Guard mode control circuit, system, vehicle and method

Abstract

The invention discloses a sentry mode control circuit and system, a vehicle and a method, which are used for solving the technical problem that the endurance mileage is influenced due to continuous consumption of the electric quantity of the whole vehicle in the sentry mode control in the traditional scheme. The control circuit part comprises a bus transceiver module, a micro-control module and a voltage conversion module; the power supply end of the micro-control module is connected with the power supply output end of the voltage conversion module, the power supply input end of the voltage conversion module is used for being connected with the voltage output end of the relative displacement sensing assembly, and the relative displacement sensing assembly is used for outputting variable voltage according to the relative displacement change of a vehicle body and wheels. The signal input end of the bus receiving and transmitting module is connected with the signal output end of the micro-control module, and the signal output end of the bus receiving and transmitting module is used for being connected with a vehicle bus; and the voltage conversion module is used for converting the change voltage into wake-up voltage and outputting the wake-up voltage to the micro-control module so as to wake up the micro-control module to send a sentry mode trigger signal to the vehicle bus.

Description

Technical Field

[0001] The present application relates to the technical field of automobiles, and particularly relates to a sentry mode control circuit, system, vehicle and method. Background Art

[0002] The vehicle sentry mode is an auxiliary control mode for implementing safety management on the vehicle. When the sentry mode is triggered, a series of sentry response processes will be triggered to ensure the safety of the vehicle.

[0003] Currently in this field, the security and anti-theft strategy for triggering the above-mentioned sentry mode mainly relies on real-time detection by sensors. For example, these sensors can be cameras, vehicle body accelerometers, infrared sensors, etc. Therefore, the above sensors need to be powered on all the time. Although the sensors will be in a sleep state when there is no abnormality, however, the long-term sleep will also consume the power of the battery life. Therefore, the sentry mode control in the traditional solution will continuously consume the vehicle power and affect the battery life. Summary of the Invention

[0004] The present application provides a sentry mode control circuit, system, vehicle and method, which solves the technical problem that the sentry mode control in the traditional solution will continuously consume the vehicle power and affect the battery life.

[0005] A sentry mode control circuit is provided, which includes a bus transceiver module, a micro-control module and a voltage conversion module;

[0006] The power supply end of the micro-control module is connected to the power supply output end of the voltage conversion module. The power supply input end of the voltage conversion module is used to be connected to the voltage output end of the relative displacement sensing component. The relative displacement sensing component is used to output a varying voltage according to the relative displacement change between the vehicle body and the wheels. The signal input end of the bus transceiver module is connected to the signal output end of the micro-control module, and the signal output end of the bus transceiver module is used to be connected to the vehicle bus;

[0007] The voltage conversion module is used to convert the varying voltage into a wake-up voltage and output it to the micro-control module to wake up the micro-control module to send a sentry mode trigger signal to the vehicle bus.

[0008] Further, the relative displacement sensing component includes a wheel, a reducer and a suspension motor. The output shaft of the reducer is connected to the axle of the wheel, the input shaft of the reducer is connected to the output shaft of the suspension motor, and the output voltage end of the suspension motor serves as the voltage output end of the relative displacement sensing component.

[0009] Further, the voltage conversion module includes an AC-DC conversion unit and a DC-DC conversion unit. The first end of the AC-DC conversion unit is connected to the voltage output end of the relative displacement sensing component. The second end of the AC-DC conversion unit is connected to the first end of the DC-DC conversion unit. The second end of the DC-DC conversion unit is connected to the power supply end of the micro control module.

[0010] Further, the suspension motor includes a three-phase AC suspension motor. The AC-DC conversion unit includes a three-phase bridge converter. The three-phase coils of the three-phase AC suspension motor are respectively connected to the three-phase bridge arms of the three-phase bridge converter.

[0011] Further, the sentry mode control circuit further includes a power management module. The power management module includes a first end and a second end. The second end of the DC-DC conversion unit is connected to the first end of the power management module. The second end of the power management module is connected to the power supply end of the micro control module.

[0012] Wherein, after receiving the target voltage converted by the DC-DC conversion unit, the power management module outputs a wake-up voltage to the micro control module.

[0013] Further, the power management module further includes a third end. The third end of the power management unit is used to be connected to one end of a first switch. The other end of the first switch is connected to the vehicle key ignition signal line. Wherein:

[0014] When receiving the target voltage and when the vehicle key ignition signal is lost, the power management module is used to provide an ignition voltage for the vehicle key ignition signal line.

[0015] Further, the power management module further includes a fourth end. The fourth end of the power management unit is used to be connected to the power supply voltage line of the vehicle battery. Wherein:

[0016] When receiving the target voltage and when the vehicle key ignition signal is lost, the power management module is used to provide a power supply voltage through the power supply voltage line of the vehicle battery.

[0017] When receiving the target voltage and when the vehicle key ignition signal is not lost, the power management module is used to provide a power supply voltage through the power supply voltage line of the vehicle battery.

[0018] A controller is provided, including the sentry mode control circuit as described in any one of the above.

[0019] A sentry mode control system is provided. The system includes a sentry mode control circuit, a sentry controller and a relative displacement sensing component.

[0020] The sentinel mode control circuit includes a bus transceiver module, a micro-control module, and a voltage conversion module. The power supply terminal of the micro-control module is connected to the power supply output terminal of the voltage conversion module. The power supply input terminal of the voltage conversion module is connected to the voltage output terminal of the relative displacement sensing component. The relative displacement sensing component is configured to output a varying voltage according to the relative displacement change between the vehicle body and the wheel; the signal input terminal of the bus transceiver module is connected to the signal output terminal of the micro-control module, and the signal output terminal of the bus transceiver module is connected to the sentinel controller;

[0021] The voltage conversion module is configured to convert the varying voltage into a wake-up voltage and output it to the micro-control module to wake up the micro-control module to send a sentinel mode trigger signal to the sentinel controller.

