CN112758066A - Automobile brake control system, control method and overall electronic control unit - Google Patents
Automobile brake control system, control method and overall electronic control unit Download PDFInfo
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- CN112758066A CN112758066A CN202011607810.5A CN202011607810A CN112758066A CN 112758066 A CN112758066 A CN 112758066A CN 202011607810 A CN202011607810 A CN 202011607810A CN 112758066 A CN112758066 A CN 112758066A
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- brake
- control unit
- electronic control
- brake lamp
- loop
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
- B60T7/00—Brake-action initiating means
- B60T7/12—Brake-action initiating means for automatic initiation; for initiation not subject to will of driver or passenger
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60Q—ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
- B60Q1/00—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor
- B60Q1/26—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to indicate the vehicle, or parts thereof, or to give signals, to other traffic
- B60Q1/44—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to indicate the vehicle, or parts thereof, or to give signals, to other traffic for indicating braking action or preparation for braking, e.g. by detection of the foot approaching the brake pedal
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R16/00—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for
- B60R16/02—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements
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- Mechanical Engineering (AREA)
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- Lighting Device Outwards From Vehicle And Optical Signal (AREA)
Abstract
The invention discloses an automobile brake control system, an automobile brake control method and a comprehensive electronic control unit. An automotive brake control system comprising: the parking brake system comprises a brake pedal switch, a brake lamp, an engine controller, a full-automatic parking electronic control unit, a coordinated electronic control unit, a brake lamp branch, a brake lamp loop and a controller loop, wherein the on-off of the brake lamp branch, the brake lamp loop and the controller loop are controlled by the coordinated electronic control unit; the brake lamp loop and the controller loop are simultaneously controlled to be on and off by the brake pedal switch; and the overall electronic control unit is in communication connection with the full-automatic parking electronic control unit, and controls the on-off of the brake lamp branch according to the information of the full-automatic parking electronic control unit. The invention physically separates the brake lamp loop from the controller loop, so the logic of the overall electronic control unit is simpler and easier to realize, and the invention has higher reliability, low development cost and short development period.
Description
Technical Field
The invention relates to the technical field of automobiles, in particular to an automobile brake control system, a control method and a comprehensive electronic control unit.
Background
In order to improve the driving feeling of the driver, the prior art proposes a full automatic parking (automatic) technique. The full-automatic parking is judged and executed by the vehicle according to the current environment of the vehicle, and a driver does not need to step on a brake pedal and control the parking. Thus, the autohold technology can bring a pleasant parking function to a customer, and has gradually become a glamour and charming arrangement for vehicles.
Fig. 1 shows a brake control system of a vehicle model without automatic function in the prior art, which comprises: an Engine Controller (ECM)1 ', a brake pedal switch 2 ', and a brake light 3 '. The ECM 1 'is connected to a brake pedal switch 2', one end of the brake pedal switch 2 'is connected with a power supply through a fuse box (FLUSE _ BLOCK), and the other end of the brake pedal switch is connected with a brake lamp 3'. When the driver steps on the brake pedal, the brake pedal switch 2 'is closed, and the ECM 1' receives a line closing signal, recognizes the line closing signal as a braking request and performs torque limitation. Meanwhile, the stop lamp 3' is turned on when being powered on.
For the vehicle type with the automatic function, the regulation is required to be met, and when the service braking system is started through the automatic control braking system, a brake lamp lighting instruction is sent.
Therefore, when the automatic function is activated, the driver does not need to press the brake pedal at this time, the brake pedal switch is not closed, but in order to meet the requirement of the regulation, the brake lamp corresponding line needs to be closed so as to light the brake lamp.
Therefore, if the brake control system shown in fig. 1 is adopted, since the ECM 1 ' takes an electric signal between the brake pedal switch 2 ' and the brake lamp 3 ', after the automatic function is added, the following scenario occurs in the real vehicle operation:
the automatic function is activated, the driver does not need to step on the brake pedal at this time, the brake pedal switch is not closed, but in order to meet the requirements of the regulations, the brake lamp 3 'should be turned on, so the corresponding line will be closed, and the ECM 1' receives the signal and still executes the function of limiting the torque.
