Manual switch monitoring method and new energy vehicle

Abstract

The present invention relates to the field of vehicle control technology, and in particular to a manual switch monitoring method and a new energy vehicle. The method comprises: when the new energy vehicle is in an upper high-voltage state, obtaining the real-time voltage between the low-voltage battery and the manual switch, wherein the low-voltage battery is electrically connected to the manual switch; when the real-time voltage is less than a preset voltage threshold, obtaining the driver's seat usage information; when the driver's seat usage information indicates that the driver's seat is used, generating a switch accidental disconnection prompt message, wherein the switch accidental disconnection prompt message is used to prompt the manual switch to be accidentally disconnected; when the driver's seat usage information indicates that the driver's seat is not used, generating a switch manual disconnection prompt message, wherein the switch manual disconnection prompt message is used to prompt the manual switch to be manually disconnected. The present invention is used to solve the defect in the prior art that the disconnection of the manual switch leads to a high-voltage electric shock safety hazard in the maintenance process.

Description

Technical Field

[0001] The present invention relates to the field of vehicle control technology, and in particular to a manual switch monitoring method and a new energy vehicle. Background Art

[0002] For new energy vehicles, in order to prevent accidental power outages caused by the manual switch being accidentally disconnected (e.g., a wiring harness break, switch failure, etc.), a high-voltage DC power supply (DCDC power supply for short) is usually installed behind the manual switch. When the vehicle is at high voltage, the DCDC outputs voltage. At this time, if the manual switch is disconnected, the vehicle power supply is still supplied by the DCDC, and the high voltage is maintained, allowing normal driving. However, when a new energy vehicle is parked for maintenance, if the operation is not standardized, even if the manual switch is disconnected, the vehicle power supply is still supplied by the DCDC, and the vehicle high voltage is maintained. If relevant personnel perform maintenance at this time, a high-voltage electric shock accident may occur, posing a huge safety hazard. Summary of the Invention

[0003] The present invention provides a manual switch monitoring method and a new energy vehicle, which are used to solve the defect in the prior art that the disconnection of the manual switch leads to a high-voltage electric shock safety hazard during the maintenance process.

[0004] The present invention provides a manual switch monitoring method, comprising: when a new energy vehicle is in an upper high-voltage state, obtaining a real-time voltage between a low-voltage battery and a manual switch, wherein the low-voltage battery is electrically connected to the manual switch; when the real-time voltage is less than a preset voltage threshold, obtaining driver's seat usage information; when the driver's seat usage information indicates that the driver's seat is used, generating a switch accidental disconnection prompt message, wherein the switch accidental disconnection prompt message is used to prompt that the manual switch is accidentally disconnected; when the driver's seat usage information indicates that the driver's seat is not used, generating a switch manual disconnection prompt message, wherein the switch manual disconnection prompt message is used to prompt that the manual switch is manually disconnected.

[0005] According to a manual switch monitoring method provided by the present invention, obtaining the real-time voltage between the low-voltage battery and the manual switch includes: obtaining a first real-time voltage and a second real-time voltage between the low-voltage battery and the manual switch, wherein the first real-time voltage is collected by a first wiring harness, and the second real-time voltage is collected by a second wiring harness, and the first wiring harness and the second wiring harness are independent of each other; obtaining the driver's seat usage information when the real-time voltage is less than a preset voltage threshold includes: obtaining the driver's seat usage information when the first real-time voltage is less than the preset voltage threshold and the second real-time voltage is less than the preset voltage threshold.

[0006] According to a manual switch monitoring method provided by the present invention, after obtaining the first real-time voltage and the second real-time voltage between the low-voltage battery and the manual switch, it also includes: when the first real-time voltage is less than the preset voltage threshold and the second real-time voltage is greater than or equal to the preset voltage threshold, generating the wiring harness abnormality prompt information; or, when the first real-time voltage is greater than or equal to the preset voltage threshold and the second real-time voltage is less than the preset voltage threshold, generating the wiring harness abnormality prompt information; wherein, the wiring harness abnormality prompt information is used to prompt that the first wiring harness or the second wiring harness is abnormally connected.

[0007] According to a manual switch monitoring method provided by the present invention, when the driver's seat usage information indicates that the driver's seat is not in use, after generating the switch manual disconnection prompt information, the method further includes: transmitting the switch manual disconnection prompt information to the instrument of the new energy vehicle, wherein the instrument is used to display the manual switch manual disconnection prompt information based on the switch manual disconnection prompt information; transmitting the switch manual disconnection prompt information to a sound alarm configured for the new energy vehicle, wherein the sound alarm is used to broadcast the sound prompt information of the manual switch manual disconnection based on the switch manual disconnection prompt information.