[0022] Further, the relative displacement sensing component includes a wheel, a reducer, and a suspension motor. The output shaft of the reducer is connected to the wheel axle of the wheel, the input shaft of the reducer is connected to the output shaft of the suspension motor, and the output voltage terminal of the suspension motor serves as the voltage output terminal of the relative displacement sensing component.

[0023] Further, the voltage conversion module includes an AC-DC conversion unit and a DC-DC conversion unit. The first end of the AC-DC conversion unit is connected to the voltage output terminal of the relative displacement sensing component, the second end of the AC-DC conversion unit is connected to the first end of the DC-DC conversion unit, and the second end of the DC-DC conversion unit is connected to the power supply terminal of the micro-control module.

[0024] Further, the suspension motor includes a three-phase AC suspension motor, the AC-DC conversion unit includes a three-phase bridge converter, and the three-phase coils of the three-phase AC suspension motor are respectively connected to the three-phase bridge arms of the three-phase bridge converter.

[0025] Further, the sentinel mode control circuit further includes a power management module. The power management module includes a first end and a second end. The second end of the DC-DC conversion unit is connected to the first end of the power management module, and the second end of the power management module is connected to the power supply terminal of the micro-control module;

[0026] Wherein, after receiving the target voltage converted by the DC-DC conversion unit, the power management module outputs a wake-up voltage to the micro-control module.

[0027] Further, the power management module further includes a third end. The third end of the power management unit is used to be connected to one end of a first switch, and the other end of the first switch is connected to the vehicle key ignition signal line, wherein:

[0028] When the target voltage is received and the vehicle key ignition signal is lost, the power management module is used to provide an ignition voltage to the vehicle key ignition signal line.

[0029] Further, the power management module further includes a fourth terminal, and the fourth terminal of the power management unit is used to be connected to the power supply voltage line of the vehicle battery, where:

[0030] When the target voltage is received and the vehicle key ignition signal is lost, the power management module is used to provide a power supply voltage through the power supply voltage line of the vehicle battery;

[0031] When the target voltage is received and the vehicle key ignition signal is not lost, the power management module is used to provide a power supply voltage through the power supply voltage line of the vehicle battery.

[0032] A vehicle is provided, including the sentry mode control system according to any one of claims 9-15.

[0033] A sentry mode control method is provided, and the method includes:

[0034] After the micro control module is awakened by the wake-up voltage, it sends a sentry mode trigger signal to the sentry controller, so that the sentry controller responds to the sentry mode trigger signal and controls the vehicle to start the sentry mode.

[0035] Wherein, the wake-up voltage is output by the voltage conversion module to the micro control module after converting the variable voltage, and the variable voltage is obtained by the relative displacement sensing component according to the relative displacement change between the vehicle body and the wheels

[0036] In one of the above provided solutions, the relative displacement sensing component is used to output a variable voltage according to the relative displacement change between the vehicle body and the wheels, and output it to the voltage conversion module. The voltage conversion module converts the variable voltage into a wake-up voltage and outputs it to the micro control module to wake up the micro control module to send a sentry mode trigger signal to the vehicle bus. That is to say, with this circuit, the start of the sentry mode can be realized by using the relative displacement change between the vehicle body and the wheels. There is no need to continuously supply power to the sensor like the traditional solution, which can solve the problem of continuous power consumption and energy consumption of the traditional sentry mode control, and also improve the cruising range. Description of the Drawings

[0037] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for the description of the embodiments of the present application will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present application. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0038] Figure 1 It is a schematic connection diagram of a sentry mode control circuit and a relative displacement sensing component in an embodiment of the present application;

[0039] Figure 2 It is a schematic system structure diagram of a vehicle in an embodiment of the present application;

[0040] Figure 3 It is a schematic local system structure diagram of a vehicle in an embodiment of the present application;

[0041] Figure 4 It is a schematic structure diagram of the relative displacement change between the vehicle body and the wheels in the present application;

[0042] Figure 5 It is a schematic diagram of the sensing process of the relative displacement sensing component in the present application;

[0043] Figure 6 It is another schematic connection diagram of a sentry mode control circuit and a relative displacement sensing component in an embodiment of the present application;

[0044] Figure 7 It is yet another schematic connection diagram of a sentry mode control circuit and a relative displacement sensing component in an embodiment of the present application;

[0045] Figure 8 It is a schematic connection diagram of a sentry mode control circuit and a vehicle system in an embodiment of the present application;

[0046] Figure 9 It is another schematic system structure diagram of a vehicle in an embodiment of the present application;

[0047] Figure 10 It is another schematic local system structure diagram of a vehicle in an embodiment of the present application. Detailed implementation manners

[0048] Next, the technical solutions in the embodiments of the present application will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present application.

[0049] The embodiments of the present application mainly provide a sentry mode control circuit, a controller, a sentry mode control system, a vehicle, and a sentry mode control method. In the embodiments of the present application, mainly through a relative displacement sensing component, using the relative displacement change between the vehicle body and the wheels to generate electrical energy, and then using the electrical energy generated in this part to wake up the sentry controller in the vehicle, thereby starting the sentry mode. Since there is no need to continuously supply power to the sensor as in the traditional solution, it can solve the problems of continuous power consumption and energy consumption in the traditional sentry mode control solution, save natural resources, reduce carbon emissions, and also improve the driving range. The following describes each embodiment provided by the present application in detail through various embodiments.

[0050] First, a detailed description of the sentry mode control circuit provided by the embodiments of the present application will be given.

[0051] In one embodiment, as Figure 1 shown, a sentry mode control circuit is provided, including a bus transceiver module, a micro-control module, and a voltage conversion module;

[0052] The power supply terminal of the micro-control module is connected to the power supply output terminal of the voltage conversion module. The power supply input terminal of the voltage conversion module is used to be connected to the voltage output terminal of the relative displacement sensing component. The relative displacement sensing component is used to output a varying voltage according to the relative displacement change between the vehicle body and the wheels. The signal input terminal of the bus transceiver module is connected to the signal output terminal of the micro-control module. The signal output terminal of the bus transceiver module is used to be connected to the vehicle bus. Exemplarily, the vehicle bus can be a CAN bus, including CAN L and CAN H lines.

