CN110239459B - Downhill auxiliary function switch control system and method - Google Patents
Downhill auxiliary function switch control system and method Download PDFInfo
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Abstract
The invention protects a downhill auxiliary function switch control system and a method, wherein an HDC functional module is integrated in an automobile electronic stability controller assembly, and an HDC functional touch switch is integrated in a vehicle-mounted information entertainment terminal assembly; the automobile electronic stability controller assembly sends an HDC functional fault state signal or a working state signal of the HDC functional module to the gateway assembly through the CAN bus, and the gateway assembly forwards the signal to the vehicle-mounted information entertainment terminal assembly to control the illegal state or the working state of the HDC functional switch, so that the opening and closing of the downhill auxiliary function are realized under the condition of not adding other hardware and line connection.
Description
Technical Field
The invention relates to the field of automobile electronic control systems, in particular to a downhill auxiliary function switch control system and a control method.
Background
In recent years, the technology development of the automobile industry is rapid, and the technology in the field of automobile electronic control is more and more advanced. The automobile active safety system and the driving auxiliary system are mostly applied to middle and high-end automobile types in the early stage, and along with the development of the technology, the automatic driving auxiliary system is gradually carried by more and more middle and low-end automobile types at present. An Electronic Stability Program (ESP) and an automobile downhill auxiliary function (HDC) are typical active safety systems and driving auxiliary systems of automobiles respectively, and the ESP and HDC are generally integrated in an Electronic Stability controller assembly of an automobile.
At present, regarding the operation of the HDC function, the external switch usually controls the on and off states of the HDC function through a hard wire connection, and the following disadvantages exist:
(1) The external switch and the hard wire are arranged, so that the development cost of the whole vehicle and the complexity of a peripheral electric system are increased;
(2) The external switch has the problem of service life, and the maintenance cost of a terminal user is increased;
(3) When the external switch and the hard wire connecting circuit have faults, the problem points are difficult to check and lock, and the after-sale maintenance difficulty is large;
(4) The external switch is turned on or off to cause sudden change of current in a hard line, and electromagnetic waves are radiated to the surroundings, which may cause electromagnetic interference to the surrounding environment and affect the function and safety of the vehicle.
Disclosure of Invention
The invention aims to provide a switch control system with a downhill auxiliary function, which realizes the opening and closing of the downhill auxiliary function under the condition of not adding other hardware and line connection through the existing CAN bus, an automobile electronic stability controller assembly, a gateway assembly, a vehicle-mounted information entertainment terminal assembly and a power supply assembly of an automobile. Further, the invention also provides a switch control method of the downhill auxiliary function.
The technical scheme of the invention is as follows:
the invention provides a switch control system with a downhill auxiliary function, which comprises an HDC functional module integrated in an automobile electronic stability controller assembly, a gateway assembly, an HDC functional touch switch integrated in a vehicle-mounted information entertainment terminal assembly and a power supply assembly, wherein the gateway assembly is respectively connected with the vehicle-mounted information entertainment terminal assembly and the automobile electronic stability controller assembly through a CAN bus; and the power supply assembly is respectively connected with the automobile stability controller assembly, the gateway assembly and the vehicle-mounted information entertainment terminal assembly through hard wires.
In the downhill auxiliary function switch control system, the automotive electronic stability controller assembly sends an HDC functional fault state signal of the HDC functional module to the gateway assembly through the CAN bus, and the gateway assembly forwards the signal to the vehicle-mounted information entertainment terminal assembly so as to control the illegal state of the HDC functional switch.
According to the downhill auxiliary function switch control system, the automobile electronic stability controller assembly sends the HDC function working state signal of the HDC function module to the gateway assembly through the CAN bus, and the gateway assembly forwards the signal to the vehicle-mounted information entertainment terminal assembly so as to control the working state of the HDC function switch.
