Towed electric oil-to-electric low-voltage up-and-down power system and automobile

Abstract

The utility model provides a kind of drag electric formula oil changes electricity low-voltage power on and off system and car, belong to involve the technical field of automobile circuit, and this system includes: whole vehicle controller circuit, connect with ignition switch, and connect power supply through first insurance relay and second insurance relay, also connect middle-low voltage control circuit through third insurance relay, for after receiving ignition switch ON block signal, control first insurance relay attraction, when the received ignition switch ON block signal is interrupted, control second insurance relay attraction, and control third insurance relay attraction, and send delay power-off signal to middle-low voltage control circuit;Middle-low voltage control circuit is connected with motor, for when power on control motor rotation, and after receiving delay power-off signal, delay power-off.The utility model can solve the technical problem that when power off, car will appear communication failure and security risk in drag electric formula oil changes electricity scheme.

Description

Technical Field

[0001] This utility model relates to the field of automotive circuit technology, specifically to a low-voltage power supply and discharge system for converting gasoline vehicles to electric power and a vehicle. Background Technology

[0002] The existing gasoline-powered vehicle conversion solution involves removing the original engine and fuel system, retaining the original low-voltage components and wiring harness, and installing an electric drive system. Power is supplied to the system via an external power source and a cable reel. However, when the vehicle's power is interrupted, the low-voltage components also lose power, causing communication failures and safety hazards. Utility Model Content

[0003] In view of this, it is necessary to provide a low-voltage power supply and de-energization system and vehicle for electric conversion of gasoline vehicles, in order to solve the technical problems of communication failure and safety hazards that occur when the vehicle loses power in the electric conversion of gasoline vehicles.

[0004] To address the aforementioned issues, firstly, this utility model provides a low-voltage power supply system for converting gasoline vehicles to electric power, comprising: a vehicle controller circuit, a medium-low voltage control circuit, a fuse relay, and a wireless communication module; The vehicle controller circuit is connected to the ignition switch and connected to the power supply through the first and second fuse relays. It is also connected to the medium-low voltage control circuit through the third fuse relay. When the ignition switch ON signal is received, the controller circuit controls the first fuse relay to engage. When the received ignition switch ON signal is interrupted, the controller circuit controls the second fuse relay to engage and the third fuse relay to engage. The controller circuit also sends a delayed power-off signal to the medium-low voltage control circuit. The medium- and low-voltage control circuit is connected to the motor and is used to control the motor rotation when powered on and to power off after a delay upon receiving a delayed power-off signal.

[0005] In one possible implementation, the vehicle controller circuit is further configured to, upon receiving the START signal from the ignition switch, control the third fuse relay to engage and send a power-on command to the medium-low voltage control circuit to power on the medium-low voltage control circuit.

[0006] In one possible implementation, the low-voltage power supply system for converting oil to electricity also includes: the wireless communication module; The wireless communication module is connected to the rectifier cabinet and is used to control the rectifier cabinet to power off after receiving the power-down signal sent by the vehicle controller circuit.

[0007] In one possible implementation, the wireless communication module is a LoRa module.

[0008] In one possible implementation, the low-voltage power supply system for converting oil-to-electricity systems also includes: a fourth safety relay; The wireless communication module is connected to the emergency stop switch via the fourth fuse relay, and the emergency stop switch is also connected to the power supply and the vehicle controller circuit. The fourth fuse relay is also grounded. The vehicle controller circuit is also used to stop sending remote power failure signals to the wireless communication module if it detects that the remote power failure signal received by the wireless communication module has not been grounded through the fourth safety relay.

[0009] In one possible implementation, the low-voltage power supply system for converting oil to electricity also includes: a fifth safety relay; The wireless communication module is connected to the emergency stop switch via a fifth safety relay; The vehicle controller circuit is also used to control the fifth safety relay to engage when a remote power failure signal is detected to be grounded through the fourth safety relay, and to control the rectifier cabinet to lose power through the wireless communication module.

[0010] In one possible implementation, the vehicle controller circuit is a vehicle controller circuit with an integrated display device.

[0011] In one possible implementation, the vehicle controller circuit is further configured to enter a power-off state after the delay time corresponding to the delayed power-down signal.

[0012] In one possible implementation, the vehicle controller circuit and the medium-low voltage control circuit are connected via a CAN bus for communication.

[0013] Secondly, this utility model also provides an automobile, including the above-described system.