[0008] According to a manual switch monitoring method provided by the present invention, after transmitting the switch manual disconnection prompt information to the sound alarm configured for the new energy vehicle, it also includes: obtaining the sound alarm duration; when the sound alarm duration reaches a preset duration threshold, based on the switch manual disconnection prompt information, controlling at least one high-voltage component to be powered off in sequence according to a preset order.

[0009] The present invention also provides a new energy vehicle, comprising a controller, a low-voltage battery, a manual switch, a driver's seat sensor, and a low-voltage collection harness; the low-voltage battery is electrically connected to the manual switch, a first end of the low-voltage collection harness is connected to the controller, and a second end of the low-voltage collection harness is connected to an equipotential point between the low-voltage battery and the manual switch; the low-voltage collection harness is configured to collect a real-time voltage between the low-voltage battery and the manual switch and transmit the real-time voltage to the controller; the driver's seat sensor is configured to collect driver's seat usage information and transmit the driver's seat usage information to the controller; the controller is configured to obtain the real-time voltage when the new energy vehicle is in an upper high-voltage state, obtain the driver's seat usage information when the real-time voltage is less than a preset voltage threshold, and generate a switch accidental disconnection prompt message when the driver's seat usage information indicates that the driver's seat is occupied, wherein the switch accidental disconnection prompt message is configured to prompt that the manual switch is accidentally disconnected, and generate a switch manual disconnection prompt message when the driver's seat usage information indicates that the driver's seat is unoccupied, wherein the switch manual disconnection prompt message is configured to prompt that the manual switch is manually disconnected.

[0010] According to a new energy vehicle provided by the present invention, the low-voltage collection harness includes a first harness and a second harness, and the first harness and the second harness are independent of each other; the first harness is used to collect a first real-time voltage between the low-voltage battery and the manual switch, and transmit the first real-time voltage to the controller; the second harness is used to collect a second real-time voltage between the low-voltage battery and the manual switch, and transmit the second real-time voltage to the controller; the controller is used to obtain the first real-time voltage and the second real-time voltage, and obtain the driver's seat usage information when the first real-time voltage is less than the preset voltage threshold and the second real-time voltage is less than the preset voltage threshold.

[0011] A new energy vehicle provided according to the present invention also includes an instrument; the controller is used to obtain the first real-time voltage and the second real-time voltage between the low-voltage battery and the manual switch, and when the first real-time voltage is less than the preset voltage threshold and the second real-time voltage is greater than or equal to the preset voltage threshold, generate a wiring harness abnormality prompt information; or, when the first real-time voltage is greater than or equal to the preset voltage threshold and the second real-time voltage is less than the preset voltage threshold, generate the wiring harness abnormality prompt information; transmit the wiring harness abnormality prompt information to the instrument; the instrument is used to display a prompt information of abnormal connection of the first wiring harness or the second wiring harness based on the wiring harness abnormality prompt information.

[0012] A new energy vehicle provided by the present invention also includes an instrument and a sound alarm; the controller is used to generate a switch manual disconnection prompt message when the driver's seat usage information indicates that the driver's seat is not in use, and then transmit the switch manual disconnection prompt message to the instrument of the new energy vehicle; the switch manual disconnection prompt message is transmitted to the sound alarm configured for the new energy vehicle; the instrument is used to display a prompt message of the manual switch manual disconnection based on the switch manual disconnection prompt message; the sound alarm is used to broadcast a sound prompt message of the manual switch manual disconnection based on the switch manual disconnection prompt message.

[0013] According to a new energy vehicle provided by the present invention, the controller is used to obtain the duration of the sound alarm after transmitting the manual disconnection prompt information of the switch to the sound alarm configured for the new energy vehicle; when the sound alarm duration reaches a preset duration threshold, based on the manual disconnection prompt information of the switch, control at least one high-voltage component to be powered off in sequence according to a preset order.

[0014] The manual switch monitoring method and new energy vehicle provided by the present invention obtain the real-time voltage between the low-voltage battery and the manual switch when the new energy vehicle is in an upper high-voltage state, wherein the low-voltage battery is electrically connected to the manual switch; when the real-time voltage is less than a preset voltage threshold, the driver's seat usage information is obtained; when the driver's seat usage information indicates that the driver's seat is used, a switch accidental disconnection prompt message is generated, wherein the switch accidental disconnection prompt message is used to prompt that the manual switch is accidentally disconnected; when the driver's seat usage information indicates that the driver's seat is not used, a switch manual disconnection prompt message is generated, wherein the switch manual disconnection prompt message is used to prompt that the manual switch is manually disconnected. In the above process, when the real-time voltage is less than the preset voltage threshold, it indicates that the manual switch has been disconnected. In order to avoid the risk of high-voltage electric shock, the driver's seat usage information is used to determine whether the manual switch is accidentally disconnected or manually disconnected, thereby generating corresponding prompt information for prompting, thereby ensuring the safety of the maintenance process. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions in the present invention or the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0016] Figure 1 This is one of the flow charts of the manual switch monitoring method provided by the present invention;