[0053] The voltage conversion module is used to convert the varying voltage into a wake-up voltage and output it to the micro-control module to wake up the micro-control module to send a sentry mode trigger signal to the vehicle bus.

[0054] When the vehicle body is stationary relative to the wheels and there is no movement between the vehicle body and the wheels, a balanced state is formed between the vehicle body and the wheels at this time. When the vehicle is subjected to an external force, for example, the vehicle body is impacted, collided / violently disassembled or unlocked, etc., the above balanced state will be broken, causing a displacement change between the vehicle body and the wheels. This displacement change will be sensed by the relative displacement sensing component and generate a back electromotive force, that is, the relative displacement sensing component will output a varying voltage. When the relative motion relationship between the vehicle body and the wheels is no longer maintained, the relative displacement sensing component does not generate a back electromotive force, and the micro-control module loses the wake-up power supply, and thus enters the sleep state again according to the corresponding strategy, and the monitoring process ends.

[0055] It can be seen that in this embodiment, a sentinel mode control circuit is provided. This circuit uses a relative displacement sensing component to sense the relative displacement change between the vehicle body and the wheels, so as to output a varying voltage to the voltage conversion module. The voltage conversion module converts the varying voltage into a wake-up voltage and outputs it to the micro control module to wake up the micro control module to send a sentinel mode trigger signal to the vehicle bus. That is to say, by using this sentinel mode control circuit, the start of the sentinel mode can be realized by using the relative displacement change between the vehicle body and the wheels. There is no need to continuously supply power to the sensor like the traditional solution, which can solve the problems of continuous power consumption and energy consumption in the traditional sentinel mode control solution, and also improve the cruising range.

[0056] Among them, exemplarily, it can be the vehicle controller or other controllers on the vehicle bus, such as the camera controller, etc., that respond to the sentinel mode trigger signal on the vehicle bus to start the sentinel mode of the vehicle, and the specific implementation is not limited.

[0057] Exemplarily, control nodes with corresponding sentinel mode strategies on the vehicle, such as the vehicle controller, etc., are awakened and thus enter the normal control state to start the sentinel mode. After the sentinel mode is started, the sentinel mode strategy is executed. The sentinel mode strategy includes but is not limited to turning on sensors such as cameras, recording devices, and infrared rays for detection, as well as recording videos and sounds, and sending the recorded information and alarm status to the vehicle owner or vehicle management agency through the cellular network and other processing strategies, and the specific implementation is not limited.

[0058] It should be noted that the relative displacement sensing component is a component arranged on the vehicle and used to sense the relative displacement change between the vehicle body and the wheels. Specifically, there can be various implementation forms of the component, and the embodiments of the present application do not make limitations. Here, taking one implementation form derived from the electromagnetic suspension system as an example, by using the rotation speed input of the vehicle body (equivalent to the motor load) to the suspension motor, the suspension motor becomes a generator to generate a varying voltage, thereby waking up the sentinel controller. This embodiment will be described in detail based on this.

[0059] Please refer to Figure 2 as shown Figure 2 is a schematic diagram of a system structure of a vehicle including a suspension system. The vehicle includes four groups of motor systems. The four motors are respectively distributed on the four wheels through reducers and swing rods, and these four motors are respectively connected to the voltage conversion module in the sentinel mode control circuit. Since the working principle of each wheel is the same, the structure on the left front wheel is taken out separately for illustrative purposes, as Figure 3As shown, the relative displacement sensing component includes a wheel, a speed reducer, and a suspension motor. The output shaft of the speed reducer is connected to the axle of the wheel, and the input shaft of the speed reducer is connected to the output shaft of the suspension motor. The output voltage terminal of the suspension motor serves as the voltage output terminal of the relative displacement sensing component.

[0060] As Figure 4 and Figure 5 shown, Figure 4 is Figure 2 the view from direction A of the left upper group of wheels in [the figure]. This view from direction A shows a schematic diagram of the displacement change of the shock absorber when there is a displacement change between the vehicle body and the wheel. Among them, when the vehicle body is stationary relative to the wheel, at this time, there is no mechanical movement of the wheel, swing rod, speed reducer, and motor. The elastic forces of the springs in the vehicle body and the wheel form a balanced state, that is, in the equilibrium position. When the vehicle is subjected to external forces, for example, when the vehicle body is impacted, collided with / violently disassembled or unlocked, etc., the above-mentioned balanced state will be broken, causing a displacement change between the vehicle body and the wheel. For example, relative to the equilibrium position, it will displace to the up-jump position s1 or the down-jump position s2. The position of the speed reducer after the displacement change is indicated by the dotted circle. As Figure 5 shown, the changed displacement will be reversely transmitted to the output shaft of the speed reducer through the swing rod, becoming a rotational movement, then increased in speed through the high-speed ratio component, and then transmitted to the motor output shaft on the suspension motor assembly through the input shaft of the speed reducer, thereby driving the motor rotor to rotate. This process magnifies the relatively small displacement changes s1 / s2 into a relatively fast rotational speed of the motor rotor. Finally, when the motor rotor rotates at a certain rotational speed, it will enter the generator working mode, generating a back electromotive force, that is, the output changed voltage.

[0061] It should be noted that in the embodiments of the present application, there are four motor assemblies in the whole vehicle. The embodiments of the present application are described based on the structure of the left front motor. The structural type of the motor is not limited. In addition, the suspension motor adopted in this solution can be a permanent magnet synchronous motor or other types of motors, which is not specifically limited. The speed reducer is used in combination with the motor assembly, and there are 4 in the whole vehicle. The type of the speed reducer is also not limited. It can be a meshing gear, a planetary gear train, or a cycloidal gear train. The characteristic is that a large speed ratio is required, which is not specifically limited; the swing rod plays the role of a connecting rod and forms a link mechanism with the structural components of the vehicle suspension system, mainly converting the rotational movement output by the speed reducer into a reciprocating swing; in addition, the wheel, speed reducer, and motor are general terms simplified in the embodiments of the present application. For example, the wheel includes, but is not limited to, components such as tires, rims, hub bearings, steering knuckles, spring shock absorber assemblies, and upper and lower suspension swing arms, etc., which will not be elaborated one by one.