However, when the auto-hold is active, it is not necessary that the ECM 1' perform the torque limiting function. For example, when the driver prepares for vehicle start and depresses the accelerator pedal, the automatic function will be exited, but because the ECM 1 'performs the torque limiting function because the brake lamp 3' is closed, the vehicle will not be able to normally start and run at this time, and a great complaint will be caused to customers.
In order to solve this problem, the prior art proposes a brake control system as shown in fig. 2, including: the Control system comprises an ECM 1 ', a brake pedal switch 2 ', a brake lamp 3 ', an overall Electronic Control Unit (ECU) 4 ' and an automatic ECU 5 ', wherein the overall ECU 4 ' is connected in series with a closed circuit of the brake lamp 3 ', and the ECM 1 ', the overall ECU 4 ' and the automatic ECU 5 ' communicate through a Controller Area Network (CAN) 6 '. The overall ECU 4 'controls the on-off of the closed circuit of the brake lamp 3' and simultaneously controls the ECM 1 'to execute or stop executing the torque limiting function by acquiring the information of the automatic ECU 5'.
However, in the brake control system according to the related art, the overall ECU 4' needs to change hardware and software and to complete a test for testing the hardware and the software. Since the overall ECU 4 ' needs to take into account the closing of the brake lamp 3 ' and the execution or stop of the execution of the torque limiting function by the ECM 1 ', the overall development cost is high and the development period is long.
Disclosure of Invention
Therefore, it is necessary to provide an automobile brake control system, a control method and a general electronic control unit for solving the technical problem that the development cost is high and the development period is long when an automobile with an automatic parking function is used for controlling a brake lamp in the prior art.
The invention provides an automobile brake control system, comprising: the parking brake system comprises a brake pedal switch, a brake lamp, an engine controller, a full-automatic parking electronic control unit, a coordinated electronic control unit, a brake lamp branch circuit, a brake lamp loop and a controller loop, wherein the on-off of the brake lamp branch circuit, the brake lamp loop and the controller loop are controlled by the coordinated electronic control unit;
the brake lamp loop and the controller loop are simultaneously controlled to be on and off by the brake pedal switch, when the automobile brake pedal is stepped on, the brake lamp loop is communicated, the controller loop is communicated, and when the automobile brake pedal is released, the brake lamp loop is disconnected, and the controller loop is disconnected;
one end of the brake lamp loop is electrically connected with a power supply end, the other end of the brake lamp loop is electrically connected with the brake lamp, one end of the controller loop is electrically connected with the power supply end, and the other end of the controller loop is respectively electrically connected with the engine controller and the full-automatic parking electronic control unit;
one end of the brake lamp branch is electrically connected with a power supply end, and the other end of the brake lamp branch is electrically connected with one end of the brake lamp;
the overall electronic control unit is in communication connection with the full-automatic parking electronic control unit, and the overall electronic control unit controls the on-off of the brake lamp branch according to the information of the full-automatic parking electronic control unit.
Furthermore, the brake lamp loop comprises a first line and a second line, the controller loop comprises a third line and a fourth line, when the automobile brake pedal is pressed down, the first line is communicated with the second line, the third line is communicated with the fourth line, when the automobile brake pedal is released, the first line is disconnected from the second line, and the third line is disconnected from the fourth line;
the first circuit and the third circuit are respectively and electrically connected with a power supply end, one end of the brake lamp is electrically connected with the second circuit, the other end of the brake lamp is grounded, and the fourth circuit is respectively and electrically connected with the engine controller and the full-automatic parking electronic control unit.
Further, the brake lamp branch road is provided with the relay, relay one end is connected with the power end electricity, the other end with brake lamp one end electricity is connected, the overall electronic control unit according to full-automatic parking electronic control unit's information, control the break-make of relay.
Further, the overall electronic control unit is in communication connection with the full-automatic parking electronic control unit through a controller domain network.
Further, the engine controller is communicatively coupled to a controller area network.
The invention provides a control method of the overall electronic control unit of the automobile brake control system, which comprises the following steps:
if an actuating signal sent by the full-automatic parking electronic control unit of the automobile brake control system is received;
and controlling the brake lamp branch of the automobile brake control system to be conducted, and lighting the brake lamp.
