CN112622791B - High-voltage control system and vehicle - Google Patents
High-voltage control system and vehicle Download PDFInfo
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- CN112622791B CN112622791B CN201910907222.4A CN201910907222A CN112622791B CN 112622791 B CN112622791 B CN 112622791B CN 201910907222 A CN201910907222 A CN 201910907222A CN 112622791 B CN112622791 B CN 112622791B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R16/00—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for
- B60R16/02—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements
- B60R16/03—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements for supply of electrical power to vehicle subsystems or for
Abstract
The present invention provides a high voltage control system comprising: the integrated controller comprises a signal input module, an integrated controller and an integrated driving module connected with the integrated controller; the integrated driving module is connected with at least one high-voltage device, and the integrated driving module is connected with a battery pack; when the signal input module receives a high-voltage circuit control signal, the integrated controller outputs a high-voltage circuit on/off signal to the integrated driving module, so that the integrated driving module switches on/off one or more circuits of the high-voltage equipment and the battery pack. The invention realizes that one low-voltage controller controls one or more high-voltage devices, and solves the problems of low integration level, poor control efficiency, redundant lines and high cost of the high-voltage control system on the conventional electric automobile.
Description
Technical Field
The invention relates to the technical field of control, in particular to a high-voltage control system and a vehicle.
Background
The electric automobile comprises a plurality of high-voltage electric devices, and the conventional high-voltage control system independently adopts one set of driving module for each high-voltage electric device, for example, an electric compressor adopts a compressor driving module, a PTC heater adopts a control output driving module, and a motor adopts a motor controller driving module. The driving modules of the high-voltage electric devices are independent from each other, so that the elements in the driving modules are wasted, the arrangement of the high-voltage electric devices is influenced, the low-voltage control circuit is redundant, and the system cost is high. When the electric automobile contains a large number of high-voltage electric appliances, the high-voltage control system needs to be provided with a plurality of controllers to control the driving module, and the high-voltage control system is low in integration level and poor in control efficiency from the perspective of the whole automobile.
In conclusion, the high-voltage control system on the existing electric automobile has the problems of low integration level, poor control efficiency, redundant circuit and high cost.
Disclosure of Invention
The invention provides a high-voltage control system and a vehicle, and aims to solve the problems of low integration level, poor control efficiency, circuit redundancy and high cost of the high-voltage control system on the conventional electric vehicle.
The present invention is achieved as such, and provides a high voltage control system comprising:
the integrated controller comprises a signal input module, an integrated controller and an integrated driving module connected with the integrated controller;
the integrated driving module is connected with at least one high-voltage device, and the integrated driving module is connected with a battery pack;
the signal input module is connected with the integrated controller, and when the signal input module receives a high-voltage circuit control signal, the integrated controller outputs a high-voltage circuit connection signal to the integrated drive module according to the high-voltage circuit control signal, so that the integrated drive module is connected with one or more high-voltage devices and a loop of the battery pack;
when the signal input module receives a high-voltage circuit control signal, the integrated controller outputs a high-voltage circuit turn-off signal to the integrated drive module according to the high-voltage circuit control signal, so that the integrated drive module disconnects one or more high-voltage devices from a loop of the battery pack.
The invention provides a vehicle comprising a high-voltage control system as described above.
The invention provides a high-voltage control system, which is characterized in that components of a driving module of each high-voltage device are separated, and are combined in a component sharing mode to obtain an integrated driving module, and an integrated controller is configured; when the signal input module receives a high-voltage circuit control signal, the integrated controller outputs a high-voltage circuit on/off signal to the integrated driving module according to the high-voltage circuit control signal, so that the integrated driving module switches on/off one or more high-voltage devices and a loop of the battery pack, and starts/closes one or more high-voltage devices, thereby realizing that each high-voltage device shares the controller and the driving module, controlling one or more high-voltage devices through a low-voltage controller, improving the integration level of a high-voltage control system, optimizing the arrangement space of the high-voltage control system, reducing the cost of the high-voltage control system, being beneficial to simplifying a heat dissipation system pipeline after the driving module is integrated, and further improving the control efficiency of the high-voltage control system.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the embodiments or the prior art descriptions will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without inventive exercise.