[0014] The beneficial effects of the above implementation method are as follows: The electric-powered low-voltage power-on / off system and vehicle provided by this utility model, after receiving the ignition switch ON signal, control the first fuse relay to engage. The vehicle controller is powered on after connecting to the power supply through the first fuse relay, also known as wake-up power. When the received ignition switch ON signal is interrupted, the first fuse relay would normally be disconnected. At this time, a delayed power-off signal is sent to the second fuse relay, controlling it to engage and delaying the power-off of the vehicle controller circuit. The vehicle controller circuit is generally connected to the communication device in the vehicle circuit. At this time, the vehicle controller can continue to control the communication device to continue communication, avoiding safety hazards. It also controls the third fuse relay to engage and sends a delayed power-off signal to the low-voltage control circuit, controlling the low-voltage control voltage to delay power-off, allowing continued control of motor rotation. The low-voltage control circuit is connected to the motor and is used to control motor rotation when powered on and to delay power-off after receiving the delayed power-off signal. Therefore, this utility model can solve the technical problem that the car will experience communication failures and safety hazards when the car loses power in the electric conversion scheme. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0016] Figure 1 A circuit diagram of an embodiment of the electric traction-type low-voltage power supply system for converting oil-to-electricity systems provided by this utility model; Figure 2 This is an electrical system architecture diagram of one embodiment of the electric conversion scheme for oil-to-electric vehicles provided by this utility model. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only a part of the embodiments of the present utility model, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.

[0018] In the description of the embodiments of this application, unless otherwise stated, "a plurality of" means two or more.

[0019] The terms “comprising” and “having” and any variations thereof in the embodiments of this utility model are intended to cover non-exclusive inclusion, for example, a process, method, apparatus, product or device that includes a series of steps or modules is not necessarily limited to those steps or modules that are explicitly listed, but may include other steps or modules that are not explicitly listed or that are inherent to such process, method, product or device.

[0020] The naming or numbering of steps in this embodiment of the utility model does not mean that the steps in the method flow must be executed in the time / logical order indicated by the naming or numbering. The execution order of the named or numbered process steps can be changed according to the technical purpose to be achieved, as long as the same or similar technical effect can be achieved.

[0021] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of the present invention. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a mutually exclusive, independent, or alternative embodiment. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0022] This utility model provides a low-voltage power supply and off system for converting gasoline vehicles to electric power, such as... Figure 1 As shown, the system includes: a vehicle control unit (VCU) circuit 101, a medium- and low-voltage control circuit 103, a fuse relay, and a wireless communication module 102; The vehicle controller circuit 101 is connected to the ignition switch and is connected to the power supply through the first fuse relay K1 and the second fuse relay K2. It is also connected to the medium-low voltage control circuit 103 through the third fuse relay K3. When the ignition switch ON signal is received, the circuit controls the first fuse relay K1 to activate. When the received ignition switch ON signal is interrupted, the circuit controls the second fuse relay K2 to activate and the third fuse relay K3 to activate. The circuit also sends a delayed power-off signal to the medium-low voltage control circuit 103. The medium-low voltage control circuit 103 is connected to the motor M and is used to control the rotation of the motor when it is powered on, and to power off after a delay upon receiving a delayed power-off signal.

[0023] It is understandable that, such as Figure 1 As shown, the system also includes resistors R1-R9. Figure 2 As shown, the electric conversion scheme mainly consists of a diesel engine 201, a gearbox 202, a rectifier system 203, a power transmission system 204, a motor controller 205, and a drive motor 206.

[0024] When the ignition switch is turned to the ON position, the entire vehicle's electrical system is connected, and the vehicle's systems begin self-checking to provide basic power for driving. The START position is the setting on the car's ignition switch used to start the engine.

[0025] The electric-powered low-voltage power-on / off system provided by this utility model mainly comprises a VCU circuit integrating display and control, a multi-functional medium and low voltage control circuit 103, a fuse relay, and a wireless communication module 102 for remote power-off. The power-off system provided by this utility model can realize delayed power-off and remote control of the rectifier cabinet power-off at the vehicle end, avoiding communication failures and safety hazards caused by simultaneous power failure of the low-voltage components.

[0026] This utility model provides a low-voltage power supply and de-energization system for converting gasoline vehicles to electric power. It retains the original low-voltage system of the vehicle and adds an electric drive low-voltage system. The VCU is mainly used to receive relevant commands from the driver and issue corresponding control signals. The multi-in-one low-voltage control circuit 103 controls the motor rotation after receiving the power-on command. The fuse relay is activated by receiving the corresponding signal from the VCU. After receiving the power-off signal, the LORA module remotely controls the rectifier cabinet to de-energize.

