Vehicle control system and vehicle control method

Abstract

The present invention provides a vehicle control system and a vehicle control method. The vehicle control system includes a power supply module and a vehicle detection device. The power supply module has a power signal. The vehicle detection device includes a controller and a monitoring module. The controller is coupled to the power supply module through a power cable to receive the power signal. The controller determines that the vehicle detection device operates in a first mode or a second mode according to the power signal to enable the monitoring module. The present invention can perform parking monitoring in a low power consumption manner when the vehicle is turned off.

Description

Technical Field

[0001] The present invention relates to a control system, and particularly to a vehicle control system and a vehicle control method. Background Art

[0002] An automobile or a heavy motorcycle can be connected to an additional electronic device (such as a dash cam). Generally, the dash cam can be connected to a cigarette lighter socket or a constant power socket to obtain electrical energy. However, when the vehicle is turned off, for the dash cam connected to the cigarette lighter socket, the power supply is cut off, resulting in the dash cam being unable to perform parking monitoring. For the dash cam connected to the constant power socket, although the dash cam can still obtain electrical energy, excessive power consumption during parking monitoring will cause the battery to run out of power. Summary of the Invention

[0003] Embodiments of the present invention provide a vehicle control system that can perform parking monitoring in a low-power consumption manner when the vehicle is turned off.

[0004] The vehicle control system according to an embodiment of the present invention includes a power supply module and a vehicle detection device. The power supply module has a power signal. The vehicle detection device includes a first controller and a monitoring module. The first controller is coupled to the power supply module through a power cable to receive the power signal. The first controller determines whether the vehicle detection device operates in a first mode or a second mode according to the power signal to enable the monitoring module.

[0005] Embodiments of the present invention also provide a vehicle control method. The vehicle control method includes the following steps. Transmit the power signal of the power supply module through a power cable. Determine whether the vehicle detection device operates in a first mode or a second mode according to the power signal, where the vehicle detection device is coupled to the power cable and includes a monitoring module. In the first mode, enable the monitoring module. In the second mode, enable the monitoring module.

[0006] Based on the above, the vehicle control system and the vehicle control method according to the embodiments of the present invention can transmit the power signal through the power cable, switch the operation mode of the vehicle detection device according to the power signal, and enable the monitoring module in each operation mode. In this way, the vehicle detection device can be easily installed in the vehicle, operate in different operation modes according to the state of the vehicle to reduce power consumption, and the monitoring module can perform monitoring at any time.

[0007] In order to make the above features and advantages of the present invention more obvious and understandable, the following embodiments are listed and described in detail with the accompanying drawings. Brief Description of the Drawings

[0008] Figure 1 is a circuit block diagram of a vehicle control system drawn according to an embodiment of the present invention.

[0009] Figure 2 is a flowchart of a vehicle control method drawn according to an embodiment of the present invention.

[0010] Figure 3 is a circuit block diagram of a vehicle control system drawn according to an embodiment of the present invention.

[0011] Figure 4 is according to the present invention Figure 3 is a flowchart of a vehicle control method drawn according to an embodiment of the present invention.

[0012] Figure 5 is according to the present invention Figure 3 is a schematic diagram of the operation of a vehicle control system drawn according to an embodiment of the present invention.

[0013] Figure 6 is according to the present invention Figure 3 is a schematic diagram of an on-vehicle diagnostic socket drawn according to an embodiment of the present invention.

[0014] Among them, a brief description of the symbols in the drawings is as follows:

[0015] 100, 300: Vehicle control system; 110, 310: Power supply module; 120, 320: Vehicle detection device; 121, 321: First controller; 122, 322: Monitoring module; 123, 323: First operation module; 124, 324: Second operation module; 130, 330: Power cable; 311: Second controller; 312, 612: On-vehicle diagnostic socket; 313: Battery; E1~E4: Events; Low_THR: Fourth threshold; Off_THR: Third threshold; P1~P16: Pins; Poweron_THR: Second threshold; S210~S240, S410~S491: Steps; ST_ACC: Accessory power on position; ST_LOCK: Lock position; ST_ON: On position; ST_START: Start position; t1~t6: Time; V1: First voltage value; V2: Second voltage value; Valid_THR: First threshold; VBAT: Power signal; VST: Status signal. Detailed implementation manners

[0016] Some embodiments of the present invention will be described in detail below in conjunction with the drawings. For the reference numerals of the components cited in the following description, when the same reference numerals appear in different drawings, they will be regarded as the same or similar components. These embodiments are only a part of the present invention and do not disclose all the implementable ways of the present invention. More precisely, these embodiments are only examples within the scope of the patent application of the present invention.