[0062] In this embodiment, a specific implementation form of the relative displacement sensing component is provided, which ingeniously utilizes the components of the vehicle's own system as the above-mentioned relative displacement sensing component, improving the system integration of the vehicle system and making full use of the vehicle system resources. In this case, there is no need to arrange additional sensing components in the vehicle, and the overall system is simpler and has a lower cost. Moreover, based on the characteristics of the above-mentioned suspension system, the displacement change can be accurately sensed, providing a conditional basis for accurately triggering the sentinel mode.

[0063] It should be noted that the above-mentioned relative displacement sensing component is only an exemplary embodiment here. In other embodiments, there can be various implementation methods. For example, the swing rod can also be replaced with a coupling or other forms, and there can be various types of implementation forms for the reducer, all of which can be realized. In addition, instead of using the components of the suspension system itself, components can be separately set to sense the changes between the vehicle body and the wheels. For example, a reducer and / or other motors can be separately set. Specifically, the embodiments of this application do not make any limitations.

[0064] In one embodiment, the voltage conversion module includes an AC-DC conversion unit and a DC-DC conversion unit. The first end of the AC-DC conversion unit is connected to the voltage output end of the relative displacement sensing component, the second end of the AC-DC conversion unit is connected to the first end of the DC-DC conversion unit, and the second end of the DC-DC conversion unit is connected to the power supply end of the micro control module.

[0065] In this embodiment, an implementation form of the voltage conversion module is provided. The voltage conversion module includes an AC-DC conversion unit and a DC-DC conversion unit. Among them, the AC-DC conversion unit is used to convert the changing voltage output by the relative displacement sensing component into a DC voltage, and the DC-DC conversion unit is connected to the AC-DC conversion unit and is used to convert the DC voltage output by the AC-DC conversion unit into the required target DC voltage. It should be understood that since the variable voltage current output by the suspension motor is in an AC form, it is necessary to use the AC-DC conversion unit to convert it into a DC voltage, and then use the DC-DC conversion unit to convert it into a DC form and the required target voltage. Exemplarily, the DC-DC conversion unit can adopt a flyback switching power supply circuit or other forms of topological circuits, and no specific limitations are made.

[0066] In one embodiment, as Figure 6 and Figure 7As shown, the suspension motor includes a three-phase AC suspension motor, and the AC-DC conversion unit includes a three-phase bridge converter. The three-phase coils of the three-phase AC suspension motor are respectively connected to the suspension motor as a three-phase AC suspension motor. In this embodiment, the three-phase coils of the three-phase AC suspension motor are respectively connected to the three-phase bridge arms of the three-phase bridge converter, so that the three-phase alternating current due to displacement changes in the three-phase AC suspension motor can be converted into a DC voltage through the three-phase bridge arms of the three-phase bridge converter. Depending on the motor form of the suspension motor, the AC-DC conversion unit can use a corresponding bridge circuit for conversion, and the specific embodiments of this application are not limited.

[0067] As Figure 8 shown, as an example, the three-phase bridge converter may include a first switch unit VT1, a second switch unit VT2, a third switch unit VT3, a fourth switch unit VT4, a fifth switch unit VT5, and a sixth switch unit VT6. Exemplarily, the above first switch unit to sixth switch unit can use MOS transistors, etc., and each transistor includes a corresponding diode, namely VD1-VD6.

[0068] In one embodiment, further, for the effective management of the sentinel mode and other utilization of the electrical energy output by the relative displacement sensing component, the sentinel mode control circuit may further include a power management module. The power management module includes a first end and a second end. The second end of the DC-DC conversion unit is connected to the first end of the power management module, and the second end of the power management module is connected to the power supply end of the micro control module; wherein, after receiving the target voltage converted by the DC-DC conversion unit, the power management module outputs a wake-up voltage to the micro control module.

[0069] As Figure 7 shown, since the power management module is connected to the DC-DC conversion unit through the second end, the voltage output by the DC-DC conversion unit will be output to the power management module. For example, 15V or other voltage values are output to the power management module to wake up the power management module. After the power management module is woken up, it outputs a wake-up voltage to the micro control module, prompting the micro control module to send a sentinel mode trigger signal to the vehicle bus.

[0070] In this embodiment, by setting the power management module as the wake-up source and outputting a wake-up voltage to the micro control module, prompting the micro control module to send a sentinel mode trigger signal to the vehicle bus, it is convenient to reconfigure the power management module, including the size of the wake-up voltage and other settings, which is more practical.

[0071] In one embodiment, as Figure 8As shown, the power management module further includes a third terminal. The third terminal of the power management unit is used to connect to one end of the first switch SW1, and the other end of the first switch SW1 is connected to the vehicle key ignition signal line KL15, where: when receiving the target voltage and when the vehicle key ignition signal is lost, the power management module is used to provide an ignition voltage for the vehicle key ignition signal line KL15.

[0072] In this embodiment, due to the provision of the power management module, and its third terminal is used to connect to one end of the first switch SW1, and the other end of the first switch SW1 is connected to the vehicle key ignition signal line KL15. Therefore, when receiving the target voltage and when the vehicle key ignition signal is lost, the power management module can be used to provide an ignition voltage for the vehicle key ignition signal line KL15. On the one hand, in this embodiment, the electrical energy output by sensing the displacement can be used as the vehicle key ignition voltage, making full use of the converted electrical energy; in addition, the voltage output by the power management module can also be used as other supply voltages, which is beneficial to ensuring the effective operation of the vehicle key ignition line.