[0027] The electric-powered low-voltage power supply system for converting oil to electric power provided by this utility model includes constant power terminals in all low-voltage components. The VUC, LORA module with display screen, and multi-function constant power terminals are pins 17B, 1, 34 & 35, respectively. The 24V constant power is directly connected after being protected by the fuse box.

[0028] This utility model provides a low-voltage power-on / off system for converting oil-to-electric vehicles, which includes a delayed power-off function, mainly achieved through the second safety relay K2. When powering off, the key switch is turned from the ON position to the OFF position, the VCU detects the interruption of the ON signal input at pin 5A, the power-on signal of the medium and low voltage control circuit 103 stops being sent, the third safety relay K3 is disconnected, and the medium and low voltage control circuit 103 enters a sleep state.

[0029] When the ON signal is interrupted, the VCU immediately sends a delayed power-down signal, which activates the second safety relay K2. The wake-up power is still input to the VCU, so it will not immediately go into sleep mode. As time goes on, when the delayed power-down signal consumes all the energy stored in the internal capacitor of the VCU, the delayed power-down signal disappears, and the VCU enters sleep mode after the low-voltage control circuit 103 goes into sleep mode.

[0030] In some embodiments, the vehicle controller circuit 101 is further configured to control the third safety relay K3 to engage after receiving the START signal from the ignition switch, and send a power-on command to the medium-low voltage control circuit 103 to control the medium-low voltage control circuit 103 to power on.

[0031] Understandably, when the original car key switch is turned to the ON position, the wake-up power is supplied to pin 5A of the VCU, simultaneously activating the switch of the first fuse relay K1. The wake-up power is then supplied to pin 17A through the first fuse relay K1. After the display screen detects the ON position signal, pin 11A outputs a power-on signal to the low-voltage control circuit 103, activating the switch of the third fuse relay K3. The wake-up power of the low-voltage control circuit 103 is then supplied to pin 12 of the low-voltage control circuit 103.

[0032] All low-voltage components are activated. The ignition switch (i.e., the key switch) is turned to the START position. Pin 4A of the VCU receives the high-voltage power-on signal and controls the multi-function high-voltage power-on via CAN communication.

[0033] In some embodiments, the electric-powered low-voltage power supply system for converting oil to electricity further includes: the wireless communication module 102; The wireless communication module 102 is communicatively connected to the rectifier cabinet and is used to control the rectifier cabinet to power off after receiving a power-down signal sent by the vehicle controller circuit 101. The wireless communication module 102 is a LORA (Long Range Radio) module.

[0034] Understandably, LoRa modules feature low power consumption, long-distance transmission, and strong penetration.

[0035] In some embodiments, the electric-powered low-voltage power supply system for converting oil to electricity further includes: a fourth safety relay K4; The wireless communication module 102 is connected to the emergency stop switch through the fourth safety relay K4, and the emergency stop switch is also connected to the power supply and the vehicle controller circuit 101. The fourth safety relay K4 is also grounded. The vehicle controller circuit 101 is also used to stop sending remote power failure signals to the wireless communication module 102 when it is detected that the remote power failure signal received by the wireless communication module 102 has not been grounded through the fourth safety relay K4.

[0036] It is understood that the electric-powered low-voltage power supply system provided by this utility model includes a delayed remote power-off function, which is mainly controlled by an emergency stop switch and a relay. The emergency stop switch is normally open. When the VCU detects that the remote power-off signal sent has not been grounded through the fourth fuse relay K4, the VCU confirms that the vehicle-end status is normal. The coil of the fifth fuse relay K5 is not energized and does not engage. Pins 5 and 6 of the LORA module channel are not connected, and no remote power-off signal is sent to the LORA receiver in the vehicle controller. The rectifier cabinet is not powered.

[0037] In some embodiments, the electric-powered low-voltage power supply system for oil-to-electric conversion also includes: a fifth safety relay K5; The wireless communication module 102 is connected to the emergency stop switch via the fifth safety relay K5; The vehicle controller circuit 101 is also used to control the relay of the fifth safety relay K5 to be activated when the remote power failure signal is detected to be grounded through the fourth safety relay K4, and to control the rectifier cabinet to be powered off through the wireless communication module 102.

[0038] Understandably, when the driver presses the emergency stop button, the VCU detects the remote power-off signal sent to ground through the fourth safety relay K4, immediately disconnects the MCU power-on signal, the low-voltage control circuit 103 enters sleep mode, the coil of the fifth safety relay K5 is energized and engaged, pins 5 and 6 of the LORA module channel are connected, and a remote power-off signal is sent to the LORA receiver in the vehicle controller, the rectifier cabinet is de-energized, and the remote power-off function of the low-voltage system is realized.