[0017] Figure 2This is the second flow chart of the manual switch monitoring method provided by the present invention;

[0018] Figure 3 This is one of the connection diagrams of components for assembling new energy vehicles provided by the present invention;

[0019] Figure 4 This is the second connection diagram of the components for assembling new energy vehicles provided by the present invention;

[0020] Figure 5 This is a schematic diagram of the structural connection of the manual switch monitoring device provided by the present invention;

[0021] Figure 6 It is a structural schematic diagram of the electronic device provided by the present invention. DETAILED DESCRIPTION

[0022] To make the objectives, technical solutions, and advantages of the present invention more clear, the technical solutions of the present invention will be clearly and completely described below in conjunction with the accompanying drawings. Obviously, the embodiments described are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts shall fall within the scope of protection of the present invention.

[0023] The following combination Figures 1 to 6 The manual switch monitoring method and new energy vehicle of the present invention are described.

[0024] In one embodiment, Figure 1 As shown in the figure, the manual switch monitoring method is implemented in the following steps:

[0025] Step 101 : When the new energy vehicle is in an upper high voltage state, obtain a real-time voltage between a low-voltage battery and a manual switch, wherein the low-voltage battery is electrically connected to the manual switch.

[0026] In this embodiment, the manual switch monitoring method can be implemented in the form of a software algorithm, which is configured in a controller with data processing capabilities. The controller can communicate with other components of the new energy vehicle to monitor the manual switch. Preferably, the controller can be a vehicle control unit (VCU) that has been configured in the new energy vehicle itself.

[0027] In this embodiment, the new energy vehicle is powered by a high-voltage DC power supply during operation, requiring the vehicle to be in the upper high-voltage state. Before entering the upper high-voltage state, a manual switch must be closed, using a key or other means, to ensure the vehicle starts and its low-voltage electrical appliances function properly. A low-voltage battery is connected to the front terminal of the manual switch, establishing an electrical connection between the low-voltage battery and the manual switch. The rear terminal of the manual switch is connected to a high-voltage DC power supply via an electromagnetic switch. This high-voltage DC power supply has its voltage reduced as needed. Specifically, the original high-voltage DC power supply is transformed and then connected to the electromagnetic switch. When the manual switch is open, the low-voltage battery temporarily provides low-voltage power to the new energy vehicle, ensuring the vehicle's low-voltage power needs. When the manual switch is closed, the low-voltage DC power converted from the high-voltage DC power supply provides low-voltage power to the vehicle and simultaneously charges the low-voltage battery. When the manual switch is open, the voltage between the manual switch and the low-voltage battery is lower than when it is closed. For example, when the manual switch of a new energy vehicle is closed, the voltage between the manual switch and the low-voltage battery is 28 volts (V), and when the manual switch is open, the voltage between the manual switch and the low-voltage battery is 26.5 V. Therefore, the status of the manual switch can be monitored by using the difference in real-time voltage between the manual switch and the low-voltage battery when the manual switch is open and closed.

[0028] Step 102: When the real-time voltage is less than a preset voltage threshold, obtain driver seat usage information.

[0029] In this embodiment, after obtaining the real-time voltage, it is compared with a preset voltage threshold. This preset voltage threshold is set based on the performance and actual conditions of the new energy vehicle. For example, the preset voltage threshold for one new energy vehicle is set to 27V. When the real-time voltage is greater than or equal to the preset voltage threshold, it indicates that the manual switch is closed and the new energy vehicle can drive normally. When the real-time voltage is less than the preset voltage threshold, it indicates that the manual switch is disconnected, and driver's seat usage information is required to determine whether the manual switch was disconnected accidentally or manually.

[0030] In this embodiment, the driver's seat usage information is used to indicate whether the driver's seat is currently in use. Specifically, this information can be generated by a device such as a pressure sensor installed under the driver's seat. For example, when the driver is in the driver's seat, pressure increases, and the pressure sensor generates and transmits driver's seat usage information to the controller, indicating that the driver's seat is occupied. When the driver's seat is unoccupied, the pressure sensor generates and transmits driver's seat usage information to the controller, indicating that the driver's seat is unoccupied. This driver's seat usage information is then used to determine whether the manual switch was disconnected accidentally or intentionally.