The switch control system of the downhill auxiliary function, the vehicle-mounted information entertainment terminal assembly sends the HDC function touch switch state signal to the gateway assembly through the CAN bus, and the gateway assembly forwards the signal to the automobile electronic stability controller assembly so as to control the working state of the HDC function module.
The invention further provides a downhill auxiliary function switch control method, which comprises the following steps:
the automobile electronic stability controller assembly sends an HDC functional fault state signal of the HDC functional module to the gateway assembly through the CAN bus, and the gateway assembly forwards the signal to the vehicle-mounted information entertainment terminal assembly so as to control the illegal state of the HDC functional switch.
The automobile electronic stability controller assembly sends the HDC function working state signal of the HDC function module to the gateway assembly through the CAN bus, and the gateway assembly forwards the signal to the vehicle-mounted information entertainment terminal assembly so as to control the working state of the HDC function switch.
The vehicle-mounted information entertainment terminal assembly sends the HDC function touch switch state signal to the gateway assembly through the CAN bus, and the gateway assembly forwards the signal to the automobile electronic stability controller assembly so as to control the working state of the HDC function module.
The method comprises the following specific steps:
the method comprises the steps that firstly, a power supply assembly detects whether a power supply of the whole vehicle is in a power-on state, and if yes, the second step is executed; if not, executing the first step.
Secondly, the HDC functional module detects whether the HDC function has a fault, and if the HDC function has the fault, the third step is executed; if the HDC function has no fault, executing the fourth step;
thirdly, the automotive electronic stability controller assembly controls the HDC function module to set the HDC function to be in a fault state, and the automotive electronic stability controller assembly sends an HDC function fault state signal to the gateway assembly through the CAN bus, the gateway assembly forwards the signal to the vehicle-mounted information entertainment terminal assembly through the CAN bus, and the vehicle-mounted information entertainment terminal assembly receives the signal and then controls the HDC function touch switch to be in an illegal state; then, executing the first step;
fourthly, the vehicle-mounted information entertainment terminal assembly judges whether the cycle is the first cycle after the power-on, and if the cycle is the first cycle, the fifth step is executed; if not, executing the thirteenth step;
and fifthly, the vehicle-mounted information entertainment terminal assembly sends an HDC function touch switch closing state signal to the gateway assembly through the CAN bus, the gateway assembly forwards the signal to the automobile electronic stability controller assembly through the CAN bus, and the automobile electronic stability controller assembly controls the HDC function module to close the HDC function after receiving the signal. And then, the automobile electronic stability controller assembly sends an HDC function closing state signal to the gateway assembly through the CAN bus, the gateway assembly forwards the signal to the vehicle-mounted information entertainment terminal assembly through the CAN bus, and the vehicle-mounted information entertainment terminal assembly controls the HDC function touch switch to be in a closing state after receiving the signal. Then executing the sixth step;
sixthly, judging whether the driver clicks the HDC function touch switch or not by the vehicle-mounted information entertainment terminal assembly, and executing the seventh step if the driver clicks the HDC function touch switch; if the driver does not click the HDC function touch switch, executing a first step;
seventhly, judging whether the state of the whole vehicle meets the HDC function starting condition or not by the HDC function module, and executing the eighth step if the state meets the HDC function starting condition; if the HDC function starting condition is not met, executing a ninth step;
and eighthly, the vehicle-mounted information entertainment terminal assembly sends an HDC function touch switch starting state signal to the gateway assembly through the CAN bus, the gateway assembly forwards the signal to the automobile electronic stability controller assembly through the CAN bus, and the automobile electronic stability controller assembly controls the HDC function module to start the HDC function after receiving the signal. And then the automobile electronic stability controller assembly sends an HDC function starting state signal to the gateway assembly through the CAN bus, the gateway assembly forwards the signal to the vehicle-mounted information entertainment terminal assembly through the CAN bus, and the vehicle-mounted information entertainment terminal assembly controls the HDC function touch switch to be in a starting state after receiving the signal. Then executing the tenth step;
and ninthly, the vehicle-mounted information entertainment terminal assembly sends an HDC function touch switch closing state signal to the gateway assembly through the CAN bus, the gateway assembly forwards the signal to the automobile electronic stability controller assembly through the CAN bus, and the automobile electronic stability controller assembly controls the HDC function module to close the HDC function after receiving the signal. And then, the automobile electronic stability controller assembly sends an HDC function closing state signal to the gateway assembly through the CAN bus, the gateway assembly forwards the signal to the vehicle-mounted information entertainment terminal assembly through the CAN bus, and the vehicle-mounted information entertainment terminal assembly controls the HDC function touch switch to be in a closing state after receiving the signal. The first step is then performed.