[0017] Figure 1 is a circuit block diagram of a vehicle control system drawn according to an embodiment of the present invention. Refer toFigure 1 The vehicle control system 100 can be applicable to vehicles such as automobiles or heavy motorcycles. In this embodiment, the vehicle control system 100 can include a power supply module 110, a vehicle detection device 120, and a power cable 130. The power supply module 110 can be coupled to the vehicle detection device 120 through the power cable 130.

[0018] In this embodiment, the power supply module 110 has a power signal VBAT to supply electrical energy to the vehicle and / or the vehicle detection device 120. The power supply module 110 can be, for example, a storage battery module. The power supply module 110 can include a lead-acid battery.

[0019] In this embodiment, the power cable 130 can transmit the power signal VBAT. In some embodiments, the power cable 130 can also transmit the status signal of the vehicle (such as Figure 3 the status signal VST as shown). The power cable 130 can be, for example, an On-Board Diagnostics (OBD-II) cable. The power cable 130 can transmit signals compliant with the OBD-II communication protocol, such as signals compliant with the Controller Area Network (CANBUS) communication protocol. In some embodiments, the power cable 130 can be, for example, a J1939 cable to transmit signals compliant with the J1939 communication protocol.

[0020] In this embodiment, the vehicle detection device 120 is detachably connected to the power cable 130, or can be detachably connected to the power supply module 110 together with the power cable 130. The vehicle detection device 120 can operate based on the power signal VBAT. The vehicle detection device 120 can be, for example, a dash cam. In this embodiment, the vehicle detection device 120 can include a first controller 121, a monitoring module 122, a first operation module 123, and a second operation module 124. The first controller 121 is coupled to the monitoring module 122, the first operation module 123, and the second operation module 124. The first controller 121 can be coupled to the power supply module 110 through the power cable 130 to receive the power signal VBAT to receive the electrical energy provided to the vehicle detection device 120.

[0021] In this embodiment, the first controller 121 can also process the power signal VBAT to convert the power signal VBAT from an analog signal into a digital signal and obtain the voltage value of the power signal VBAT. The first controller 121 can also control the operations of the various modules (such as the monitoring module 122) in the vehicle detection device 120. The first controller 121 can be, for example, a signal converter, a Field Programmable Gate Array (FPGA), a Central Processing Unit (CPU), or other programmable general-purpose or special-purpose microprocessors, Digital Signal Processors (DSPs), programmable controllers, Application Specific Integrated Circuits (ASICs), Programmable Logic Devices (PLDs), or other similar devices or combinations of these devices, which can load and execute relevant firmware or software to implement the control function.

[0022] In this embodiment, the monitoring module 122 can monitor events around and / or of the vehicle itself to implement the monitoring function. The monitoring module 122 can be, for example, a micro camera and includes a camera and a memory. The camera can record images (such as photos, videos, or time-lapse videos) of the environment where the vehicle is located. The memory can store the User interface (UI), firmware or software, program code related to the operation of the vehicle detection device 120, and the aforementioned images. In this embodiment, the memory can be, for example, a Dynamic Random Access Memory (DRAM), a Flash memory, or a Non-Volatile Random Access Memory (NVRAM), etc. In some embodiments, the monitoring module 122 can also include sensors. The sensors can sense the surroundings of the vehicle to sense whether an object passes by or collides with the vehicle.

[0023] Figure 2 is a flowchart of a vehicle control method drawn according to an embodiment of the present invention. Refer to Figure 1 and Figure 2 , the vehicle control system 100 can execute the following steps S210 - S240 to control the operation of the vehicle detection device 120. In this embodiment, steps S210 - S240 can be applied to the following exemplary situations.

[0024] When the vehicle is in a parked state, the vehicle gear position is in the Lock position. At this time, the power supply module 110 stops supplying power to the vehicle's engine and accessory devices such as the windows and radio. The voltage value of the power supply signal VBAT can be within a first range, and the vehicle detection device 120 can operate in a first mode.

[0025] When the vehicle is in a state of waiting to start or waiting to park, the vehicle gear position is in the Accessory (ACC) position. At this time, the power supply module 110 can supply electrical energy to all or part of the accessory devices, and the engine is turned off. The voltage value of the power supply signal VBAT can be within a second range or a third range, and the vehicle detection device 120 can operate in a first mode.