Further, still include:
and if the actuating signal sent by the full-automatic parking electronic control unit is not received, the brake lamp branch is controlled to be disconnected.
Further, if receiving an actuation signal sent by the full-automatic parking electronic control unit of the automobile brake control system, the method specifically includes:
and if the automobile brake pedal is not pressed, receiving an actuating signal sent by the full-automatic parking electronic control unit of the automobile brake control system.
Further, the controlling the communication of the brake lamp branch of the automobile brake control system specifically includes:
and controlling a relay of the brake lamp branch to be switched on.
The present invention provides a coordinated electronic control unit of the vehicle brake control system as described above, including:
at least one processor; and the number of the first and second groups,
a memory communicatively coupled to at least one of the processors; wherein the content of the first and second substances,
the memory stores instructions executable by at least one of the processors to enable the at least one processor to perform a method of controlling a pooled electronic control unit of a vehicle brake control system as hereinbefore described.
According to the invention, a brake lamp loop for controlling the brake lamp is separated from a controller loop for sending information to the engine controller and the full-automatic parking electronic control unit, the brake lamp branch is added, and the on-off of the brake lamp branch is controlled by the overall electronic control unit, so that the control on the brake lamp does not influence the engine controller, and the torque limiting function of the engine controller is prevented from being executed by mistake. The invention physically separates the brake lamp loop from the controller loop, so the logic of the overall electronic control unit is simpler and easier to realize, and the invention has higher reliability, low development cost and short development period.
Drawings
FIG. 1 is a schematic diagram of a prior art brake control system;
FIG. 2 is a schematic diagram of a conventional brake control system with fully automatic parking;
FIG. 3 is a system schematic of a vehicle brake control system according to an embodiment of the present application;
fig. 4 is a flowchart illustrating a control method of the pooled electronic control unit of the vehicle brake control system according to an embodiment of the present invention;
fig. 5 is a flowchart illustrating a control method of the pooled electronic control unit of the vehicle brake control system according to another embodiment of the present invention;
FIG. 6 is a block diagram of an integrated electronic control unit of the vehicle brake control system according to an embodiment of the present invention;
fig. 7 is a flowchart illustrating a method for controlling a brake control system of a vehicle according to a preferred embodiment of the present invention.
Description of the marks
1' -an engine controller; 2' -a brake pedal switch; 3' -brake lights; 4' -coordinating the electronic control unit; 5' -a full-automatic parking electronic control unit; 6' -controller domain network; 1-brake pedal switch; 11-a first line; 12-a second line; 13-a third line; 14-a fourth line; 2-brake light; 3-an engine controller; 4-a full-automatic parking electronic control unit; 5-overall electronic control unit; 6-brake lamp branch; 7-a relay; 8-controller domain network.
Detailed Description
The invention is described in further detail below with reference to the figures and specific examples.
Example one
Fig. 3 is a schematic system diagram of a brake control system of a vehicle according to an embodiment of the present invention, including: the parking brake system comprises a brake pedal switch 1, a brake lamp 2, an engine controller 3, a full-automatic parking electronic control unit 4, a coordinated electronic control unit 5, a brake lamp branch 6 controlled to be on or off by the coordinated electronic control unit 5, a brake lamp loop and a controller loop;
the brake lamp loop and the controller loop are simultaneously controlled to be on and off by the brake pedal switch 1, when the automobile brake pedal is stepped on, the brake lamp loop is communicated, the controller loop is communicated, and when the automobile brake pedal is released, the brake lamp loop is disconnected, and the controller loop is disconnected;
one end of the brake lamp loop is electrically connected with a power supply end, the other end of the brake lamp loop is electrically connected with the brake lamp 2, one end of the controller loop is electrically connected with the power supply end, and the other end of the controller loop is respectively electrically connected with the engine controller 3 and the full-automatic parking electronic control unit 4;
one end of the brake lamp branch 6 is electrically connected with a power supply end, and the other end of the brake lamp branch is electrically connected with one end of the brake lamp 2;
the overall electronic control unit 5 is in communication connection with the full-automatic parking electronic control unit 4, and the overall electronic control unit 5 controls the on-off of the brake lamp branch 6 according to the information of the full-automatic parking electronic control unit 4.