Tenth step, judging whether the state of the whole vehicle meets the HDC function activation condition by the HDC function module, and executing the eleventh step if the state meets the HDC function activation condition; if the HDC function activation condition is not met, executing a twelfth step;
step ten, the automotive electronic stability controller assembly controls the HDC functional module to activate the HDC function, and then the first step is executed;
the twelfth step, the automotive electronic stability controller assembly controls the HDC functional module to execute the HDC function standby, and then the first step is executed;
step thirteen, the HDC functional module judges whether the HDC function is in an open state, if the HDC function is in the open state, the fourteenth step is executed; if the HDC function is in the closing state, executing the fifth step;
fourteenth step, the automobile electronic stability controller assembly controls the HDC function module to execute HDC function activation/standby, and sends HDC function activation/standby state signals to the gateway assembly through the CAN bus, the gateway assembly forwards the signals to the vehicle-mounted information entertainment terminal assembly through the CAN bus, and the vehicle-mounted information entertainment terminal assembly controls the HDC function touch switch to be in an on state after receiving the signals. Then executing the fifteenth step;
fifteenth, the vehicle-mounted information entertainment terminal assembly judges whether the driver clicks the HDC function touch switch or not, and if the driver clicks the HDC function touch switch, the sixteenth step is executed; if the driver does not click the HDC function touch switch, executing the tenth step;
sixthly, the vehicle-mounted information entertainment terminal assembly sends an HDC function touch switch closing state signal to the gateway assembly through the CAN bus, the gateway assembly forwards the signal to the automobile electronic stability controller assembly through the CAN bus, and the automobile electronic stability controller assembly controls the HDC function module to close the HDC function after receiving the signal. And then, the automobile electronic stability controller assembly sends an HDC function closing state signal to the gateway assembly through the CAN bus, the gateway assembly forwards the signal to the vehicle-mounted information entertainment terminal assembly through the CAN bus, and the vehicle-mounted information entertainment terminal assembly controls the HDC function touch switch to be in a closing state after receiving the signal. The first step is then performed.
Further, in the first step, when the power supply of the whole vehicle is in a power-on state, the power supply assembly supplies power to the electronic stability controller assembly of the vehicle, the gateway assembly and the vehicle-mounted information entertainment terminal assembly through hard wires, and then the second step is executed.
And in the third step, when the HDC function touch switch is in an illegal state, the display is controlled to be gray and cannot be controlled.
Compared with the traditional technology for controlling the opening and closing of the auxiliary function of the downhill through an external switch and a hard wire connection method, the method realizes the opening and closing of the auxiliary function of the downhill through the existing CAN bus, the automobile electronic stability controller assembly, the gateway assembly, the vehicle-mounted information entertainment terminal assembly and the power supply assembly of the automobile without adding other hardware and line connection, CAN save the hardware cost brought by the external switch, the hard wire and the like, reduce the complexity of a peripheral electrical system, reduce the problem troubleshooting difficulty when the external switch and a connecting line have faults, and reduce the after-sale maintenance difficulty and the maintenance cost of a terminal user. The opening and closing of the downhill auxiliary function are controlled by signal interaction through CAN bus (twisted pair shielding) signals, so that electromagnetic interference to the surrounding environment is avoided, and the safety performance of the vehicle CAN be improved.