[0026] When the vehicle is ready to start, the vehicle gear position switches from the Accessory position to the Start position. At this time, the voltage value of the power supply signal VBAT can have an amplitude change (such as a sudden drop). Then, the vehicle gear position will switch from the Start position to the On position. The power supply module 110 can start supplying electrical energy to the engine and all accessory devices, and the engine is started. The voltage value of the power supply signal VBAT can be within a third range, and the vehicle detection device 120 can operate in a second mode.

[0027] When the vehicle is in a running (or On) state, the vehicle gear position is in the On position. At this time, the power supply module 110 can supply electrical energy to the engine and all accessory devices, and the engine is started. The voltage value of the power supply signal VBAT can be within a fourth range, and the vehicle detection device 120 can operate in a second mode.

[0028] In step S210, the power supply signal VBAT of the power supply module 110 is transmitted through the power cable 130 to the first controller 121 of the vehicle detection device 120 to supply electrical energy to the vehicle detection device 120. That is, the first controller 121 can obtain the voltage value of the power supply signal VBAT at any time.

[0029] In step S220, the first controller 121 determines whether the vehicle detection device 120 operates in the first mode or the second mode according to the power supply signal VBAT. Since the voltage value of the power supply signal VBAT can correspond to different states of the vehicle (parked state, waiting to start state, waiting to park state, ready to start state, or running state), the first controller 121 can switch the operation mode of the vehicle detection device 120 according to the state of the vehicle.

[0030] In step S230, when the vehicle detection device 120 operates in the first mode, the monitoring module 122 is enabled by the first controller 121, and at least one of the first operation module 123 and the second operation module 124 is disabled. That is, when the voltage value of the power supply signal VBAT is within the first range (corresponding to the parked state) or within the second range (corresponding to the state of waiting to start), the vehicle detection device 120 has a first power consumption and operates in the first mode, and the monitoring module 122 is enabled to perform monitoring when the engine is not started.

[0031] In step S240, when the vehicle detection device 120 operates in the second mode, the monitoring module 122 is enabled by the first controller 121, and the first operation module 123 and the second operation module 124 are enabled. That is, when the voltage value of the power supply signal VBAT is within the third range (corresponding to the state of ready to start) or within the fourth range (corresponding to the started state), the vehicle detection device 120 has a second power consumption and operates in the second mode, and the monitoring module 122 is enabled to perform monitoring when the engine is started.

[0032] It is worth mentioning here that the first controller 121 can enable the monitoring module 122 in each operation mode, so that the monitoring module 122 can perform monitoring at any time. Since the power consumption of the monitoring module 122 is extremely low, even when the vehicle is in the parked state, the vehicle detection device 120 can perform parking monitoring in a low-power consumption manner (i.e., the first power consumption) to avoid excessive or too fast consumption of the electrical energy of the power supply module 110 and being unable to start the vehicle, and can reduce the power consumption. On the other hand, the vehicle detection device 120 can control the operation mode by itself without additional installation of a control box or switch, and can be simply installed in the vehicle by connecting the power cable 130.

[0033] Figure 3 is a block diagram of a vehicle control system drawn according to an embodiment of the present invention. Refer to Figure 3 , the vehicle control system 300 may include a power supply module 310, a vehicle detection device 320, and a power cable 330. The vehicle detection device 320 includes a first controller 321, a monitoring module 322, a first operation module 323, and a second operation module 324. Figure 3 The vehicle control system 300, the power supply module 310, the vehicle detection device 320, the first controller 321, the monitoring module 322, and the power cable 330 shown can be referred to Figure 1 the relevant descriptions of the vehicle control system 100 shown and analogized, and will not be repeated here.

[0034] In this embodiment, the first operation module 323 and the second operation module 324 are respectively coupled to the first controller 321. The first operation module 323 can be controlled by the first controller 321 to be disabled in the first mode and enabled in the second mode. The first operation module 323 can be, for example, a system on a chip (SOC) related to the operation of the vehicle detection device 320. In some embodiments, the first operation module 323 can be enabled by the first controller 121 in the first mode.

[0035] In this embodiment, the second operation module 324 can be controlled by the first controller 321 to be enabled in the first mode and enabled in the second mode. The second operation module 324 can be, for example, a real-time clock (RTC) circuit related to the operation of the vehicle detection device 320. In some embodiments, the second operation module 324 can be disabled by the first controller 321 in the first mode.