FIG. 1 is a schematic circuit diagram of a high voltage control system according to an embodiment of the present invention;
FIG. 2 is a schematic circuit diagram of a high voltage control system according to another embodiment of the present invention;
FIG. 3 is a schematic circuit diagram of a high voltage control system according to another embodiment of the present invention;
FIG. 4 is a schematic circuit diagram of a high voltage control system according to another embodiment of the present invention;
FIG. 5 is a circuit diagram of a shared switch circuit according to an embodiment of the present invention;
FIG. 6 is a circuit diagram of a shared switch circuit according to another embodiment of the present invention;
fig. 7 is a schematic structural diagram of a vehicle according to an embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and do not limit the invention.
Fig. 1 is a circuit diagram of a high voltage control system provided by the present invention. As shown in fig. 1, the high-voltage control system includes:
the system comprises a signal input module 1, an integrated controller 2 and an integrated driving module 3 connected with the integrated controller 2;
the integrated drive module 3 is connected to at least one high-voltage device 4, and the integrated drive module 3 is connected to a battery pack 5; wherein the high voltage device 4 and the battery pack 5 are external devices.
The signal input module 1 is connected with the integrated controller 2, and when the signal input module 1 receives a high-voltage circuit control signal, the integrated controller 2 outputs a high-voltage circuit connection signal to the integrated drive module 3 according to the high-voltage circuit control signal, so that the integrated drive module 3 is connected with one or more high-voltage devices 4 and a circuit of the battery pack 5;
when the signal input module 1 receives a high-voltage circuit control signal, the integrated controller 2 outputs a high-voltage circuit turn-off signal to the integrated driving module 3 according to the high-voltage circuit control signal, so that the integrated driving module 3 disconnects one or more high-voltage devices 4 from the circuit of the battery pack 5.
Wherein, the high-voltage device 4 is a high-voltage device on an electric vehicle, and includes but is not limited to at least one of a heater, a compressor, a motor and a charger. In the embodiment of the invention, the original air conditioner controller, the original motor controller and the like are integrated into an integrated controller 2 in a high-voltage control system, and a control signal is output through a singlechip; the integrated driving module 3 is obtained by separating components of the original driving modules of the high-voltage devices and combining the components in a component sharing mode, and the integrated controller 2 and the integrated driving module 3 are shared by the high-voltage devices, so that the modules and the components on the high-voltage control system are reduced, the integration level of the high-voltage control system is improved, the weight and the volume of the high-voltage control device are reduced, and the arrangement space of the high-voltage control system is optimized.
In the embodiment of the present invention, the signal input module 1 is configured to receive a high-voltage circuit control signal such as a system control signal or a sampling signal on an electric vehicle, and send the high-voltage circuit control signal to the integrated controller 2. The integrated controller 2 is configured to recognize the high-voltage circuit control signal, generate a high-voltage circuit on signal/high-voltage circuit off signal of the high-voltage device to be controlled according to the high-voltage circuit control signal, and send the high-voltage circuit on signal/high-voltage circuit off signal to the integrated driving module 3. The integrated driving module 3 is connected with the positive electrode and the negative electrode of the battery pack 5 and is used for switching on one or more high-voltage devices 4 and the battery pack 5 according to the high-voltage circuit switching-on signal, so that the high-voltage devices 4 form a high-voltage path with the battery pack 5 through the integrated driving module 3 and start the high-voltage devices 4; or, the integrated driving module 3 is configured to disconnect one or more high-voltage devices 4 and the battery pack 5 according to the high-voltage circuit shutdown signal, so that a high-voltage path formed by the high-voltage devices 4 and the battery pack 5 is disconnected, and the high-voltage devices 4 are turned off. Here, the signal input module 1 and the integrated controller 2 are respectively supplied with electric energy through a low-voltage power supply, and constitute a low-voltage side of the high-voltage control system. The battery pack 5 and one or more high voltage devices 4 form a high voltage loop through the integrated driving module 3, and the high voltage loop is the high voltage side of the high voltage control system. According to the high-voltage control system provided by the embodiment of the invention, the control signal of the low-voltage side and the electric energy of the high-voltage side are connected through the integrated drive module 3, so that one low-voltage controller controls one or more high-voltage devices, and each high-voltage device shares the integrated controller and the integrated drive module, thereby effectively reducing the system cost.