Drawings
Fig. 1 is a schematic block diagram of a downhill assist function switch control system.
Fig. 2 is a control flowchart of the downhill assist function switch control system.
In the figure: 1-HDC functional module, 2-automobile electronic stability controller assembly, 3-gateway assembly, 4-vehicle information entertainment terminal assembly, 5-HDC touch switch, 6-power assembly.
Detailed Description
The invention is further described with reference to the accompanying drawings in which:
example 1:
referring to fig. 1, the switch control system for the auxiliary function of the downhill comprises an HDC function module 1, an automobile electronic stability controller assembly 2, a gateway assembly 3, a vehicle-mounted information entertainment terminal assembly 4, an HDC function touch switch 5 and a power supply assembly 6. The automotive electronic stability controller assembly 2 is integrated with the HDC functional module 1; an HDC function touch switch 5 is integrated in the vehicle-mounted information entertainment terminal assembly 4. The automobile electronic stability controller assembly 2 and the vehicle-mounted information entertainment terminal assembly 4 are respectively connected with the gateway assembly 3 through CAN buses, and the automobile electronic stability controller assembly 2, the gateway assembly 3 and the vehicle-mounted information entertainment terminal assembly 4 are respectively connected with the power supply assembly 6 through hard wires.
In the control system, the automobile electronic stability controller assembly 2 sends the HDC functional fault state signal of the HDC functional module 1 to the gateway assembly 3 through the CAN bus, and the gateway assembly 3 forwards the signal to the vehicle-mounted information entertainment terminal assembly 4 so as to control the illegal state of the HDC functional touch switch 5.
In the control system, the automobile electronic stability controller assembly 2 sends the HDC function working state signal of the HDC function module 1 to the gateway assembly 3 through the CAN bus, and the gateway assembly 3 forwards the signal to the vehicle-mounted information entertainment terminal assembly 4 to control the working state of the HDC function touch switch 5.
In the control system, the vehicle-mounted information entertainment terminal assembly 4 sends the state signal of the HDC function touch switch 5 to the gateway assembly 3 through the CAN bus, and the gateway assembly 3 forwards the signal to the automobile electronic stability controller assembly 2 so as to control the working state of the HDC function module 1.
Example 2:
referring to fig. 2, the downhill auxiliary function switch control method includes the steps of:
the method comprises the steps that firstly, a power supply assembly 6 detects whether a finished automobile power supply is in a power-on state, when the finished automobile power supply is in the power-on state, the power supply assembly 6 supplies power to an automobile electronic stability controller assembly 2, a gateway assembly 3 and a vehicle-mounted information entertainment terminal assembly 4 through hard wires, and then the second step is executed; when the power supply of the whole vehicle is in a non-power-on state, executing a first step;
secondly, the HDC functional module 1 detects whether the HDC function has a fault, and if the HDC function has the fault, the third step is executed; if the HDC function is not in fault, executing a fourth step;
thirdly, the automotive electronic stability controller assembly 2 controls the HDC functional module 1 to set the HDC function to be in a fault state, the automotive electronic stability controller assembly 2 sends an HDC function fault state signal 'ESP _ HDC _ STATUS =0x3= error' to the gateway assembly 3 through the CAN bus, the gateway assembly 3 forwards the signal to the vehicle-mounted information entertainment terminal assembly 4 through the CAN bus, and the vehicle-mounted information entertainment terminal assembly 4 receives the signal and then controls the HDC function touch switch 5 to be in an illegal state, is arranged in grey, and is not controllable; then, executing the first step;