[0036] In Figure 3 the illustrated embodiment, the power supply module 310 can include a second controller 311, an on-vehicle diagnostic socket 312, and a battery 313. The on-vehicle diagnostic socket 312 is coupled to the battery 313 and the second controller 311.

[0037] In this embodiment, the battery 313 can generate a power signal VBAT. The battery 313 can be, for example, a lead-acid battery.

[0038] In this embodiment, the second controller 311 can generate a status signal VST according to the vehicle gear of the vehicle. The aforementioned vehicle gears include a lock gear (Lock), an accessory power-on gear (ACC), an on gear (ON), and a start gear (START). The second controller 311 can be, for example, a signal converter, a field programmable gate array (FPGA), a central processing unit (CPU), or other programmable general-purpose or special-purpose microprocessors, digital signal processors (DSPs), programmable controllers, application specific integrated circuits (ASICs), programmable logic devices (PLDs), or other similar devices or combinations of these devices, which can load and execute relevant firmware or software to control the power supply module 310.

[0039] In this embodiment, the on-vehicle diagnostic socket 312 is also connected to a power cable 330 to output a power signal VBAT and a status signal VST to the first controller 321. The on-vehicle diagnostic socket 312 can be, for example, an OBD-II socket.

[0040] In this embodiment, the first controller 321 can operate the vehicle detection device 320 in a first mode according to the power signal VBAT, and can determine whether to disable at least one of the first operation module 323 and the second operation module 324 in the first mode according to the status signal VST. That is to say, in the first mode, the first controller 321 can enable the monitoring module 322 to perform monitoring, and disable at least one of the first operation module 323 and the second operation module 324 to reduce power consumption.

[0041] On the other hand, the first controller 321 can operate the vehicle detection device 320 in a second mode according to the power signal VBAT to enable the monitoring module 322, the first operation module 323, and the second operation module 324, so as to enable all functions of the vehicle detection device 320 when the vehicle is in a ready-to-start or started state.

[0042] It should be noted that both the power signal VBAT and the status signal VST can be transmitted in the power cable 330 to provide electrical energy and vehicle status information to the vehicle detection device 320 respectively. Therefore, the vehicle control system 300 does not need to be additionally configured with a signal line for transmitting the status signal VST, nor does it need to be additionally configured with a power switch or a power controller, and can obtain the power signal VBAT and the status signal VST through the power cable 330 to control its own operation mode.

[0043] Figure 4 is drawn according to an embodiment of the present invention Figure 3 a flowchart of a vehicle control method. Figure 5 is drawn according to an embodiment of the present invention Figure 3 a working schematic diagram of a vehicle control system. In Figure 5 the horizontal axis is the operation time of the vehicle control system, and the vertical axis is the voltage value. At the same time, referring to Figures 3 to 5 the vehicle control system 300 can execute the following steps S410 to S490 to control the operation of the vehicle detection device 320.

[0044] In step S410, when the vehicle is in a parked state or a state of waiting to start, the vehicle detection device 320 operates in the first mode to perform parking monitoring in a low-power consumption manner.

[0045] Specifically, when the vehicle is in the parked state, the vehicle gear is in the locked gear ST_LOCK. During this period (i.e., time t1 to t2), the status signal VST has a first voltage value V1, and the voltage value of the power supply signal VBAT is a first value (for example, within the range of 12.4 volts (V) to 12.8 V). When the vehicle is switched from the parked state to the pre-start state, the vehicle gear is switched from the locked gear ST_LOCK to the accessory power-on gear ST_ACC. At this time (i.e., time t2), the status signal VST generates a falling edge, and the power supply signal VBAT slightly decreases. When the vehicle is in the pre-start state, the vehicle gear is the accessory power-on gear ST_ACC. During this period (i.e., time t2 to t3), the status signal VST has a second voltage value V2, and the voltage value of the power supply signal VBAT is a second value (for example, within the range of 11.9 V to 12.5 V). In this embodiment, the first value of the power supply signal VBAT is higher than the second value. The first value and the second value of the power supply signal VBAT are respectively higher than the first threshold Valid_THR.