Specifically, as an embodiment, as shown in fig. 2, the signal input module 1 in the high-voltage control system further includes: a communication unit 11 and/or a signal acquisition unit 12, and a signal conversion unit 13;
the output end of the communication unit 11 is connected with the first input end of the signal conversion unit 13, the output end of the signal acquisition unit 12 is connected with the second input end of the signal conversion unit 13, and the output end of the signal conversion unit 13 is connected with the input end of the integrated controller 2;
when the communication unit 11 receives a system control signal and/or the signal acquisition unit 12 receives a sampling signal, the signal conversion unit 13 converts the system control signal and/or the sampling signal into a digital control signal, and the integrated controller 2 outputs the high-voltage circuit on signal or the high-voltage circuit off signal to the integrated drive module 3 according to the digital control signal.
The communication unit 11 includes, but is not limited to, a CAN communication unit, and is configured to interact with other systems on the electric vehicle, other than the high-voltage control system, and receive control signals from other systems or from a passenger. The signal acquisition unit 12 is used for sampling specified parameters on the electric vehicle, wherein the specified parameters include but are not limited to temperature, current, voltage and pipeline pressure, so as to realize closed-loop control of high-voltage equipment. Optionally, the signal acquisition unit 12 includes at least one of a temperature sensor, a current sensor, a voltage sensor, and a line pressure sensor. The system control signal of the communication unit 11 and the sampling signal of the signal acquisition unit 12 are sent to the information conversion unit 13. The information conversion unit 13 is configured to convert the system control signal and/or the sampling signal into a digital control signal, and input the digital control signal into the integrated controller 2. Alternatively, the information converting unit 13 may be a digitizer. The integrated controller 2 receives the digital control signal, generates a high-voltage circuit on signal or a high-voltage circuit off signal of the high-voltage equipment to be controlled according to the digital control signal, and sends the high-voltage circuit on signal or the high-voltage circuit off signal to the integrated driving module 3.
Here, the communication unit 11 and the signal conversion unit 13 are connected to the low voltage power supply, respectively. Optionally, the voltage signal output by the low-voltage power supply to the communication unit 11 and the signal conversion unit 12 in the signal input module 1 is 5V power supply voltage. The voltage signal output by the low-voltage power supply to the integrated controller 2 is 15V power supply voltage. As an embodiment of the present invention, a 12V power voltage output by a vehicle battery may be adopted, and the power voltage is boosted to a 15V power voltage through a dc signal converter and supplied to the integrated controller 2, and the power voltage is reduced to a 5V power voltage and supplied to the communication module 11 and the signal conversion module 12, so that a control portion of the high voltage control system operates in a low voltage environment. The direct current signal converter is a direct current transformer.