[0031] In one embodiment, the real-time voltage between the low-voltage battery and the manual switch is obtained by: obtaining a first real-time voltage and a second real-time voltage between the low-voltage battery and the manual switch, wherein the first real-time voltage is collected by a first wiring harness and the second real-time voltage is collected by a second wiring harness, and the first wiring harness and the second wiring harness are independent of each other. If the real-time voltage is less than a preset voltage threshold, driver's seat usage information is obtained by: obtaining driver's seat usage information if both the first real-time voltage and the second real-time voltage are less than the preset voltage threshold.

[0032] In this embodiment, in order to improve the stability of the real-time voltage acquisition process, the real-time voltage acquisition process is designed to be redundant, that is, an independent first wiring harness and second wiring harness are set in parallel, and the first wiring harness and the second wiring harness respectively acquire the first real-time voltage and the second real-time voltage between the low-voltage battery and the manual switch. Since the low-voltage battery and the manual switch are at equal points, if the first wiring harness and the second wiring harness are connected normally, the first real-time voltage and the second real-time voltage should be the same. If the first real-time voltage is less than the preset voltage threshold, and the second real-time voltage is less than the preset voltage threshold, it indicates that the manual switch has been disconnected, and the driver's seat usage information is obtained to proceed to the next step.

[0033] In this embodiment, if only a single low-voltage collection harness is used to collect real-time voltage, damage or unstable connection of the harness could directly lead to misjudgments in the real-time voltage processing. The redundant design of the first and second harnesses significantly reduces the possibility of misjudgments, improves the reliability of manual switch monitoring, and further enhances the safety of new energy vehicles.

[0034] In this embodiment, the connection method of the first wiring harness and the second wiring harness can be determined according to the structure and actual situation of the new energy vehicle. Preferably, the first end of the first wiring harness is connected to the positive pole of the low-voltage battery, and the second end of the first wiring harness is connected to the controller; the first end of the second wiring harness is connected to the front pole of the manual switch, and the second end of the second wiring harness is connected to the controller.

[0035] In one embodiment, after obtaining the first real-time voltage and the second real-time voltage between the low-voltage battery and the manual switch, a wiring harness abnormality prompt message is generated when the first real-time voltage is less than a preset voltage threshold and the second real-time voltage is greater than or equal to the preset voltage threshold; or, when the first real-time voltage is greater than or equal to the preset voltage threshold and the second real-time voltage is less than the preset voltage threshold, a wiring harness abnormality prompt message is generated; wherein, the wiring harness abnormality prompt message is used to prompt that the first wiring harness or the second wiring harness is abnormally connected.

[0036] In this embodiment, after obtaining the first real-time voltage and the second real-time voltage, if only one of the first real-time voltage or the second real-time voltage is less than the preset voltage threshold, and the other is greater than or equal to the preset voltage threshold, it indicates that there is an abnormality in the connection of the first wiring harness or the second wiring harness, and the wiring harness abnormality prompt information is used to prompt relevant personnel, further improving the reliability of real-time voltage acquisition. Furthermore, when generating the wiring harness abnormality prompt information based on the first real-time voltage and the second real-time voltage, specific information (coding, etc.) of the abnormal wiring harness can be added to facilitate subsequent maintenance by relevant personnel. The controller can transmit the wiring harness abnormality prompt information to the instrument, and the instrument will display the relevant information for subsequent maintenance. For example, when the first real-time voltage is less than the preset voltage threshold, and the second real-time voltage is greater than or equal to the preset voltage threshold, the instrument can display "Low voltage monitoring first wiring harness is broken, please repair immediately" based on the wiring harness abnormality prompt information.

[0037] Step 103 : When the driver's seat usage information indicates that the driver's seat is occupied, generating a switch accidental disconnection prompt message, wherein the switch accidental disconnection prompt message is used to prompt that the manual switch is accidentally disconnected.

[0038] In this embodiment, if the driver's seat usage information indicates that the driver's seat is occupied, this indicates that the driver is still in the driver's seat and has not manually disconnected the manual switch. Therefore, an unexpected disconnection prompt message is generated to indicate that the manual switch has been accidentally disconnected. To ensure vehicle safety, the new energy vehicle can operate normally to avoid sudden stops during driving. Furthermore, since the driver is in the driver's seat and can more easily observe the new energy vehicle's instrument display, the controller can transmit the unexpected disconnection prompt message to the instrument display. The instrument display generates a text message based on the unexpected disconnection prompt message to prompt the driver, allowing the fault to be addressed promptly. For example, the instrument display can display "Constant power disconnection, please check and repair" based on the unexpected disconnection prompt message.