Specifically, the brake pedal switch 1 is a bidirectional switch controlled by a brake pedal, and when the brake pedal is depressed, both the brake light circuit and the controller circuit are connected, and when the brake pedal of the automobile is released, both the brake light circuit and the controller circuit are disconnected. In the embodiment, the control loop is separated from the brake lamp loop, the engine controller 3 is separated from the brake lamp loop, the brake lamp loop is only connected with the brake lamp 2, and the control loop is connected with the full-automatic parking electronic control unit 4 and the engine controller 3.
The stop lamp circuit has the same input signal as the controller circuit, and therefore has no effect on the input of the signal of the engine controller 3.
In the ordinary braking, the driver depresses the brake pedal, the stop lamp circuit and the controller circuit of the brake pedal switch 1 are closed at the same time, the engine controller 3 performs torque limitation, and the stop lamp 2 is turned on at the same time.
Newly-increased stop lamp branch road 6 is connected in the stop lamp return circuit both ends, and overall electronic control unit 5 controls this stop lamp branch road 6. When the autohold actuates, full-automatic parking electronic control unit 4 will correspond the signal of actuating and send for overall electronic control unit 5, by overall electronic control unit 5 control brake lamp branch road 6, correspond the return circuit and switch on, light brake lamp 2. At this time, the controller circuit is in an open state, the engine controller 3 does not receive the close signal, and the torque limiting function is not executed by mistake.
Specifically, the overall electronic control unit 5 may select and adjust the ECU according to the vehicle ECU condition, for example, an independent ECU may be used as the overall electronic control unit, or an ECU existing in the vehicle may be selected to add a corresponding function.
According to the invention, a brake lamp loop for controlling the brake lamp is separated from a controller loop for sending information to the engine controller and the full-automatic parking electronic control unit, the brake lamp branch is added, and the on-off of the brake lamp branch is controlled by the overall electronic control unit, so that the control on the brake lamp does not influence the engine controller, and the torque limiting function of the engine controller is prevented from being executed by mistake. The invention physically separates the brake lamp loop from the controller loop, so the logic of the overall electronic control unit is simpler and easier to realize, and the invention has higher reliability, low development cost and short development period.
Example two
Fig. 3 is a schematic system diagram of a brake control system of a vehicle according to an embodiment of the present invention, including: the parking brake system comprises a brake pedal switch 1, a brake lamp 2, an engine controller 3, a full-automatic parking electronic control unit 4, a coordinated electronic control unit 5, a brake lamp branch 6 controlled to be on or off by the coordinated electronic control unit 5, a brake lamp loop and a controller loop;
the brake lamp loop and the controller loop are simultaneously controlled to be on and off by the brake pedal switch 1, when the automobile brake pedal is stepped on, the brake lamp loop is communicated, the controller loop is communicated, and when the automobile brake pedal is released, the brake lamp loop is disconnected, and the controller loop is disconnected;
one end of the brake lamp loop is electrically connected with a power supply end, the other end of the brake lamp loop is electrically connected with the brake lamp 2, one end of the controller loop is electrically connected with the power supply end, and the other end of the controller loop is respectively electrically connected with the engine controller 3 and the full-automatic parking electronic control unit 4;
one end of the brake lamp branch 6 is electrically connected with a power supply end, and the other end of the brake lamp branch is electrically connected with one end of the brake lamp 2;
the overall electronic control unit 5 is in communication connection with the engine controller 3 and the full-automatic parking electronic control unit 4 through a controller area network 8, and the overall electronic control unit 5 controls the on-off of the brake lamp branch 6 according to information of the full-automatic parking electronic control unit 4;
the brake lamp loop comprises a first line 11 and a second line 12, the controller loop comprises a third line 13 and a fourth line 14, when the automobile brake pedal is pressed down, the first line 11 is communicated with the second line 12, the third line 13 is communicated with the fourth line 14, when the automobile brake pedal is released, the first line 11 is disconnected with the second line 12, and the third line 13 is disconnected with the fourth line 14;
the first line 11 and the third line 13 are respectively electrically connected with a power supply end, one end of the brake lamp 2 is electrically connected with the second line 12, the other end of the brake lamp is grounded, and the fourth line 14 is respectively electrically connected with the engine controller 3 and the full-automatic parking electronic control unit 4.