Specifically, as an embodiment, as shown in fig. 3, the integrated driving module 3 includes: a drive circuit 31 and a common switch circuit 32 of the high-voltage device;
the input end of the driving circuit 31 is connected with the output end of the integrated controller 2, the output end of the driving circuit 31 is connected with the first end of the shared switch circuit 32, the second end of the shared switch circuit 32 is connected with the anode of the battery pack 5, and the third end of the shared switch circuit 32 is connected with the cathode of the battery pack 5;
the common switch circuit 32 includes one or more device connection terminals, each of which is connected to one of the high voltage devices 4;
when receiving a high-voltage circuit connection signal, the driving circuit 31 sends a corresponding switch action signal to the common switch circuit 32, and the common switch circuit 32 connects one or more high-voltage devices 4 and a loop of the battery pack 5 according to the switch action signal;
when receiving the high-voltage circuit turn-off signal, the driving circuit 31 sends a corresponding switch action signal to the common switch circuit 32, and the common switch circuit 32 disconnects the loop of one or more high-voltage devices 4 and the battery pack 5 according to the switch action signal.
Here, the driving circuit 31 is configured to receive the high-voltage circuit on signal/high-voltage circuit off signal output by the integrated controller 2 and convert the high-voltage circuit on signal/high-voltage circuit off signal into a switching operation signal. The common switch circuit 32 is configured to receive a switch operation signal output by the driving circuit 31, and turn on the one or more high-voltage devices 4 and the circuit of the battery pack 5 according to the switch operation signal, so that the high-voltage devices 4 form a high-voltage path with the battery pack 5, or turn off the one or more high-voltage devices 4 and the circuit of the battery pack 5 according to the switch operation signal, so that the high-voltage devices 4 and the battery pack 5 break the high-voltage path. According to the invention, one low-voltage controller controls one or more high-voltage devices, one integrated drive circuit starts or closes one or more high-voltage devices, and each high-voltage device shares the integrated controller and the integrated drive module, so that the system cost is effectively reduced, the weight and the volume of parts are effectively reduced, and the arrangement space of a high-voltage system is saved.
Specifically, as an embodiment, as shown in fig. 4, the common switch circuit 32 includes a sub-switch circuit 321 corresponding to each of the high-voltage devices 4, the sub-switch circuit 321 corresponding to each of the high-voltage devices 4 includes a plurality of switch devices, and one or more switch devices are shared between the sub-switch circuits 321 corresponding to each of the high-voltage devices 4;
the output end of the driving circuit 31 is connected to the first end of the sub-switch circuit 321 corresponding to each high-voltage device 4, the second end of the sub-switch circuit 321 corresponding to each high-voltage device 4 is connected to the positive electrode of the battery pack 5, and the third end of the sub-switch circuit 321 corresponding to each high-voltage device 4 is connected to the negative electrode of the battery pack 5;
the sub-switch circuit 321 corresponding to each high-voltage device 4 includes one or more device connection terminals, each device connection terminal includes an input connection terminal and an output connection terminal, and the output connection terminal and the input connection terminal are respectively connected with the input terminal and the output terminal of the high-voltage device 4;
when receiving a high-voltage circuit connection signal, the driving circuit 31 sends a switching action signal to the sub-switch circuits 321 corresponding to one or more high-voltage devices 4, so that corresponding switch devices on the sub-switch circuits 321 are closed, and a loop of the high-voltage device 4 and the battery pack 5 is connected;
when receiving the high-voltage circuit turn-off signal, the driving circuit 31 sends a switching action signal to the sub-switch circuit 321 corresponding to one or more high-voltage devices 4, so that the corresponding switch device on the sub-switch circuit 321 is turned off, and the loop between the high-voltage device 4 and the battery pack 5 is disconnected.
In the embodiment of the present invention, the switch sharing circuit 32 includes a sub-switch circuit 321 corresponding to each of the high voltage devices 4. One or more switching devices are shared between the sub-switching circuits 321 of each of the high-voltage devices 4. Optionally, the switching device includes, but is not limited to, a semiconductor switching device, a relay, such as an IGBT. When the switching action signal is a switching action signal of the sub-switching circuit 321 corresponding to one high-voltage device 4, the common switching circuit 32 turns on/off the corresponding switching device on the sub-switching circuit 321 corresponding to the high-voltage device 4 according to the switching action signal, so that the high-voltage device 4 operates/stops operating; when the switching action signal is a switching action signal of the sub-switching circuit 321 corresponding to the plurality of high-voltage devices 4, the common switching circuit 32 turns on/off the corresponding switching device on the sub-switching circuit 321 corresponding to each high-voltage device 4 according to the switching action signal, so that the plurality of high-voltage devices 4 operate/stop operating.