[0039] Step 104 : When the driver seat usage information indicates that the driver seat is not occupied, a switch manual disconnection prompt message is generated, wherein the switch manual disconnection prompt message is used to prompt the user to manually disconnect the switch.

[0040] In this embodiment, if the driver's seat usage information indicates that the driver's seat is not in use, it means that the driver has left the driver's seat and there is no one in the driver's seat, so the manual switch disconnection prompt information is used to prompt the manual switch to be disconnected.

[0041] In one embodiment, when the driver's seat usage information indicates that the driver's seat is not in use, after the switch manual disconnection prompt information is generated, the switch manual disconnection prompt information is transmitted to the instrument of the new energy vehicle, wherein the instrument is used to display the manual switch manual disconnection prompt information based on the switch manual disconnection prompt information; the switch manual disconnection prompt information is transmitted to a sound alarm configured for the new energy vehicle, wherein the sound alarm is used to broadcast the sound prompt information of the manual switch manual disconnection based on the switch manual disconnection prompt information.

[0042] In this embodiment, after the driver manually disconnects the manual switch, there is a possibility that relevant personnel need to repair the new energy vehicle. At this time, the new energy vehicle is still in a high-voltage state, which poses a great safety hazard to the relevant personnel. Since the driver has left the driver's seat, in order to better remind relevant personnel, in addition to the instrument text prompt, an audible alarm is also used to prompt. For example, the instrument displays "Power-off abnormality, please turn off the key in the car" based on the manual disconnection prompt information, and the audible alarm repeatedly broadcasts "The whole vehicle has high voltage, please turn off the key in the car".

[0043] In one embodiment, for further safety, after the switch manual disconnection prompt information is transmitted to the sound alarm configured for the new energy vehicle, it also includes: obtaining the sound alarm duration; when the sound alarm duration reaches a preset duration threshold, based on the switch manual disconnection prompt information, controlling at least one high-voltage component to be powered off in sequence according to a preset order.

[0044] In this embodiment, when the sound broadcast reaches a preset duration threshold, based on the manual disconnection prompt information of the switch, at least one high-voltage component is controlled to be powered off in a preset order. Specifically, the controller disconnects the main positive relay, the Positive Temperature Coefficient (PTC) relay, and the air conditioning relay in sequence, turns off the oil pump enable and the air pump enable, and finally turns off the DCDC relay. At this time, the entire vehicle is powered off, the main negative relay of the Battery Management System (BMS) is automatically disconnected, and the new energy vehicle is powered off, avoiding the risk of high-voltage electric shock to maintenance personnel. Among them, the preset duration threshold is pre-set according to the performance and actual situation of the new energy vehicle.

[0045] In one embodiment, if Figure 2 As shown in the figure, the detailed process of implementing manual switch monitoring with the controller as the execution body is as follows:

[0046] Step 201, the new energy vehicle enters the upper high voltage state;

[0047] Step 202 , obtaining a first real-time voltage V1 and a second real-time voltage V2 , and comparing the first real-time voltage V1 and the second real-time voltage V2 with a preset voltage threshold V0 respectively;

[0048] If the first real-time voltage is greater than or equal to the preset voltage threshold, and the second real-time voltage is greater than or equal to the preset voltage threshold, that is, V1 ≥ V0 and V2 ≥ V0, execute step 203;

[0049] If the first real-time voltage is less than the preset voltage threshold and the second real-time voltage is greater than or equal to the preset voltage threshold, or if the first real-time voltage is greater than or equal to the preset voltage threshold and the second real-time voltage is less than the preset voltage threshold, that is, V1 < V0 and V2 ≥ V0, or V1 ≥ V0 and V2 < V0, execute step 204;

[0050] If the first real-time voltage is less than the preset voltage threshold, and the second real-time voltage is less than the preset voltage threshold, that is, V1 < V0 and V2 < V0, execute step 205;

[0051] Step 203: The new energy vehicle operates normally, and step 202 is executed;

[0052] Step 204: Generate a wiring harness abnormality prompt message and transmit the wiring harness abnormality prompt message to the instrument. The instrument displays "Low voltage monitoring first wiring harness (or second wiring harness) is broken. Please repair immediately." Then, execute step 203.

[0053] Step 205: Obtain driver seat usage information, and determine whether the driver has left the seat based on the driver seat usage information. If not, execute step 206; if so, execute step 207;

[0054] Step 206: Generate a warning message indicating an unexpected disconnection of the switch, and transmit the warning message to the meter. The meter will display "Normal power disconnection, please check and repair", and then execute step 203;

[0055] Step 207: Generate a manual disconnection prompt message and transmit it to the meter and the sound alarm. The meter displays "Power-off abnormality, please turn off the key inside the vehicle" and the sound alarm cyclically broadcasts "Vehicle has high voltage, please turn off the key inside the vehicle". At the same time, the duration of the sound alarm is counted.