The brake lamp branch 6 is provided with a relay 7, one end of the relay 7 is electrically connected with a power supply end, the other end of the relay is electrically connected with one end of the brake lamp 2, and the overall electronic control unit 5 controls the on-off of the relay 7 according to the information of the full-automatic parking electronic control unit 4.
Specifically, the stop lamp circuit includes a first line 11, and a second line 12, and the controller circuit includes a third line 13 and a fourth line 14. When the automobile brake pedal is pressed down, the first line 11 is communicated with the second line 12, the third line 13 is communicated with the fourth line 14, when the automobile brake pedal is released, the first line 11 is disconnected with the second line 12, and the third line 13 is disconnected with the fourth line 14.
During ordinary braking, when the driver depresses the brake pedal, the first line 11 is communicated with the second line 12, the third line 13 is communicated with the fourth line 14, the engine controller 3 performs torque limitation, and the brake lamp 2 is turned on.
Newly-increased stop lamp branch road 6 connect in first circuit 11 with the 12 both ends of second circuit, stop lamp branch road 6 sets up relay 7, and overall electronic control unit 5 controls this relay 7. When the autohold actuates, full-automatic parking electronic control unit 4 will correspond the signal of actuating and send for overall electronic control unit 5, by overall electronic control unit 5 control relay 7 closure, correspond the return circuit and switch on, light brake lamp 2. At this time, the controller circuit third line 13 is disconnected from the fourth line 14, and the engine controller 3 does not receive the close signal and does not erroneously perform the torque limiting function.
According to the invention, a brake lamp loop for controlling the brake lamp is separated from a controller loop for sending information to the engine controller and the full-automatic parking electronic control unit, the brake lamp branch is added, and the on-off of the brake lamp branch is controlled by the overall electronic control unit, so that the control on the brake lamp does not influence the engine controller, and the torque limiting function of the engine controller is prevented from being executed by mistake. The invention physically separates the brake lamp loop from the controller loop, so the logic of the overall electronic control unit is simpler and easier to realize, and the invention has higher reliability, low development cost and short development period. The relay and the overall electronic control unit can be adjusted according to the vehicle type condition, and the application flexibility is high.
EXAMPLE III
Fig. 4 is a flowchart illustrating a control method of the pooled electronic control unit of the vehicle brake control system according to an embodiment of the present invention, including:
step S401, if an actuating signal sent by the full-automatic parking electronic control unit 4 of the automobile brake control system is received;
and step S402, controlling the brake lamp branch 6 of the automobile brake control system to be conducted, and lighting the brake lamp 2.
In particular, the present embodiment may be applied to the overall electronic control unit of the automobile brake control system as described above. When the full-automatic parking electronic control unit 4 is activated, an activation signal is received, step S401 is triggered, step S402 is executed, and the brake lamp branch 6 is controlled to be conducted, so that the brake lamp 2 is turned on.
The invention physically separates the brake lamp loop from the controller loop, so the logic of the overall electronic control unit is simpler and easier to realize, and the invention has higher reliability, low development cost and short development period.
Example four
Fig. 5 is a flowchart illustrating a control method of the pooled electronic control unit of the vehicle brake control system according to another embodiment of the present invention, including:
step S501, if the automobile brake pedal is not stepped on, an actuating signal sent by the full-automatic parking electronic control unit 4 of the automobile brake control system is received;
step S502, controlling the relay 7 of the brake lamp branch 6 to be switched on, and lighting the brake lamp 2;
in step S503, if the actuating signal sent by the full-automatic parking electronic control unit 4 is not received, the brake lamp branch circuit 6 is controlled to be turned off.
Specifically, when the brake pedal of the vehicle is not pressed down and an actuation signal is received, step S501 is triggered. The depression of the brake pedal of the vehicle can be determined by the brake pedal switch 1. Then, step S502 is executed, and the relay is controlled to be turned on, so that the stop lamp branch 6 is turned on, and the stop lamp 2 is turned on. And if the actuating signal sent by the full-automatic parking electronic control unit 4 is not received, the brake lamp branch circuit 6 is controlled to be disconnected, and the brake lamp 2 is controlled by the brake pedal switch 1.