Alternatively, as a preferred example of the present invention, when the sub-switch circuit 321 is a circuit obtained by combining the semiconductor switch devices, the switch sharing circuit 32 includes a switch group corresponding to each of the high-voltage devices 4, and the switch groups corresponding to each of the high-voltage devices 4 share one or more semiconductor switch devices with each other. The semiconductor switch device in the sub-switch circuit 321 corresponding to each of the high-voltage devices 4 is connected in the high-voltage circuit between the high-voltage device 4 and the battery pack 5. When n semiconductor switching devices are included in one sub-switching circuit, the switching operation signal output by the drive circuit 31 includes level signals of the n semiconductor switching devices in the sub-switching circuit. The level signal includes a high level and a low level, and the on/off operation of the semiconductor switching device is performed according to the high level/low level output from the driving circuit. When receiving a high level, the semiconductor switching device switches on a loop between the battery pack 5 and the high-voltage equipment 4, and the battery pack 5 and the high-voltage equipment 5 form a direct current path through the semiconductor switching device; when receiving a low level, the semiconductor switching device disconnects the circuit of the battery pack 5 and the high-voltage equipment 4, and the direct current path is disconnected. When the driving circuit 31 outputs high and low level signals to the semiconductor switching devices in the sub-switching circuit 321 corresponding to one high-voltage device 4 according to a preset time sequence and a preset period, the semiconductor switching devices in the sub-switching circuit 321 can adjust the turn-on number and the turn-on period of the semiconductor switching devices, and the battery pack 5 and the high-voltage device 4 form a direct current or alternating current path through different semiconductor switching devices in the sub-switching circuit 321; when the driving circuit 31 outputs high and low level signals to the semiconductor switching devices in the sub-switching circuits 321 corresponding to different high-voltage devices 4 in the common switching circuit 32 according to a preset timing and period, the different high-voltage devices 4 can be switched and power-controlled.
Alternatively, as a preferred example of the present invention, the common switching circuit 32 is described in detail below by taking an example in which the high-voltage device 4 includes a compressor and a heater. Fig. 5 is a circuit structure diagram of a shared switch circuit according to an embodiment of the present invention. In fig. 5, the high-voltage device 4 is a compressor 41 and a heater 42, and the common switching circuit 32 is the bridge arm inverter 20.
The driving circuit 31 is connected to the arm inverter 20, and the arm inverter 20 is connected to the compressor 41; the heaters 42 are respectively connected with the driving circuit 31 and the bridge arm inverter 20, wherein the bridge arm inverter 20 and the heaters 42 are both connected to an external battery pack 5.
Specifically, three phase lines are led out of the compressor 41, the bridge arm converter 20 also includes three bridge arms, which are a first bridge arm, a second bridge arm and a third bridge arm respectively, the first bridge arm includes a first switch device and a second switch device, the second bridge arm includes a third switch device and a fourth switch device, the third bridge arm includes a fifth switch device and a sixth switch device, wherein the first switch device, the third switch device and the fifth switch device are upper bridge arms of corresponding bridge arms, and the second switch device, the fourth switch device and the sixth switch device are lower bridge arms of corresponding bridge arms. Each of the bridge arms is connected in parallel to form a first junction and a second junction, and the phase lines of the compressor 41 are connected to the midpoints of the bridge arms in a one-to-one correspondence. The driving circuit 31 is connected to each of the bridge arms.
The heater 42 comprises a first heating control switch (7) and at least one heating core body, the first heating control switch is respectively connected with the driving circuit 31, the second junction end and the negative pole of the battery pack 5, and the first junction end is connected with the positive pole of the battery pack 5; one end of the heating core body is connected with the first heating control switch, the other end of the heating core body is connected with the midpoint of any bridge arm, and the heating core body comprises two heating resistors which are mutually connected in parallel.