[0046] In step S420, in the first mode, the first controller 321 determines whether the voltage value of the power supply signal VBAT is greater than or equal to the first threshold Valid_THR. If the result of step S420 is negative, the vehicle control system 300 re-executes step S410 to maintain operation in the first mode. Conversely, the vehicle control system 300 executes step S430 to further determine whether the vehicle is ready to start.

[0047] When the vehicle is ready to start, the vehicle gear is switched from the accessory power-on gear ST_ACC to the start gear ST_START. During this period (i.e., time t3 to t4), the status signal VST has a second voltage value V2. The voltage value of the power supply signal VBAT drops suddenly due to the event E1 in the early stage of this period, then rises rapidly, and is greater than the second threshold Poweron_THR due to the event E2 in the later stage of this period. Then (i.e., time t4), the vehicle gear is switched from the start gear ST_START to the on gear ST_ON to complete the start.

[0048] In step S430, in the first mode, when the voltage value of the power supply signal VBAT is greater than or equal to the first threshold Valid_THR, the first controller 321 determines whether the voltage value of the power supply signal VBAT has an amplitude change (e.g., a sudden drop due to event E1) during the first period (i.e., the early stage within time t3 to t4) and is greater than the second threshold Poweron_THR during the second period (i.e., the later stage within time t3 to t4) to decide whether to switch the vehicle detection device 320 to the second mode. If the result of step S430 is negative, the vehicle control system 300 re-executes step S410 to maintain operation in the first mode. Conversely, it indicates that the vehicle is ready to start and will enter the starting state, and the vehicle control system 300 executes step S440.

[0049] In step S440, when the vehicle is in the starting state, the vehicle detection device 320 operates in the second mode and performs parking monitoring in a normal working manner.

[0050] Specifically, when the vehicle is in the starting state, the vehicle gear is in the engaged gear ST_ON. During this period (i.e., time t4 to t5), the status signal VST has a second voltage value V2, and the voltage value of the power supply signal VBAT is a third value (e.g., within the range of 13.2 volts (V) to 13.8 V). In this embodiment, the third value of the power supply signal VBAT is higher than the second threshold Poweron_THR.

[0051] In step S450, in the second mode, the first controller 321 determines whether the voltage value of the power supply signal VBAT is less than the third threshold Off_THR. If the result of step S450 is negative, the vehicle control system 300 re-executes step S450 to maintain operation in the second mode. Conversely, the vehicle control system 300 executes step S460 to further determine whether the vehicle enters the standby parking state.

[0052] When the vehicle switches from the starting state to the standby parking state, the vehicle gear switches from the engaged gear ST_ON to the accessory power-on gear ST_ACC. At this time (i.e., time t5), the status signal VST has a second voltage value V2, and the voltage value of the power supply signal VBAT starts to drop. When the vehicle is in the standby parking state, the vehicle gear is in the accessory power-on gear ST_ACC. During this period (i.e., time t5 to t6), the status signal VST has a second voltage value V2, and the voltage value of the power supply signal VBAT is less than the third threshold Off_THR due to event E3.

[0053] In step S460, in the second mode, when the voltage value of the power supply signal VBAT is less than the third threshold Off_THR, the first controller 321 determines whether the voltage value of the power supply signal VBAT is less than or equal to the fourth threshold Low_THR to decide whether to switch the vehicle detection device 320 to the first mode. If the result of step S460 is yes, it means that the vehicle will enter the power module 310 power shortage state, and the vehicle control system 300 executes step S470. On the contrary, the vehicle control system 300 executes step S480 to further clarify whether the vehicle will really enter the parking state.

[0054] When the vehicle returns to the parking state, the vehicle gear is switched from the accessory power-on gear ST_ACC to the lock gear ST_LOCK. At this time (i.e., time t6), the status signal VST generates a rising edge, and the voltage value of the power supply signal VBAT is the fourth value. Then, when the vehicle is in the parking state, the vehicle gear is the lock gear ST_LOCK. During this period (i.e., after time t6), the status signal VST has the first voltage value V1, and the voltage value of the power supply signal VBAT is less than or equal to the fourth threshold Low_THR due to the event E4.

[0055] In step S470, in the second mode, when the voltage value of the power supply signal VBAT is less than or equal to the fourth threshold Low_THR, the first controller 321 disables the first operation module 323 and the second operation module 324, and enables the monitoring module 322. Then, the vehicle control system 300 re-executes step S410 to switch the vehicle detection device 300 to the first mode.