The invention physically separates the brake lamp loop from the controller loop, so the logic of the overall electronic control unit is simpler and easier to realize, and the invention has higher reliability, low development cost and short development period.
EXAMPLE five
Fig. 6 shows a coordinated electronic control unit of the vehicle brake control system according to an embodiment of the present invention, including:
at least one processor 601; and the number of the first and second groups,
a memory 602 communicatively coupled to at least one of the processors 601; wherein the content of the first and second substances,
the memory 602 stores instructions executable by at least one of the processors 601, the instructions being executable by the at least one of the processors 601 to enable the at least one of the processors 601 to perform the control method of the orchestrated electronic control unit of the vehicle brake control system as described above.
The overall Electronic Control Unit is preferably an automotive Electronic Control Unit (ECU), for example, an independent overall Electronic Control Unit. In fig. 6, one processor 601 is taken as an example.
The electronic device may further include: an input device 603 and a display device 604.
The processor 601, the memory 602, the input device 603, and the display device 604 may be electrically connected by a bus or other means, and are illustrated as being electrically connected by a bus.
The memory 602 is a non-volatile computer-readable storage medium and may be used to store non-volatile software programs, non-volatile computer-executable programs, and modules, such as program instructions/modules corresponding to a control method of a coordinated electronic control unit of a vehicle brake control system in an embodiment of the present application, for example, a method flow shown in fig. 4. The processor 601 executes various functional applications and data processing by executing nonvolatile software programs, instructions and modules stored in the memory 602, that is, implements the control method of the overall electronic control unit of the vehicle brake control system in the above-described embodiment.
The memory 602 may include a storage program area and a storage data area, wherein the storage program area may store an operating system, an application program required for at least one function; the storage data area may store data created according to use of a control method of the overall electronic control unit of the automobile brake control system, and the like. Further, the memory 602 may include high speed random access memory, and may also include non-volatile memory, such as at least one magnetic disk storage device, flash memory device, or other non-volatile solid state storage device. In some embodiments, the memory 602 optionally includes a memory remotely located from the processor 601, and these remote memories may be electrically connected through a network to a device that performs a control method of a pooled electronic control unit of a vehicle brake control system. Examples of such networks include, but are not limited to, the internet, intranets, local area networks, mobile communication networks, and combinations thereof.
The input device 603 may receive input user clicks and generate signal inputs related to user settings and function control of the control method of the orchestrated electronic control unit of the vehicle brake control system. The display device 604 may include a display screen or the like.
When the one or more modules are stored in the memory 602 and executed by the one or more processors 601, the method for controlling the overall electronic control unit of the vehicle brake control system in any of the above-described method embodiments is performed.
The invention physically separates the brake lamp loop from the controller loop, so the logic of the overall electronic control unit is simpler and easier to realize, and the invention has higher reliability, low development cost and short development period.
EXAMPLE six
Fig. 7 is a flowchart illustrating a control method of the vehicle brake control system according to the preferred embodiment of the present invention, which includes:
step S701, if the brake pedal is pressed, step S705 is executed, otherwise, the engine controller does not execute the torque limiting function and executes step S702;
step S702, judging whether the CAN upper planning electronic control unit receives an actuating signal sent by the full-automatic parking electronic control unit, if so, executing step S703, otherwise, executing step S704;
step S703, the electronic control unit is arranged to attract the relay, the brake lamp is lightened, and the operation is finished;
step S704, the electronic control unit is arranged not to attract the relay, the brake lamp is not lightened, and the operation is finished;
step S705, normal braking, torque limitation executed by the engine controller, loop conduction and brake lamp lighting.