fourthly, the vehicle-mounted information entertainment terminal assembly 4 judges whether the cycle is the first cycle after the power-on, and if the cycle is the first cycle, the fifth step is executed; if not, executing the thirteenth step;
fifthly, the vehicle-mounted infotainment terminal assembly 4 sends a state signal "HU _ hdcstatset =0x0= off" of the HDC function touch switch 5 to the gateway assembly 3 through the CAN bus, the gateway assembly 3 forwards the signal to the vehicle electronic stability controller assembly 2 through the CAN bus, and the vehicle electronic stability controller assembly 2 receives the signal and then controls the HDC function module 1 to turn off the HDC function. Then, the automotive electronic stability controller assembly 2 sends an HDC function STATUS signal "ESP _ HDC _ STATUS =0 × 0= off" to the gateway assembly 3 through the CAN bus, the gateway assembly 3 forwards the signal to the in-vehicle infotainment terminal assembly 4 through the CAN bus, and the in-vehicle infotainment terminal assembly 4 receives the signal and then controls the HDC function touch switch 5 to be in an off state. Then executing the sixth step;
sixthly, the vehicle-mounted information entertainment terminal assembly 4 judges whether the driver clicks the HDC function touch switch 5, and if the driver clicks the HDC function touch switch 5, the seventh step is executed; if the driver does not click the HDC function touch switch 5, executing the first step;
seventhly, judging whether the state of the whole vehicle meets the HDC function starting condition or not by the HDC function module 1, and executing the eighth step if the state meets the HDC function starting condition; if the HDC function starting condition is not met, executing a ninth step;
eighthly, the vehicle-mounted infotainment terminal assembly 4 sends a state signal 'HU _ hdcstatset =0x1= on' of the HDC function touch switch 5 to the gateway assembly 3 through the CAN bus, the gateway assembly 3 forwards the signal to the automobile electronic stability controller assembly 2 through the CAN bus, and the automobile electronic stability controller assembly 2 receives the signal and then controls the HDC function module 1 to start the HDC function. Then, the automotive electronic stability controller assembly 2 sends an HDC function STATUS signal "ESP _ HDC _ STATUS =0x1= on" to the gateway assembly 3 through the CAN bus, the gateway assembly 3 forwards the signal to the vehicle-mounted infotainment terminal assembly 4 through the CAN bus, and the vehicle-mounted infotainment terminal assembly 4 receives the signal and then controls the HDC function touch switch 5 to be in an on state. Then executing the tenth step;
ninth, the vehicle-mounted infotainment terminal assembly 4 sends a state signal "HU _ hdcstatset =0x0= off" of the HDC function touch switch 5 to the gateway assembly 3 through the CAN bus, the gateway assembly 3 forwards the signal to the vehicle electronic stability controller assembly 2 through the CAN bus, and the vehicle electronic stability controller assembly 2 receives the signal and then controls the HDC function module 1 to turn off the HDC function. Then, the automotive electronic stability controller assembly 2 sends an HDC function STATUS signal "ESP _ HDC _ STATUS =0 × 0= off" to the gateway assembly 3 through the CAN bus, the gateway assembly 3 forwards the signal to the in-vehicle infotainment terminal assembly 4 through the CAN bus, and the in-vehicle infotainment terminal assembly 4 receives the signal and then controls the HDC function touch switch 5 to be in an off state. The first step is then performed.