The drive circuit 31 is configured to control the arm inverter 20 such that the battery pack 5, the arm inverter 20, and the compressor 41 form a first energy conversion circuit. The first switching device, the second switching device, the third switching device, the fourth switching device, the fifth switching device and the sixth switching device in the bridge arm converter 20 form a sub-switching circuit corresponding to the compressor 41.
The drive circuit 31 is configured to control the arm converter 20 such that the battery pack 5, the arm converter 20, and the heater 42 form a second energy conversion circuit. When the heating core in the heater 42 is connected to the first bridge arm, the first switching device constitutes a sub-switching circuit corresponding to the heater 42; when the heating core in the heater 42 is connected with the second bridge arm, the third switching device forms a sub-switching circuit corresponding to the heater 42; when the heating core in the heater 42 is connected to the first bridge arm and the second bridge arm, the first switching device and the third switching device form a sub-switching circuit corresponding to the heater 42; and so on.
Alternatively, as a preferred example of the present invention, the common switch circuit 32 is described in detail below by taking an example in which the high-voltage device 4 includes a motor and a plurality of heaters. Fig. 6 is a circuit diagram of a common switch circuit according to another embodiment of the present invention. In fig. 6, the high-voltage device 4 is a motor 43 and two sets of heaters, and the common switching circuit 32 is a bridge arm inverter 20.
The driving circuit 31 is connected to the bridge arm converter 20, and the bridge arm converter 20 is connected to the motor 43; each heater is respectively connected with the driving circuit 31 and the bridge arm converter 20, wherein the bridge arm converter 20 and the heaters are both connected to an external battery pack 5.
Specifically, three phase lines are led out from the motor 43, the bridge arm converter 20 also includes three bridge arms, which are a first bridge arm, a second bridge arm and a third bridge arm respectively, the first bridge arm includes a first switch device and a second switch device, the second bridge arm includes a third switch device and a fourth switch device, the third bridge arm includes a fifth switch device and a sixth switch device, wherein the first switch device, the third switch device and the fifth switch device are upper bridge arms of corresponding bridge arms, and the second switch device, the fourth switch device and the sixth switch device are lower bridge arms of corresponding bridge arms. Each of the bridge arms is connected in parallel to form a first bus end and a second bus end, and the phase lines of the motor 43 are connected with the middle points of the bridge arms in a one-to-one correspondence manner. The driving circuit 31 is connected to each of the bridge arms.
The first group of heaters 42 comprises a first heating control switch (7) and two heating cores, the first heating control switch is respectively connected with the driving circuit 31, the second junction and the negative pole of the battery pack 5, and the first junction is connected with the positive pole of the battery pack 5; one end of each heating core body is connected with the first heating control switch, and the other end of each heating core body is connected with the middle point of any different bridge arm; each heating core body comprises a heating resistor.
The second group of heaters 44 comprises a second heating control switch (8) and a heating core body, the second heating control switch is respectively connected with the driving circuit 31, the second junction end and the negative pole of the battery pack 5, and the first junction end is connected with the positive pole of the battery pack 5; one end of the heating core is connected with the second heating control switch, the other end of the heating core is connected with the middle point of any bridge arm, and the heating core comprises two heating resistors which are mutually connected in parallel.
The driving circuit 31 is configured to control the arm converter 20 such that the battery pack 5, the arm converter 20, and the motor 43 form a third energy conversion circuit. The first switching device, the second switching device, the third switching device, the fourth switching device, the fifth switching device and the sixth switching device in the bridge arm converter 20 form a sub-switching circuit corresponding to the motor 43.