The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the present invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (10)
1. A vehicle brake control system, comprising: the parking brake system comprises a brake pedal switch (1), a brake lamp (2), an engine controller (3), a full-automatic parking electronic control unit (4), a coordinated electronic control unit (5), a brake lamp branch (6) controlled to be switched on and off by the coordinated electronic control unit (5), a brake lamp loop and a controller loop;
the brake lamp loop and the controller loop are simultaneously controlled to be on and off by the brake pedal switch (1), when the automobile brake pedal is stepped on, the brake lamp loop is communicated, the controller loop is communicated, and when the automobile brake pedal is released, the brake lamp loop is broken, and the controller loop is broken;
one end of the brake lamp loop is electrically connected with a power supply end, the other end of the brake lamp loop is electrically connected with the brake lamp (2), one end of the controller loop is electrically connected with the power supply end, and the other end of the controller loop is respectively electrically connected with the engine controller (3) and the full-automatic parking electronic control unit (4);
one end of the brake lamp branch (6) is electrically connected with a power supply end, and the other end of the brake lamp branch is electrically connected with one end of the brake lamp (2);
the integrated electronic control unit (5) is in communication connection with the full-automatic parking electronic control unit (4), and the integrated electronic control unit (5) controls the on-off of the brake lamp branch (6) according to the information of the full-automatic parking electronic control unit (4).
2. The vehicle brake control system according to claim 1, wherein the brake light circuit includes a first circuit (11) and a second circuit (12), the controller circuit includes a third circuit (13) and a fourth circuit (14), the first circuit (11) is communicated with the second circuit (12) when the vehicle brake pedal is depressed, the third circuit (13) is communicated with the fourth circuit (14), the first circuit (11) is disconnected from the second circuit (12) when the vehicle brake pedal is released, and the third circuit (13) is disconnected from the fourth circuit (14);
the first line (11) and the third line (13) are respectively and electrically connected with a power supply end, one end of the brake lamp (2) is electrically connected with the second line (12), the other end of the brake lamp is grounded, and the fourth line (14) is respectively and electrically connected with the engine controller (3) and the full-automatic parking electronic control unit (4).
3. The automobile brake control system according to claim 1, characterized in that the brake lamp branch (6) is provided with a relay (7), one end of the relay (7) is electrically connected with a power supply end, the other end of the relay is electrically connected with one end of the brake lamp (2), and the overall electronic control unit (5) controls the on-off of the relay (7) according to the information of the full-automatic parking electronic control unit (4).
4. The vehicle brake control system according to claim 1, characterized in that the orchestration electronic control unit (5) and the fully automatic parking electronic control unit (4) are communicatively connected by a controller domain network (8).
5. The vehicle brake control system according to claim 4, characterized in that the engine controller (3) is communicatively connected to a controller area network (8).
6. A control method of a pooled electronic control unit of a vehicle brake control system according to any one of claims 1 to 5, comprising:
if an actuating signal sent by the full-automatic parking electronic control unit (4) of the automobile brake control system is received;
and controlling the brake lamp branch (6) of the automobile brake control system to be conducted, and lighting the brake lamp (2).
7. The control method of the pooled electronic control unit of the automobile brake control system according to claim 6, further comprising:
and if the actuating signal sent by the full-automatic parking electronic control unit (4) is not received, the brake lamp branch circuit (6) is controlled to be disconnected.
8. The method for controlling the orchestrated electronic control unit of the automotive brake control system according to claim 6, wherein the step of, if receiving an actuation signal sent by the fully automatic parking electronic control unit (4) of the automotive brake control system, specifically comprises:
if the automobile brake pedal is not pressed down, an actuating signal sent by the full-automatic parking electronic control unit (4) of the automobile brake control system is received.
9. The method for controlling the orchestrated electronic control unit of the automotive brake control system according to claim 6, wherein the controlling the communication of the brake light branch (6) of the automotive brake control system specifically comprises:
and controlling a relay (7) connected with the brake lamp branch (6) to be switched on.
10. A pooled electronic control unit of a vehicle brake control system according to any one of claims 1 to 5, comprising:
at least one processor; and the number of the first and second groups,
a memory communicatively coupled to at least one of the processors; wherein the content of the first and second substances,
the memory stores instructions executable by at least one of the processors to enable the at least one of the processors to perform a method of controlling a pooled electronic control unit of a vehicle brake control system according to any one of claims 6 to 9.
Priority Applications (1)
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