[0056] In step S480, in the second mode, when the voltage value of the power supply signal VBAT is not less than or equal to the fourth threshold Low_THR, the first controller 321 determines whether the voltage value of the status signal VST is the first voltage value V1 to determine whether the vehicle is in the parking state or the temporary stop state and decide whether to switch the vehicle detection device 300 to the first mode. If the result of step S480 is no, it means that the vehicle does not really enter the parking state (such as the temporary stop state), and the vehicle control system 300 re-executes step S450 to maintain the operation in the second mode. On the contrary, it means that the vehicle really enters the parking state, and the vehicle control system 300 executes step S490.

[0057] In step S490, in the second mode, when the voltage value of the status signal VST is the first voltage value V1, the first operation module 323 is disabled by the first controller 321, and the second operation module 324 and the monitoring module 322 are enabled. Then, in step S491, it is determined whether the voltage value of the power supply signal VBAT is less than or equal to the fourth threshold Low_THR. If the result of step S491 is negative, the vehicle control system 300 re-executes step S491 to continuously make the determination. If the result of step S491 is positive, it indicates that the vehicle enters the power shortage state of the power module 310, and the vehicle control system 300 executes step S470. Then, the vehicle control system 300 re-executes step S410 to switch the vehicle detection device 300 to the first mode.

[0058] In this embodiment, the first threshold Valid_THR can be, for example, 12.2V. The second threshold Poweron_THR can be, for example, 13.2V. The third threshold Off_THR can be, for example, 13.0V. The fourth threshold Low_THR can be, for example, 11.6V. Figure 5 The voltage value of the power supply signal VBAT, the voltage value of the status signal VST, and the respective numerical values of the above-mentioned multiple thresholds Valid_THR, Poweron_THR, Off_THR, and Low_THR are only for illustrative purposes and are not limited thereto.

[0059] Figure 6 is drawn according to an embodiment of the present invention Figure 3 schematic diagram of an on-vehicle diagnostic socket. Figure 6 The on-vehicle diagnostic socket 612 shown can refer to Figure 3 the relevant description of the on-vehicle diagnostic socket 312 shown and be analogized accordingly, and will not be repeated here.

[0060] In Figure 6 the embodiment shown, the connector of the on-vehicle diagnostic socket 612 includes a plurality of pins P1 to P16. These pins P1 to P16 can transmit signals conforming to the OBD-II communication protocol. For example, pin P5 can transmit a ground signal. Pin P16 can transmit the power supply signal VBAT. Pins P6 and P14 can transmit CANBUS signals. Pin P13 can transmit the status signal VST.

[0061] In summary, the vehicle control system and vehicle control method according to an embodiment of the present invention can enable the vehicle detection device to operate in different operation modes to reduce power consumption, and can be monitored at any time through the enabled monitoring module in each operation mode, without causing the battery to run out during parking monitoring. In addition, the vehicle detection device can be connected to the power module through an OBD-II cable, and has a simple installation method. In some embodiments, the vehicle detection device can assist in judging the state of the vehicle according to the state signal to switch the operation mode, which can improve the accuracy of control.

[0062] The foregoing is only a preferred embodiment of the present invention, but it is not intended to limit the scope of the present invention. Any person skilled in the art can make further improvements and changes without departing from the spirit and scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the scope defined by the claims of this application.

Claims

1. A vehicle control system, characterized in that, Comprising: A power supply module having a power signal; And A vehicle detection device including a first controller, a monitoring module, a first operation module, and a second operation module. The first controller is coupled to the power supply module through a power cable to receive the power signal for receiving the electrical energy supplied to the vehicle detection device. The monitoring module monitors events around the vehicle or the vehicle itself, and the first operation module and the second operation module are modules different from the monitoring module. Wherein the first controller determines that the vehicle detection device operates in a first mode or a second mode according to the power signal to enable the monitoring module. Wherein in the first mode, the first controller enables the monitoring module and disables at least one of the first operation module and the second operation module, and in the second mode, the first controller enables the monitoring module and enables the first operation module and the second operation module. Wherein the power supply module includes a second controller, and the second controller generates a vehicle status signal according to the vehicle gear position. The first controller receives the power signal and the vehicle status signal through the power cable. When the vehicle detection device is determined to operate in the first mode according to the power signal, it is determined whether to disable at least one of the first operation module and the second operation module in the first mode according to the vehicle status signal.

2. The vehicle control system according to claim 1, wherein the power cable is a second-generation on-vehicle diagnostic system cable.