The driving circuit 31 is configured to control the arm converter 20 such that the battery pack 5, the arm converter 20, and the heater form a second energy conversion circuit. For the first group of heaters 42, the first switching device and the third switching device in the bridge arm converter 20 constitute the sub-switching circuit corresponding to the first group of heaters 42; for the second group of heaters 44, the fifth switching devices in the bridge arm inverter 20 constitute the sub-switching circuits corresponding to the second group of heaters 44; and so on for other cases.
In the embodiment of the invention, the semiconductor switching devices in the driving modules of a plurality of high-voltage devices are separated, and one or more semiconductor switching devices are reused by sub-switching circuits corresponding to different high-voltage devices on a common switching circuit, so that the integration of the driving modules of the high-voltage devices is realized, the number of the semiconductor devices in a high-voltage control system is reduced, the maintenance of the high-voltage control system is facilitated, and the service life of the high-voltage devices is prolonged. On the other hand, the semiconductor switch device is easy to generate heat, in the prior art, the driving module of each high-voltage device is radiated through a liquid cooling system with a complex design, and after the driving module of the high-voltage device is integrated, the embodiment of the invention is favorable for simplifying a pipeline of a radiating system and improving the heat management efficiency of the power device.
According to another embodiment of the invention, a vehicle is provided, and fig. 7 is a schematic structural diagram of the vehicle in one embodiment of the application, and as shown in fig. 7, the vehicle comprises the high-voltage control system.
According to the automobile and the high-voltage control system, the components of the driving modules of the high-voltage devices are separated, the integrated driving modules are combined in a component sharing mode, the integrated controller is configured, the controller and the driving modules are shared by the high-voltage devices, one or more high-voltage devices can be controlled through the low-voltage controller, the integration level of the high-voltage control system is improved, the arrangement space of the high-voltage control system is optimized, the cost of the high-voltage control system is reduced, the pipelines of a heat dissipation system are simplified after the driving modules are integrated, and the control efficiency of the high-voltage control system is improved.
The above-mentioned embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the embodiments of the present invention, and they should be construed as being included therein.
Claims (9)
1. A high pressure control system, comprising:
the integrated controller comprises a signal input module, an integrated controller and an integrated driving module connected with the integrated controller;
the integrated driving module is connected with at least one high-voltage device, and the integrated driving module is connected with a battery pack;
the signal input module is connected with the integrated controller, and when the signal input module receives a high-voltage circuit control signal, the integrated controller outputs a high-voltage circuit connection signal to the integrated driving module according to the high-voltage circuit control signal, so that the integrated driving module is connected with one or more high-voltage devices and a loop of the battery pack;
when the signal input module receives a high-voltage circuit control signal, the integrated controller outputs a high-voltage circuit turn-off signal to the integrated driving module according to the high-voltage circuit control signal, so that the integrated driving module disconnects one or more high-voltage devices from a loop of the battery pack;
the integrated driving module includes: a drive circuit and a common switch circuit;
the input end of the driving circuit is connected with the output end of the integrated controller, the output end of the driving circuit is connected with the first end of the shared switch circuit, the second end of the shared switch circuit is connected with the anode of the battery pack, and the third end of the shared switch circuit is connected with the cathode of the battery pack;
the shared switch circuit comprises one or more equipment connecting ends, and each equipment connecting end is respectively connected with one high-voltage equipment;
when receiving a high-voltage circuit connection signal, the driving circuit sends a corresponding switch action signal to the shared switch circuit, and the shared switch circuit connects one or more high-voltage equipment and a loop of the battery pack according to the switch action signal;
and when receiving a high-voltage circuit turn-off signal, the driving circuit sends a corresponding switch action signal to the shared switch circuit, and the shared switch circuit disconnects one or more high-voltage devices from a loop of the battery pack according to the switch action signal.