[0073] In one embodiment, the power management module further includes a fourth terminal. The fourth terminal of the power management unit is used to connect to the supply voltage line K30 of the vehicle battery, where: when receiving the target voltage and when the vehicle key ignition signal is lost, the power management module is used to provide a supply voltage through the supply voltage line K30 of the vehicle battery; when receiving the target voltage and when the vehicle key ignition signal is not lost, the power management module is used to provide a supply voltage through the supply voltage line K30 of the vehicle battery.

[0074] In this embodiment, due to the provision of the power management module, and its fourth terminal is connected to the supply voltage line K30 of the vehicle battery. Therefore, when receiving the target voltage and when the vehicle key ignition signal is lost or not lost, the power management module can be used to provide an ignition voltage for the vehicle key ignition signal line K15. On the one hand, in this embodiment, the electrical energy output by sensing the displacement can be used as the supply voltage of the vehicle battery, making full use of the converted electrical energy again; moreover, the voltage output by the power management module can also be used as a redundant voltage of the supply voltage of the vehicle battery, which can effectively ensure the normal operation of other vehicle systems.

[0075] In addition, it is also worth noting that one end of the above AC-DC conversion circuit in the embodiment of the present application is also connected to the ground terminal, and the other end is connected to the positive pole of the vehicle battery pack through the second switch SW2. That is to say, the above circuit is also connected to the high-voltage DC bus of the vehicle power supply and the KL15&KL30 low-voltage power supply lines.

[0076] In one embodiment, a controller is provided. The controller can be used as a motor controller and includes a sentinel mode control circuit as described in any of the foregoing embodiments. For more details about the sentinel mode control circuit, reference can be made to the descriptions of the foregoing embodiments. It should be noted that as Figure 9 and Figure 10 shown, through the motor controller provided in this embodiment and the connection relationships with the vehicle motor and the vehicle bus, the wake-up and control of the sentinel mode can be conveniently achieved. Among them, the motor controller is the control unit of the vehicle suspension motor, and there can be one or more. In the embodiment of the present application, a scheme of using one controller to control two motors is adopted. For the convenience of description, only a part of the circuit or block diagram of one of the motor controls is taken for illustration, and details are not described one by one.

[0077] In addition, in the embodiment of the present application, the sentinel mode control circuit is integrated in the motor controller, which can realize the sentinel mode wake-up function of the embodiment of the present application, and also makes the functions of the motor controller more comprehensive and perfect, and the application scenarios are wider.

[0078] It is also worth noting that the motor controller adopting the sentinel mode control circuit provided in the embodiment of the present application is composed of two parts: hardware and software; since there is only input and output of electrical energy and signals with the outside world and no mechanical function output, the layout position of the motor controller is not restricted. In addition to being connected to the vehicle bus with the sentinel controller, it is generally also connected to one or two motors it controls, such as suspension motors. Each suspension motor has connections of three-phase current lines (U\V\W) and feedback signal connections of sensors on the motor; in addition, it can also be connected to the high-voltage DC bus of the vehicle power supply and the KL15&KL30 low-voltage power supply lines. For the specific connection relationships, reference can be made to the content of the foregoing sentinel mode control circuit, and specific limitations and repeated descriptions are not made.

[0079] The foregoing embodiments have described the sentinel mode control circuit and the controller provided in the embodiment of the present application. Next, the sentinel mode control system provided by the present application will be described in detail through another embodiment.

[0080] In one embodiment, reference can be continued to Figures 1 - 10 for understanding. In this embodiment, a sentinel mode control system is provided. The system includes a sentinel mode control circuit, a sentinel controller, and a relative displacement sensing component;

[0081] The sentinel mode control circuit includes a bus transceiver module, a micro-control module, and a voltage conversion module. The power supply terminal of the micro-control module is connected to the power supply output terminal of the voltage conversion module. The power supply input terminal of the voltage conversion module is connected to the voltage output terminal of the relative displacement sensing component. The relative displacement sensing component is configured to output a varying voltage according to the relative displacement change between the vehicle body and the wheel. The signal input terminal of the bus transceiver module is connected to the signal output terminal of the micro-control module, and the signal output terminal of the bus transceiver module is connected to the sentinel controller.

[0082] The voltage conversion module is configured to convert the varying voltage into a wake-up voltage and output it to the micro-control module to wake up the micro-control module to send a sentinel mode trigger signal to the sentinel controller.

[0083] It can be seen that in this embodiment, a sentinel mode control system is provided. This system uses a relative displacement sensing component to sense the relative displacement change between the vehicle body and the wheel and output a varying voltage, and outputs it to the voltage conversion module. The voltage conversion module converts the varying voltage into a wake-up voltage and outputs it to the micro-control module to wake up the micro-control module to send a sentinel mode trigger signal to the vehicle bus. That is to say, using this system, the start of the sentinel mode can be realized by using the relative displacement change between the vehicle body and the wheel. There is no need to continuously supply power to the sensor as in the traditional solution, which can solve the problem that the traditional sentinel mode control solution continuously consumes power and energy, thereby reducing continuous power consumption and improving the driving range.

[0084] In one embodiment, the relative displacement sensing component includes a wheel, a reducer, and a suspension motor. The output shaft of the reducer is connected to the axle of the wheel, and the input shaft of the reducer is connected to the output shaft of the suspension motor. The output voltage terminal of the suspension motor serves as the voltage output terminal of the relative displacement sensing component.

[0085] It should be noted that the relative displacement sensing component is a component arranged on the vehicle and used to sense the relative displacement change between the vehicle body and the wheel. Specifically, there can be various implementation forms of the component, which are not limited in the embodiments of this application. Here, taking one implementation form derived from the electromagnetic suspension system as an example, the vehicle body (equivalent to the motor load) inputs a rotational speed to the motor, causing the motor to become a generator to generate a varying voltage, thereby waking up the sentinel controller. This embodiment will be described in detail based on this.