3. The vehicle control system according to claim 1, wherein the power supply module further includes: A battery that generates the power signal; And An on-vehicle diagnostic socket coupled to the battery and the second controller, and connecting the power cable to output the power signal and the vehicle status signal to the first controller.

4. The vehicle control system according to claim 1, wherein in the first mode, the first controller determines whether the voltage value of the power signal is greater than or equal to a first threshold.

5. The vehicle control system according to claim 4, wherein in the first mode, when the voltage value of the power signal is greater than or equal to the first threshold, the first controller determines whether the voltage value of the power signal has an amplitude change during a first period and is greater than a second threshold during a second period to determine whether to switch the vehicle detection device to the second mode.

6. The vehicle control system according to claim 1, wherein in the second mode, the first controller determines whether the voltage value of the power signal is less than a third threshold.

7. The vehicle control system according to claim 6, wherein in the second mode, when the voltage value of the power signal is less than the third threshold, the first controller determines whether the voltage value of the power signal is less than or equal to a fourth threshold to determine whether to switch the vehicle detection device to the first mode.

8. The vehicle control system according to claim 7, wherein in the second mode, when the voltage value of the power signal is less than or equal to the fourth threshold, the first controller disables the first operation module and the second operation module and enables the monitoring module to switch the vehicle detection device to the first mode.

9. The vehicle control system according to claim 7, wherein in the second mode, when the voltage value of the power signal is not less than or equal to the fourth threshold, the first controller determines whether the voltage value of the status signal of the power module is the first voltage value to decide whether to switch the vehicle detection device to the first mode.

10. The vehicle control system according to claim 9, wherein in the second mode, when the voltage value of the status signal is the first voltage value, the first controller disables the first operation module and enables the second operation module and the monitoring module to switch the vehicle detection device to the first mode.

11. A vehicle control method, characterized in that, Comprising: Transmitting a power signal of a power module through a power cable to supply electrical energy to a vehicle detection device; Determining whether the vehicle detection device operates in a first mode or a second mode according to the power signal, wherein the vehicle detection device is coupled to the power cable and includes a monitoring module to monitor events around the vehicle or the vehicle itself; In the first mode, enabling the monitoring module and disabling at least one of the first operation module and the second operation module of the vehicle detection device; and In the second mode, enabling the monitoring module, the first operation module and the second operation module, wherein the first operation module and the second operation module are modules different from the monitoring module, The vehicle control method further includes: Generating a vehicle status signal according to a vehicle gear; And In the case where the vehicle detection device is operated in the first mode according to the power signal, determining whether to disable at least one of the first operation module and the second operation module in the first mode according to the vehicle status signal.

12. The vehicle control method according to claim 11, wherein the power cable is a second-generation on-vehicle diagnostic system cable.

13. The vehicle control method according to claim 11, further includes: Transmitting the vehicle status signal through the power cable.

14. The vehicle control method according to claim 11, further includes: In the first mode, determining whether the voltage value of the power signal is greater than or equal to a first threshold.

15. The vehicle control method according to claim 14, further includes: In the first mode, when the voltage value of the power signal is greater than or equal to the first threshold, determining whether the voltage value of the power signal has an amplitude change within a first period and is greater than a second threshold within a second period to decide whether to switch the vehicle detection device to the second mode.

16. The vehicle control method according to claim 11, further includes: In the second mode, determining whether the voltage value of the power signal is less than a third threshold.

17. The vehicle control method according to claim 16, further includes: In the second mode, when the voltage value of the power signal is less than the third threshold, determining whether the voltage value of the power signal is less than or equal to a fourth threshold to decide whether to switch the vehicle detection device to the first mode.

18. The vehicle control method according to claim 17, further includes: In the second mode, when the voltage value of the power signal is less than or equal to the fourth threshold, the first operation module and the second operation module are disabled, and the monitoring module is enabled to switch the vehicle detection device to the first mode.

19. The vehicle control method according to claim 17, further comprising: In the second mode, when the voltage value of the power signal is not less than or equal to the fourth threshold, it is determined whether the voltage value of the status signal of the power supply module is the first voltage value to determine whether to switch the vehicle detection device to the first mode.

20. The vehicle control method according to claim 19, further comprising: In the second mode, when the voltage value of the status signal is the first voltage value, the first operation module is disabled, and the second operation module and the monitoring module are enabled to switch the vehicle detection device to the first mode.

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