Tenth step, the HDC functional module 1 judges whether the state of the whole vehicle meets the HDC function activation condition, and if the state meets the HDC function activation condition, the eleventh step is executed; if the HDC function activation condition is not met, executing a twelfth step;
step eleven, the automotive electronic stability controller assembly 2 controls the HDC functional module 1 to activate the HDC function, and then the first step is executed;
step ten, the automotive electronic stability controller assembly 2 controls the HDC functional module 1 to execute HDC function standby, and then executes the first step;
step thirteen, the HDC functional module 1 judges whether the HDC function is in the open state, if the HDC function is in the open state, the fourteenth step is executed; if the HDC function is in the closing state, executing the fifth step;
fourteenth, the automotive electronic stability controller assembly 2 controls the HDC function module 1 to execute HDC function activation/standby, and sends an HDC function STATUS signal "ESP _ HDC _ STATUS =0x1= on/0x2= stand by" to the gateway assembly 3 through the CAN bus, the gateway assembly 3 forwards the signal to the in-vehicle infotainment terminal assembly 4 through the CAN bus, and the in-vehicle infotainment terminal assembly 4 receives the signal and then controls the HDC function touch switch 5 to be in an on state. Then executing the fifteenth step;
fifteenth, the vehicle-mounted information entertainment terminal assembly 4 judges whether the driver clicks the HDC function touch switch 5, and if the driver clicks the HDC function touch switch 5, the sixteenth step is executed; if the driver does not click the HDC function touch switch 5, executing the tenth step;
sixthly, the vehicle-mounted infotainment terminal assembly 4 sends a state signal "HU _ hdcstatset =0x0= off" of the HDC function touch switch 5 to the gateway assembly 3 through the CAN bus, the gateway assembly 3 forwards the signal to the vehicle electronic stability controller assembly 2 through the CAN bus, and the vehicle electronic stability controller assembly 2 receives the signal and then controls the HDC function module 1 to turn off the HDC function. Then, the automotive electronic stability controller assembly 2 sends an HDC function STATUS signal "ESP _ HDC _ STATUS =0 × 0= off" to the gateway assembly 3 through the CAN bus, the gateway assembly 3 forwards the signal to the in-vehicle infotainment terminal assembly 4 through the CAN bus, and the in-vehicle infotainment terminal assembly 4 receives the signal and then controls the HDC function touch switch 5 to be in an off state. The first step is then performed.
Those of ordinary skill in the art will understand that: all or part of the steps for implementing the method embodiments may be implemented by hardware related to program instructions, and the program may be stored in a computer readable storage medium, and when executed, the program performs the steps including the method embodiments.
Claims (3)
1. A downhill auxiliary function switch control method is characterized in that: the method comprises the following steps:
the method comprises the steps that firstly, a power supply assembly detects whether a power supply of the whole vehicle is in a power-on state, and if yes, the second step is executed; if not, executing the first step;
secondly, the HDC functional module detects whether the HDC function has a fault, and if the HDC function has the fault, the third step is executed; if the HDC function has no fault, executing the fourth step;
thirdly, the automotive electronic stability controller assembly controls the HDC function module to set the HDC function to be in a fault state, and the automotive electronic stability controller assembly sends an HDC function fault state signal to the gateway assembly through the CAN bus, the gateway assembly forwards the signal to the vehicle-mounted information entertainment terminal assembly through the CAN bus, and the vehicle-mounted information entertainment terminal assembly receives the signal and then controls the HDC function touch switch to be in an illegal state; then, executing the first step;
fourthly, the vehicle-mounted information entertainment terminal assembly judges whether the cycle is the first cycle after the power-on, and if the cycle is the first cycle, the fifth step is executed; if not, executing the thirteenth step;
fifthly, the vehicle-mounted information entertainment terminal assembly sends an HDC function touch switch closing state signal to the gateway assembly through the CAN bus, the gateway assembly forwards the signal to the automobile electronic stability controller assembly through the CAN bus, and the automobile electronic stability controller assembly controls the HDC function module to close the HDC function after receiving the signal; the automotive electronic stability controller assembly sends an HDC function closing state signal to the gateway assembly through the CAN bus, the gateway assembly forwards the signal to the vehicle-mounted information entertainment terminal assembly through the CAN bus, and the vehicle-mounted information entertainment terminal assembly controls the HDC function touch switch to be in a closing state after receiving the signal;