[0086] Please refer to Figure 2 as shown Figure 2It is a schematic structural diagram of a system for a vehicle including a suspension system. There are four sets of motor systems on the vehicle, and four motors are respectively distributed on four wheels through speed reducers and swing rods. These four motors are respectively connected to the voltage conversion module in the sentry mode control circuit. Since the working principle on each wheel is the same, the structure on the left front wheel is taken out separately for illustration, as Figure 3 shown, the relative displacement sensing component includes a wheel, a speed reducer, and a suspension motor. The output shaft of the speed reducer is connected to the axle of the wheel, and the input shaft of the speed reducer is connected to the output shaft of the suspension motor. The output voltage terminal of the suspension motor serves as the voltage output terminal of the relative displacement sensing component.

[0087] As Figure 4 and Figure 5 shown, Figure 4 is Figure 2 In the A - view of the left - upper - group of wheels in, this A - view reflects the schematic diagram of the displacement change between the vehicle body and the wheels. Among them, when the vehicle body is stationary relative to the wheels, at this time, there is no mechanical movement in the wheel, swing rod, speed reducer, and motor assembly. At this time, the elastic force of the spring in the vehicle body main body and the wheel assembly forms a balanced state, that is, in the equilibrium position; and when the vehicle is subjected to external forces, for example, when the vehicle body is impacted, collided / violently disassembled or unlocked, etc., the above - mentioned balanced state will be broken, causing a displacement change between the vehicle body and the wheels. For example, relative to the equilibrium position, there is a displacement of the up - jump position s1 or the down - jump position s2. The dotted - circle position represents the position of the speed reducer after the displacement change. This changed displacement will be reversely transmitted to the output shaft of the speed reducer through the swing rod, becoming a rotational movement, then increasing the speed through a high - speed - ratio component, and then being transmitted to the motor output shaft on the suspension motor assembly through the input shaft of the speed reducer, thereby driving the motor rotor to rotate. This process amplifies the relatively small displacement change s1 / s2 into a relatively fast rotational speed of the motor rotor. Finally, when the motor rotor rotates at a certain rotational speed, it will enter the generator working mode, generating a back - electromotive force, that is, an output changing voltage.

[0088] In this embodiment, a specific implementation form of the relative displacement sensing component is provided, which cleverly uses the components of the vehicle's own system as the above - mentioned relative displacement sensing component, improving the systematicness of the vehicle system, and also making full use of the vehicle system resources. In this case, there is no need to arrange additional sensing components in the vehicle, and the overall system is simpler; moreover, based on the characteristics of the above - mentioned suspension system, it can accurately sense the above - mentioned displacement change, which also provides a conditional basis for accurately triggering the sentry mode.

[0089] It should be noted that the above relative displacement sensing component is only an exemplary embodiment here. In other embodiments, there can be various implementation manners. For example, the swing rod can also be replaced with a coupling shaft or other forms, and there can also be various types of implementation forms for the speed reducer, all of which can be realized. In addition, instead of using the components of the suspension system itself, components can be separately provided to sense the changes between the vehicle body and the wheels. For example, a speed reducer and / or a motor can be separately and additionally provided. Specifically, the embodiments of the present application do not make any limitations in this regard.

[0090] In one embodiment, the voltage conversion module includes an AC-DC conversion unit and a DC-DC conversion unit. The first end of the AC-DC conversion unit is connected to the voltage output end of the relative displacement sensing component, the second end of the AC-DC conversion unit is connected to the first end of the DC-DC conversion unit, and the second end of the DC-DC conversion unit is connected to the power supply end of the micro control module.

[0091] In this embodiment, an implementation form of the voltage conversion module is provided, including an AC-DC conversion unit and a DC-DC conversion unit. Among them, the AC-DC conversion unit is used to convert the changing voltage output by the relative displacement sensing component into a DC voltage, and the DC-DC conversion unit is connected to the AC-DC conversion unit and is used to convert the DC voltage output by the AC-DC conversion unit into the required target DC voltage. It should be understood that since the variable voltage current output by the suspension motor is in the form of alternating current, it is necessary to use the AC-DC conversion unit to convert it into a DC voltage, and then use the DC-DC conversion unit to convert it into the required target DC voltage. Exemplarily, the DC-DC conversion unit can adopt a flyback switching power supply circuit or other forms of topological circuits, and specific limitations are not made in the embodiments of the present application.

[0092] In one embodiment, the suspension motor includes a three-phase AC suspension motor, and the AC-DC conversion unit includes a three-phase bridge converter. The three-phase coils of the three-phase AC suspension motor are respectively connected to the three-phase bridge arms of the three-phase bridge converter.

[0093] In this embodiment, the three-phase coils of the three-phase AC suspension motor are respectively connected. The suspension motor is a three-phase AC suspension motor. In this embodiment, the three-phase coils of the three-phase AC suspension motor are respectively connected to the three-phase bridge arms of the three-phase bridge converter, so that the three-phase alternating current of the three-phase AC suspension motor due to displacement changes can be converted into a DC voltage through the three-phase bridge arms of the three-phase bridge converter. Depending on the motor form of the suspension motor, the AC-DC conversion unit can adopt a corresponding bridge circuit for conversion, and specific limitations are not made in the embodiments of the present application.

[0094] Such as Figure 8As shown, as an example, the three-phase bridge converter may include a first switch unit VT1, a second switch unit VT2, a third switch unit VT3, a fourth switch unit VT4, a fifth switch unit VT5, and a sixth switch unit VT6. Exemplarily, the first to sixth switch units may be MOS transistors, etc., and each transistor includes a corresponding diode, namely VD1-VD6.

[0095] In one embodiment, the sentinel mode control circuit further includes a power management module. The power management module includes a first end and a second end. The second end of the DC-DC conversion unit is connected to the first end of the power management module, and the second end of the power management module is connected to the power supply terminal of the micro control module; wherein, after receiving the target voltage converted by the DC-DC conversion unit, the power management module outputs a wake-up voltage to the micro control module.

[0096] In this embodiment, by setting the power management module as the wake-up source and outputting a wake-up voltage to the micro control module, it is possible to prompt the micro control module to send a sentinel mode trigger signal to the vehicle bus, which facilitates reconfiguration of the power management module, including the magnitude of the wake-up voltage and other settings, and is more practical.

