signal is sent to a vehicle controller via the field bus, so that the vehicle controller controls the vehicle to brake according to the brake pedal state signal and a throttle opening signal indicating that the accelerator is depressed.

4. The method according to claim 1, characterized in that: The brake pedal state signal indicates that the brake pedal is depressed. After receiving the brake pedal state signal sent by the travel sensor, the method further includes: The brake pedal state signal is sent to the vehicle controller through the field bus, so that the vehicle controller can detect the gear shift DD231675I according to the brake pedal state signal and the gear shift DD231675I indicating the gear to be switched to the target gear. The signal controls the vehicle to switch from the current gear to the target gear.

5. The method according to claim 1, characterized in that The brake pedal state signal indicates that the brake pedal is depressed. After receiving the brake pedal state signal sent by the travel sensor, the method further includes: The brake pedal status signal is sent to a vehicle controller via the field bus, so that the vehicle controller controls the vehicle to brake based on an auxiliary parking function according to the brake pedal status signal.

6. The method according to claim 1, characterized in that The brake pedal state signal indicates that the brake pedal is depressed. After receiving the brake pedal state signal sent by the travel sensor, the method further includes: The brake pedal state signal is sent to the parking brake via the field bus, so that the parking brake controls the vehicle to release the handbrake according to the brake pedal state signal and a handbrake release signal indicating the manual release of the handbrake.

7. The method according to any one of claims 1 to 6, characterized in that: The field bus is a CAN bus.

8. The method according to any one of claims 1 to 6, characterized in that: The brake pedal state signal is represented based on a target base 1 when the brake pedal is depressed, and is represented based on a target base 0 when the brake pedal state signal is represented based on a target base 0 when the brake pedal is not depressed.

9. A vehicle control system, characterized in that: The vehicle control system includes a stroke sensor, a wire-controlled brake and a body domain controller connected in sequence; The travel sensor is used to detect the braking travel of the brake pedal and generate a brake pedal state signal according to the braking travel, wherein when the braking travel is less than or equal to 0, the brake pedal state signal indicates that the brake pedal is not depressed; when the braking travel is greater than 0, the brake pedal state signal indicates that the brake pedal is depressed; The wire control brake is used to send the brake pedal status signal to the vehicle DD231675I through the field bus Domain controller; The vehicle body domain controller is used to control the on and off state of the brake light according to the brake pedal state signal.

10. A vehicle, characterized in that: Comprising a vehicle control system as claimed in claim 9.

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