[0056] Step 208: When the sound broadcast reaches the preset duration threshold, the main positive relay, PTC relay and air conditioning relay are disconnected in sequence, the oil pump enable and air pump enable are turned off, and finally the DCDC relay is turned off. At this time, the entire vehicle is powered off, the BMS main negative relay is automatically disconnected, and the new energy vehicle is powered off.

[0057] The manual switch monitoring method provided by the present invention obtains the real-time voltage between the low-voltage battery and the manual switch when the new energy vehicle is in the upper high-voltage state, wherein the low-voltage battery is electrically connected to the manual switch; when the real-time voltage is less than a preset voltage threshold, the driver's seat usage information is obtained; when the driver's seat usage information indicates that the driver's seat is used, a switch accidental disconnection prompt message is generated, wherein the switch accidental disconnection prompt message is used to prompt that the manual switch is accidentally disconnected; when the driver's seat usage information indicates that the driver's seat is not used, a switch manual disconnection prompt message is generated, wherein the switch manual disconnection prompt message is used to prompt that the manual switch is manually disconnected. In the above process, when the real-time voltage is less than the preset voltage threshold, it indicates that the manual switch has been disconnected. In order to avoid the risk of high-voltage electric shock, the driver's seat usage information is used to determine whether the manual switch is accidentally disconnected or manually disconnected, thereby generating corresponding prompt information for prompting and ensuring vehicle safety.

[0058] The new energy vehicle provided by the present invention is described below. The new energy vehicle described below and the manual switch monitoring method described above can be referenced to each other.

[0059] In one embodiment, Figure 3 As shown, the new energy vehicle includes a controller, a low-voltage battery, a manual switch, a driver's seat sensor and a low-voltage collection harness; the low-voltage battery is electrically connected to the manual switch, the first end of the low-voltage collection harness is connected to the controller, and the second end of the low-voltage collection harness is connected to the equipotential point of the low-voltage battery and the manual switch; the low-voltage collection harness is used to collect the real-time voltage between the low-voltage battery and the manual switch, and transmit the real-time voltage to the controller; the driver's seat sensor is used to collect driver's seat usage information and transmit the driver's seat usage information to the controller; the controller is used to obtain real-time voltage when the new energy vehicle is in an upper high-voltage state, obtain driver's seat usage information when the real-time voltage is less than a preset voltage threshold, and generate a switch accidental disconnection prompt message when the driver's seat usage information indicates that the driver's seat is used, wherein the switch accidental disconnection prompt message is used to prompt that the manual switch is accidentally disconnected, and generate a switch manual disconnection prompt message when the driver's seat usage information indicates that the driver's seat is not used, wherein the switch manual disconnection prompt message is used to prompt that the manual switch is manually disconnected.

[0060] In one embodiment, the low-voltage collection harness includes a first harness and a second harness, and the first harness and the second harness are independent of each other; the first harness is used to collect a first real-time voltage between the low-voltage battery and the manual switch, and transmit the first real-time voltage to the controller; the second harness is used to collect a second real-time voltage between the low-voltage battery and the manual switch, and transmit the second real-time voltage to the controller; the controller is used to obtain the first real-time voltage and the second real-time voltage, and obtain driver's seat usage information when the first real-time voltage is less than a preset voltage threshold and the second real-time voltage is less than the preset voltage threshold.

[0061] In one embodiment, the new energy vehicle further includes an instrument.

[0062] The controller is used to obtain the first real-time voltage and the second real-time voltage between the low-voltage battery and the manual switch, and generate a wiring harness abnormality prompt information when the first real-time voltage is less than a preset voltage threshold and the second real-time voltage is greater than or equal to the preset voltage threshold; or generate a wiring harness abnormality prompt information when the first real-time voltage is greater than or equal to the preset voltage threshold and the second real-time voltage is less than the preset voltage threshold; and transmit the wiring harness abnormality prompt information to the instrument.

[0063] The instrument is used to display prompt information of abnormal connection of the first wiring harness or the second wiring harness based on the wiring harness abnormality prompt information.

[0064] In one embodiment, the new energy vehicle further includes an instrument and an audible alarm.

[0065] The controller is configured to generate a switch manual disconnection prompt message when the driver's seat usage information indicates that the driver's seat is not occupied, and transmit the switch manual disconnection prompt message to an instrument panel of the new energy vehicle; and transmit the switch manual disconnection prompt message to an audible alarm configured in the new energy vehicle;

[0066] An instrument, for displaying a manual disconnection prompt message of the manual switch based on the manual disconnection prompt message of the switch;

[0067] The sound alarm is used to broadcast the sound prompt information of the manual disconnection of the manual switch based on the manual disconnection prompt information of the switch.