[0097] In one embodiment, the power management module further includes a third end. The third end of the power management unit is used to connect to one end of a first switch SW1, and the other end of the first switch is connected to the vehicle key ignition signal line KL15, where: when receiving the target voltage and when the vehicle key ignition signal is lost, the power management module is used to provide an ignition voltage to the vehicle key ignition signal line KL15.

[0098] In one embodiment, the power management module further includes a fourth end. The fourth end of the power management unit is used to connect to the power supply voltage line KL30 of the vehicle battery, where: when receiving the target voltage and when the vehicle key ignition signal is lost, the power management module is used to provide a power supply voltage through the power supply voltage line KL30 of the vehicle battery; when receiving the target voltage and when the vehicle key ignition signal is not lost, the power management module is used to provide a power supply voltage through the power supply voltage line KL30 of the vehicle battery.

[0099] In this embodiment, since a power management module is provided and its third terminal is used to connect to one end of the first switch, and the other end of the first switch SW1 is connected to the vehicle key ignition signal line KL15, therefore, when the power management module receives the target voltage and the vehicle key ignition signal is lost, the power management module can be used to provide an ignition voltage for the vehicle key ignition signal line KL15. On the one hand, in this embodiment, the electric energy output by sensing displacement can be used as the vehicle key ignition voltage, making full use of the converted electric energy; in addition, the voltage output by the power management module can also be used as other supply voltages, which is beneficial to ensuring that the vehicle key ignition line KL15 can work effectively.

[0100] Moreover, since a power management module is provided and its fourth terminal is connected to the power supply voltage line K30 of the vehicle battery, therefore, when the power management module receives the target voltage and whether the vehicle key ignition signal is lost or not, the power management module can be used to provide an ignition voltage for the vehicle key ignition signal line K15. On the one hand, in this embodiment, the electric energy output by sensing displacement can be used as the power supply voltage of the vehicle battery, making full use of the converted electric energy again; moreover, the voltage output by the power management module can also be used as a redundant voltage of the power supply voltage of the vehicle battery, which can effectively guarantee the normal operation of other vehicle systems.

[0101] In one embodiment, a vehicle is provided, including a sentry mode control circuit, a sentry controller, and a relative displacement sensing component; the sentry mode control circuit includes a bus transceiver module, a micro-control module, and a voltage conversion module. The power supply terminal of the micro-control module is connected to the power supply output terminal of the voltage conversion module. The power supply input terminal of the voltage conversion module is connected to the voltage output terminal of the relative displacement sensing component. The relative displacement sensing component is used to output a varying voltage according to the relative displacement change between the vehicle body and the wheel. The signal input terminal of the bus transceiver module is connected to the signal output terminal of the micro-control module. The signal output terminal of the bus transceiver module is connected to the sentry controller through a vehicle bus; the voltage conversion module is used to convert the varying voltage into a wake-up voltage and output it to the micro-control module to wake up the micro-control module to send a sentry mode trigger signal to the vehicle bus; after receiving the sentry mode trigger signal from the vehicle bus, the sentry controller triggers the sentry mode.

[0102] In one embodiment, a vehicle is also provided, including any one of the motor controllers, sentry controllers, and relative displacement sensing components mentioned in the foregoing embodiments.

[0103] In addition, in some embodiments, the vehicle further includes more solution contents and technical effects of the sentinel mode control system or the motor controller. For details, reference may be made to the description of the sentinel mode control system or the motor controller above, and specific descriptions are not repeated here.

[0104] In one embodiment, a sentinel mode control method is also provided. The method includes:

[0105] After the micro control module is awakened by the wake-up voltage, it sends a sentinel mode trigger signal to the sentinel controller, so that the sentinel controller responds to the sentinel mode trigger signal and controls the vehicle to start the sentinel mode.

[0106] Wherein, the wake-up voltage is output to the micro control module by the voltage conversion module after converting the variable voltage, and the variable voltage is obtained by the relative displacement sensing component according to the relative displacement change between the vehicle body and the wheels.

[0107] In addition, based on the vehicle, control circuit or control system provided in the above embodiments, there may be corresponding control logics. For details, reference may be made to the description of the above embodiments, and no repeated description is given here.

[0108] Those of ordinary skill in the art can understand that to implement all or part of the processes in the above embodiment solutions, it can be completed by instructing relevant hardware through a computer program. The computer program can be stored in a non-volatile computer-readable storage medium. When the computer program is executed, it may include the processes of the above method embodiments. Among them, any reference to the memory, storage, and database used in the various embodiments provided in the present application may include non-volatile and / or volatile memories.

[0109] Those skilled in the art can clearly understand that for the convenience and brevity of description, only the above-mentioned functional modules and module divisions are used as examples for illustration. In actual applications, the above functions can be allocated to different functional modules and modules as needed, that is, the internal structure of the device can be divided into different functional modules or modules to complete all or part of the functions described above.

[0110] The above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements for some of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the various embodiments of the present application, and should all be included in the protection scope of the present application.

Claims

1. A sentinel mode control circuit, characterized in that, It includes a bus transceiver module, a micro-control module, and a voltage conversion module; The power supply end of the micro-control module is connected to the power supply output end of the voltage conversion module. The power supply input end of the voltage conversion module is used to be connected to the voltage output end of the relative displacement sensing component. The relative displacement sensing component is used to output a varying voltage according to the relative displacement change between the vehicle body and the wheel. The signal input end of the bus transceiver module is connected to the signal output end of the micro-control module. The signal output end of the bus transceiver module is used to be connected to the vehicle bus; The voltage conversion module is used to convert the varying voltage into a wake-up voltage and output it to the micro-control module to wake up the micro-control module to send a sentinel mode trigger signal to the vehicle bus.

2. The sentinel mode control circuit according to claim 1, wherein The relative displacement sensing component includes a wheel, a speed reducer, and a suspension motor. The output shaft of the speed reducer is connected to the axle of the wheel. The input shaft of the speed reducer is connected to the output shaft of the suspension motor. The output voltage end of the suspension motor serves as the voltage output end of the relative displacement sensing component.