2. The high voltage control system of claim 1, wherein the common switch circuit comprises a sub-switch circuit corresponding to each of the high voltage devices, the sub-switch circuit corresponding to each of the high voltage devices comprises a plurality of switch devices, and one or more switch devices are shared between the sub-switch circuits corresponding to each of the high voltage devices;
the output end of the driving circuit is connected with the first end of the sub-switch circuit corresponding to each high-voltage device, the second end of the sub-switch circuit corresponding to each high-voltage device is connected with the positive electrode of the battery pack, and the third end of the sub-switch circuit corresponding to each high-voltage device is connected with the negative electrode of the battery pack;
each sub-switch circuit corresponding to the high-voltage equipment comprises one or more equipment connecting ends, each equipment connecting end comprises an input connecting end and an output connecting end, and the output connecting end and the input connecting end are respectively connected with the input end and the output end of the high-voltage equipment;
when receiving a high-voltage circuit connection signal, the driving circuit sends a switching action signal to one or more sub-switching circuits corresponding to the high-voltage equipment, so that corresponding switching devices on the sub-switching circuits are closed, and a loop of the high-voltage equipment and the battery pack is connected;
when receiving a high-voltage circuit turn-off signal, the driving circuit sends a switch action signal to a sub-switch circuit corresponding to one or more high-voltage devices, so that corresponding switch devices on the sub-switch circuit are switched off, and a loop of the high-voltage devices and the battery pack is disconnected.
3. The high voltage control system of claim 2, wherein said switching device is a semiconductor switching device.
4. A high voltage control system according to any of claims 1 to 3, wherein the high voltage device comprises at least one of a heater, a compressor, a motor or a charger.
5. The high voltage control system of any one of claims 1 to 3, wherein the signal input module comprises: the communication unit and/or the signal acquisition unit and the signal conversion unit;
the output end of the communication unit is connected with the first input end of the signal conversion unit, the output end of the signal acquisition unit is connected with the second input end of the signal conversion unit, and the output end of the signal conversion unit is connected with the input end of the integrated controller;
when the communication unit receives a system control signal and/or the signal acquisition unit receives a sampling signal, the signal conversion unit converts the system control signal and/or the sampling signal into a digital control signal, and the integrated controller outputs the high-voltage circuit on signal or the high-voltage circuit off signal to the integrated drive module according to the digital control signal.
6. A high voltage control system according to any one of claims 1 to 3, wherein the signal input module and the integrated controller are each connected to a low voltage power supply which provides power to the signal input module and the integrated controller, respectively.
7. The high voltage control system of claim 6, wherein the communication unit and the signal conversion unit in the signal input module are respectively connected to the low voltage power supply, and the voltage signal output by the low voltage power supply to the communication unit and the signal conversion unit in the signal input module is 5V power supply voltage;
the voltage signal output by the low-voltage power supply to the integrated controller is 15V power supply voltage.
8. The high-voltage control system of claim 5, wherein the signal acquisition unit comprises at least one of a temperature sensor, a current sensor, a voltage sensor, a line pressure sensor.
9. A vehicle characterized in that the vehicle comprises a high-voltage control system according to any one of claims 1 to 8.
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| CN103187761B (en) * | 2011-12-31 | 2016-07-27 | 比亚迪股份有限公司 | Discharge system for electric automobile |
| CN103303159B (en) * | 2013-05-09 | 2015-07-29 | 常州迈控智能科技有限公司 | Electric vehicle controller and Dual Drive control method thereof |
| CN105109361B (en) * | 2015-07-01 | 2018-02-02 | 深圳电擎科技有限公司 | Electric automobile Multifunctional electric power integrated system and complex control system |
| CN107599848B (en) * | 2017-10-23 | 2023-11-17 | 宁德时代新能源科技股份有限公司 | High voltage detection circuit, detector, battery device and vehicle |
| CN107621565B (en) * | 2017-10-23 | 2024-03-22 | 宁德时代新能源科技股份有限公司 | High voltage detection circuit, detector, battery device and vehicle |
| KR102511551B1 (en) * | 2017-12-28 | 2023-03-16 | 삼성에스디아이 주식회사 | Battery management sytem and battery pack incuding the same |
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