[0039] In some embodiments, the vehicle controller circuit 101 is a vehicle controller circuit 101 with an integrated display device.

[0040] Understandably, the display device can display the signal information of the vehicle controller circuit 101 and can input control signals.

[0041] In some embodiments, the vehicle controller circuit 101 is further configured to enter a power-off state after the delay time corresponding to the delayed power-down signal has elapsed.

[0042] Understandably, a delayed electrical signal can be a timing signal, which is high for a certain period of time and then low after that period.

[0043] In some embodiments, the vehicle controller circuit 101 and the medium-low voltage control circuit 103 are connected via a CAN (Controller Area Network) bus.

[0044] It is understandable that the vehicle controller circuit 101 can control the low-voltage control circuit 103 to be powered on via the CAN bus.

[0045] This utility model also provides a car, including the electric-assisted low-voltage power supply and dispensing system described in any of the above-mentioned claims.

[0046] The above provides a detailed description of the electric-drive low-voltage power supply and off system for oil-to-electric conversion and the automobile provided by this utility model. Specific examples have been used to illustrate the principle and implementation of this utility model. The description of the above embodiments is only for the purpose of helping to understand the method and core idea of ​​this utility model. At the same time, for those skilled in the art, there will be changes in the specific implementation and application scope based on the idea of ​​this utility model. Therefore, the content of this specification should not be construed as a limitation of this utility model.

Claims

1. A low-voltage power supply and discharge system for converting oil-to-electricity systems, characterized in that, include: Vehicle controller circuit, medium and low voltage control circuit, fuse relay and wireless communication module; The vehicle controller circuit is connected to the ignition switch and connected to the power supply through the first and second fuse relays. It is also connected to the medium-low voltage control circuit through the third fuse relay. When the ignition switch ON signal is received, the controller circuit controls the first fuse relay to engage. When the received ignition switch ON signal is interrupted, the controller circuit controls the second fuse relay to engage and the third fuse relay to engage. The controller circuit also sends a delayed power-off signal to the medium-low voltage control circuit. The medium- and low-voltage control circuit is connected to the motor and is used to control the motor rotation when powered on and to power off after a delay upon receiving a delayed power-off signal.

2. The low-voltage power supply and discharge system for oil-to-electric conversion as described in claim 1, characterized in that, The vehicle controller circuit is also used to control the third fuse relay to engage after receiving the START signal from the ignition switch, and send a power-on command to the medium-low voltage control circuit to control the medium-low voltage control circuit to power on.

3. The low-voltage power supply and discharge system for oil-to-electric conversion as described in claim 1, characterized in that, Also includes: The wireless communication module; The wireless communication module is connected to the rectifier cabinet and is used to control the rectifier cabinet to power off after receiving the power-down signal sent by the vehicle controller circuit.

4. The low-voltage power supply and discharge system for oil-to-electric conversion according to claim 3, characterized in that, The wireless communication module is a LoRa module.

5. The low-voltage power supply and off system for oil-to-electric conversion according to claim 1, characterized in that, Also includes: Fourth safety relay; The wireless communication module is connected to the emergency stop switch via the fourth fuse relay, and the emergency stop switch is also connected to the power supply and the vehicle controller circuit. The fourth fuse relay is also grounded. The vehicle controller circuit is also used to stop sending remote power failure signals to the wireless communication module if it detects that the remote power failure signal received by the wireless communication module has not been grounded through the fourth safety relay.

6. The low-voltage power supply and discharge system for oil-to-electric conversion according to claim 5, characterized in that, Also includes: Fifth safety relay; The wireless communication module is connected to the emergency stop switch via a fifth safety relay; The vehicle controller circuit is also used to control the fifth safety relay to engage when a remote power failure signal is detected to be grounded through the fourth safety relay, and to control the rectifier cabinet to lose power through the wireless communication module.

7. The low-voltage power supply and off system for oil-to-electric conversion according to claim 1, characterized in that, The vehicle controller circuit is a vehicle controller circuit with an integrated display device.

8. The low-voltage power supply and off system for oil-to-electric conversion according to claim 1, characterized in that, The vehicle controller circuit is also used to enter power-off mode after the delay time corresponding to the delayed power-down signal.

9. The low-voltage power supply and off system for oil-to-electric conversion according to any one of claims 1-8, characterized in that, The vehicle controller circuit and the medium-low voltage control circuit are connected via a CAN bus for communication.

10. A car, characterized in that, Includes the system described in any one of claims 1-9.

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