3. The sentinel mode control circuit according to claim 2, wherein The voltage conversion module includes an AC-DC conversion unit and a DC-DC conversion unit. The first end of the AC-DC conversion unit is used to be connected to the voltage output end of the relative displacement sensing component. The second end of the AC-DC conversion unit is connected to the first end of the DC-DC conversion unit. The second end of the DC-DC conversion unit is connected to the power supply end of the micro-control module.

4. The sentinel mode control circuit according to claim 3, characterized in that The suspension motor includes a three-phase AC suspension motor. The AC-DC conversion unit includes a three-phase bridge converter. The three-phase coils of the three-phase AC suspension motor are respectively connected to the three-phase bridge arms of the three-phase bridge converter.

5. The sentinel mode control circuit according to claim 3, characterized in that The sentinel mode control circuit further includes a power management module. The power management module includes a first end and a second end. The second end of the DC-DC conversion unit is connected to the first end of the power management module. The second end of the power management module is connected to the power supply end of the micro-control module; Wherein, after receiving the target voltage converted by the DC-DC conversion unit, the power management module outputs a wake-up voltage to the micro-control module.

6. The sentinel mode control circuit according to claim 5, characterized in that, The power management module further includes a third end. The third end of the power management unit is used to be connected to one end of a first switch. The other end of the first switch is connected to the vehicle key ignition signal line. Wherein: When receiving the target voltage and when the vehicle key ignition signal is lost, the power management module is used to provide an ignition voltage to the vehicle key ignition signal line.

7. The sentinel mode control circuit according to claim 6, characterized in that, The power management module further includes a fourth end. The fourth end of the power management unit is used to be connected to the power supply voltage line of the vehicle battery. Wherein: When receiving the target voltage and when the vehicle key ignition signal is lost, the power management module is used to provide a power supply voltage through the power supply voltage line of the vehicle battery; When receiving the target voltage and when the vehicle key ignition signal is not lost, the power management module is used to provide a power supply voltage through the power supply voltage line of the vehicle battery.

8. A controller, characterized in that, It includes the sentinel mode control circuit according to any one of claims 1-7.

9. A sentinel mode control system, characterized in that, The system includes a sentry mode control circuit, a sentry controller, and a relative displacement sensing component; The sentry mode control circuit includes a bus transceiver module, a micro-control module, and a voltage conversion module. The power supply terminal of the micro-control module is connected to the power supply output terminal of the voltage conversion module. The power supply input terminal of the voltage conversion module is connected to the voltage output terminal of the relative displacement sensing component. The relative displacement sensing component is configured to output a varying voltage according to the relative displacement change between the vehicle body and the wheel. The signal input terminal of the bus transceiver module is connected to the signal output terminal of the micro-control module, and the signal output terminal of the bus transceiver module is connected to the sentry controller; The voltage conversion module is configured to convert the varying voltage into a wake-up voltage and output it to the micro-control module to wake up the micro-control module to send a sentry mode trigger signal to the sentry controller.

10. The sentinel mode control system according to claim 9, wherein The relative displacement sensing component includes a wheel, a speed reducer, and a suspension motor. The output shaft of the speed reducer is connected to the axle of the wheel, and the input shaft of the speed reducer is connected to the output shaft of the suspension motor. The output voltage terminal of the suspension motor serves as the voltage output terminal of the relative displacement sensing component.

11. The sentinel mode control system according to claim 10, characterized in that, The voltage conversion module includes an AC-DC conversion unit and a DC-DC conversion unit. The first end of the AC-DC conversion unit is connected to the voltage output terminal of the relative displacement sensing component. The second end of the AC-DC conversion unit is connected to the first end of the DC-DC conversion unit. The second end of the DC-DC conversion unit is connected to the power supply terminal of the micro-control module.

12. The sentinel mode control system according to claim 11, wherein, The suspension motor includes a three-phase AC suspension motor. The AC-DC conversion unit includes a three-phase bridge converter. The three-phase coils of the three-phase AC suspension motor are respectively connected to the three-phase bridge arms of the three-phase bridge converter.

13. The sentinel mode control system according to claim 12, wherein, The sentry mode control circuit further includes a power management module. The power management module includes a first end and a second end. The second end of the DC-DC conversion unit is connected to the first end of the power management module. The second end of the power management module is connected to the power supply terminal of the micro-control module; wherein, after receiving the target voltage converted by the DC-DC conversion unit, the power management module outputs a wake-up voltage to the micro-control module.

14. The sentinel mode control system according to claim 13, wherein, The power management module further includes a third end. The third end of the power management unit is configured to be connected to one end of a first switch. The other end of the first switch is connected to the vehicle key ignition signal line. Wherein: When receiving the target voltage and the vehicle key ignition signal is lost, the power management module is configured to provide an ignition voltage to the vehicle key ignition signal line.

15. The sentinel mode control system according to claim 14, characterized in that, The power management module further includes a fourth end. The fourth end of the power management unit is configured to be connected to the power supply voltage line of the vehicle battery. Wherein: When receiving the target voltage and the vehicle key ignition signal is lost, the power management module is configured to provide a power supply voltage through the power supply voltage line of the vehicle battery; When receiving the target voltage and the vehicle key ignition signal is not lost, the power management module is configured to provide a power supply voltage through the power supply voltage line of the vehicle battery.

16. A vehicle, characterized in that, Including the sentry mode control system according to any one of claims 9-15.

17. A sentinel mode control method, characterized in that, The method includes: After the micro control module is awakened by the wake-up voltage, it sends a sentry mode trigger signal to the sentry controller, so that the sentry controller responds to the sentry mode trigger signal and controls the vehicle to start the sentry mode; Wherein, the wake-up voltage is output to the micro control module by the voltage conversion module after converting the changing voltage, and the changing voltage is obtained by the relative displacement sensing component according to the relative displacement change between the vehicle body and the wheels.

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