[0068] In one embodiment, the controller is used to transmit the switch manual disconnection prompt information to the sound alarm configured for the new energy vehicle, and then obtain the sound alarm duration; when the sound alarm duration reaches a preset duration threshold, based on the switch manual disconnection prompt information, control at least one high-voltage component to be powered off in sequence according to a preset order.

[0069] In a specific embodiment, Figure 4As shown, preferably, the first end of the first wiring harness is connected to the positive pole of the low-voltage battery, and the second end of the first wiring harness is connected to the controller; the first end of the second wiring harness is connected to the front pole of the manual switch, and the second end of the second wiring harness is connected to the controller.

[0070] More specifically, the low-voltage battery includes battery 1 and battery 2 connected in series. The positive pole of battery 1 is connected to the front pole of the manual switch. The rear pole of the manual switch is connected to the first end of the electromagnetic switch. The second end of the electromagnetic switch is connected to a high-voltage DC power supply (DCDC+), which has been transformed. In addition, the new energy vehicle is also equipped with a charging control relay (K15), a No. 54 fuse (F54) with a rated current of 10A, an external diode with a rated current of 10A, a first diode (D01), a fifth diode (D05), a No. 40 fuse (F40) with a rated current of 10A, a vehicle controller (VCU), an adaptive cruise control system (Adaptive Cruise Control, ACC) relay, an IG1 relay, an IG2 relay, and an ignition lock, etc. Among them, the ignition lock completes the execution of multiple ignition programs such as manual switch closing of new energy vehicles, total thermal power (30+), DCDC+ and vehicle normal power (B+) through multiple ignition signals such as LOCK, ACC, ON, STA, B1, IG1, B2, IG2 and ST.

[0071] The manual switch monitoring device provided by the present invention is described below. The manual switch monitoring device described below and the manual switch monitoring method described above can be referred to in correspondence with each other. Figure 5 As shown, the manual switch monitoring device includes:

[0072] A first acquisition module 501 is configured to acquire a real-time voltage between a low-voltage battery and a manual switch when the new energy vehicle is in an upper high-voltage state, wherein the low-voltage battery is electrically connected to the manual switch;

[0073] The second acquisition module 502 is used to acquire driver seat usage information when the real-time voltage is less than a preset voltage threshold;

[0074] The first processing module 503 is configured to generate a switch accident disconnection prompt message when the driver's seat usage information indicates that the driver's seat is occupied, wherein the switch accident disconnection prompt message is used to prompt that the manual switch is accidentally disconnected;

[0075] The second processing module 504 is configured to generate a manual switch disconnection prompt message when the driver seat usage information indicates that the driver seat is not occupied, wherein the manual switch disconnection prompt message is used to prompt that the manual switch is disconnected.

[0076] In one embodiment, the first acquisition module 501 is configured to acquire a first real-time voltage and a second real-time voltage between the low-voltage battery and the manual switch, wherein the first real-time voltage is acquired by a first wiring harness, and the second real-time voltage is acquired by a second wiring harness, and the first wiring harness and the second wiring harness are independent of each other;

[0077] The second acquisition module 502 is used to acquire the driver's seat usage information when the first real-time voltage is less than the preset voltage threshold and the second real-time voltage is less than the preset voltage threshold.

[0078] In one embodiment, the manual switch monitoring device further includes a third processing module, which is used to obtain the first real-time voltage and the second real-time voltage between the low-voltage battery and the manual switch, and generate a wiring harness abnormality prompt information when the first real-time voltage is less than a preset voltage threshold and the second real-time voltage is greater than or equal to the preset voltage threshold; or generate a wiring harness abnormality prompt information when the first real-time voltage is greater than or equal to the preset voltage threshold and the second real-time voltage is less than the preset voltage threshold; wherein the wiring harness abnormality prompt information is used to indicate that the first wiring harness or the second wiring harness is abnormally connected.

[0079] In one embodiment, the second processing module 504 is used to generate a switch manual disconnection prompt message when the driver's seat usage information indicates that the driver's seat is not in use, and then transmit the switch manual disconnection prompt message to an instrument of the new energy vehicle, wherein the instrument is used to manually disconnect the switch through a text prompt based on the switch manual disconnection prompt message; and transmit the switch manual disconnection prompt message to a sound alarm configured for the new energy vehicle, wherein the sound alarm is used to manually disconnect the switch through a sound prompt based on the switch manual disconnection prompt message.