sixthly, judging whether the driver clicks the HDC function touch switch or not by the vehicle-mounted information entertainment terminal assembly, and executing the seventh step if the driver clicks the HDC function touch switch; if the driver does not click the HDC function touch switch, executing the first step;
seventhly, judging whether the state of the whole vehicle meets the HDC function starting condition or not by the HDC function module, and executing the eighth step if the state meets the HDC function starting condition; if the HDC function starting condition is not met, executing a ninth step;
eighthly, the vehicle-mounted information entertainment terminal assembly sends an HDC function touch switch starting state signal to the gateway assembly through the CAN bus, the gateway assembly forwards the signal to the automobile electronic stability controller assembly through the CAN bus, and the automobile electronic stability controller assembly controls the HDC function module to start the HDC function after receiving the signal; the automotive electronic stability controller assembly sends an HDC function starting state signal to the gateway assembly through the CAN bus, the gateway assembly forwards the signal to the vehicle-mounted information entertainment terminal assembly through the CAN bus, and the vehicle-mounted information entertainment terminal assembly controls the HDC function touch switch to be in a starting state after receiving the signal and then executes the tenth step;
ninthly, the vehicle-mounted information entertainment terminal assembly sends an HDC function touch switch closing state signal to the gateway assembly through the CAN bus, the gateway assembly forwards the signal to the automobile electronic stability controller assembly through the CAN bus, and the automobile electronic stability controller assembly controls the HDC function module to close the HDC function after receiving the signal; the automotive electronic stability controller assembly sends an HDC function closing state signal to the gateway assembly through the CAN bus, the gateway assembly forwards the signal to the vehicle-mounted information entertainment terminal assembly through the CAN bus, and the vehicle-mounted information entertainment terminal assembly controls the HDC function touch switch to be in a closing state after receiving the signal and then executes the first step;
tenth step, judging whether the state of the whole vehicle meets the HDC function activation condition by the HDC function module, and executing the eleventh step if the state meets the HDC function activation condition; if the HDC function activation condition is not met, executing a twelfth step;
step ten, the automotive electronic stability controller assembly controls the HDC functional module to activate the HDC function, and then the first step is executed;
step ten, the automotive electronic stability controller assembly controls the HDC functional module to execute HDC function standby, and then executes the first step;
step thirteen, the HDC functional module judges whether the HDC function is in an open state, if the HDC function is in the open state, the fourteenth step is executed; if the HDC function is in a closed state, executing a fifth step;
fourteenth, the automotive electronic stability controller assembly controls the HDC function module to execute HDC function activation/standby, and sends an HDC function activation/standby state signal to the gateway assembly through the CAN bus, the gateway assembly forwards the signal to the vehicle-mounted infotainment terminal assembly through the CAN bus, and the vehicle-mounted infotainment terminal assembly controls the HDC function touch switch to be in an on state after receiving the signal;
fifteenth, the vehicle-mounted information entertainment terminal assembly judges whether the driver clicks the HDC function touch switch or not, and if the driver clicks the HDC function touch switch, the sixteenth step is executed; if the driver does not click the HDC function touch switch, executing a tenth step;
sixthly, the vehicle-mounted information entertainment terminal assembly sends an HDC function touch switch closing state signal to the gateway assembly through the CAN bus, the gateway assembly forwards the signal to the automobile electronic stability controller assembly through the CAN bus, and the automobile electronic stability controller assembly controls the HDC function module to close the HDC function after receiving the signal; the automobile electronic stability controller assembly sends an HDC function closing state signal to the gateway assembly through the CAN bus, the gateway assembly forwards the signal to the vehicle-mounted information entertainment terminal assembly through the CAN bus, the vehicle-mounted information entertainment terminal assembly controls the HDC function touch switch to be in a closing state after receiving the signal, and then the first step is executed.
2. The method according to claim 1, wherein in the first step, when the power supply of the whole vehicle is in a power-on state, the power supply assembly supplies power to the vehicle electronic stability controller assembly, the gateway assembly and the vehicle infotainment terminal assembly through hard wires, and then the second step is executed.
3. A method according to claim 1, characterized in that in the third step, when the HDC function touch switch is in an illegal state, the control is displayed as gray and is not controllable.
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