[0080] In one embodiment, the second processing module 504 is used to obtain the duration of the sound alarm after transmitting the manual disconnection prompt information of the switch to the sound alarm configured for the new energy vehicle; when the sound alarm duration reaches a preset duration threshold, based on the manual disconnection prompt information of the switch, control at least one high-voltage component to be powered off in sequence according to a preset order.

[0081] Figure 6 An example of a physical structure diagram of an electronic device is shown below. Figure 6As shown, the electronic device may include: a processor (processor) 601, a communication interface (Communications Interface) 602, a memory (memory) 603 and a communication bus 604, wherein the processor 601, the communication interface 602, and the memory 603 communicate with each other via the communication bus 604. The processor 601 can call the logic instructions in the memory 603 to execute the manual switch monitoring method, which includes: when the new energy vehicle is in the upper high voltage state, obtaining the real-time voltage between the low-voltage battery and the manual switch, wherein the low-voltage battery is electrically connected to the manual switch; when the real-time voltage is less than a preset voltage threshold, obtaining the driver's seat usage information; when the driver's seat usage information indicates that the driver's seat is used, generating a switch accidental disconnection prompt information, wherein the switch accidental disconnection prompt information is used to prompt that the manual switch is accidentally disconnected; when the driver's seat usage information indicates that the driver's seat is not used, generating a switch manual disconnection prompt information, wherein the switch manual disconnection prompt information is used to prompt that the manual switch is manually disconnected.

[0082] In addition, the logic instructions in the above-mentioned memory 603 can be implemented in the form of a software functional unit and can be stored in a computer-readable storage medium when sold or used as an independent product. Based on this understanding, the technical solution of the present invention, or the part that contributes to the prior art, or the part of the technical solution, can be embodied in the form of a software product. The computer software product is stored in a storage medium and includes several instructions for enabling a computer device (which can be a personal computer, a server, or a network device, etc.) to perform all or part of the steps of the method described in each embodiment of the present invention. The aforementioned storage medium includes: various media that can store program codes, such as a USB flash drive, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk or an optical disk.

[0083] On the other hand, the present invention also provides a computer program product, which includes a computer program stored on a non-transitory computer-readable storage medium, and the computer program includes program instructions. When the program instructions are executed by a computer, the computer can execute the manual switch monitoring method provided by the above-mentioned embodiments, the method including: when the new energy vehicle is in an upper high-voltage state, obtaining the real-time voltage between the low-voltage battery and the manual switch, wherein the low-voltage battery is electrically connected to the manual switch; when the real-time voltage is less than a preset voltage threshold, obtaining the driver's seat usage information; when the driver's seat usage information indicates that the driver's seat is used, generating a switch accidental disconnection prompt information, wherein the switch accidental disconnection prompt information is used to prompt that the manual switch is accidentally disconnected; when the driver's seat usage information indicates that the driver's seat is not used, generating a switch manual disconnection prompt information, wherein the switch manual disconnection prompt information is used to prompt that the manual switch is manually disconnected.

[0084] On the other hand, the present invention also provides a non-transitory computer-readable storage medium having a computer program stored thereon, which, when executed by a processor, implements the manual switch monitoring method provided in the above-mentioned embodiments, the method comprising: when the new energy vehicle is in an upper high-voltage state, obtaining the real-time voltage between the low-voltage battery and the manual switch, wherein the low-voltage battery is electrically connected to the manual switch; when the real-time voltage is less than a preset voltage threshold, obtaining driver's seat usage information; when the driver's seat usage information indicates that the driver's seat is used, generating a switch accidental disconnection prompt information, wherein the switch accidental disconnection prompt information is used to prompt that the manual switch is accidentally disconnected; when the driver's seat usage information indicates that the driver's seat is not used, generating a switch manual disconnection prompt information, wherein the switch manual disconnection prompt information is used to prompt that the manual switch is manually disconnected.

[0085] The device embodiments described above are merely illustrative. The units described as separate components may or may not be physically separate, and the components shown as units may or may not be physical units, i.e., they may be located in one location or distributed across multiple network units. Some or all of the modules may be selected based on actual needs to achieve the objectives of the present embodiment. Persons of ordinary skill in the art will be able to understand and implement the present invention without inventive effort.

[0086] Through the description of the above embodiments, those skilled in the art can clearly understand that each embodiment can be implemented by means of software plus a necessary general hardware platform, or of course, by hardware. Based on this understanding, the essence of the above technical solution or the part that contributes to the existing technology can be embodied in the form of a software product. The computer software product can be stored in a computer-readable storage medium, such as ROM / RAM, a magnetic disk, an optical disk, etc., and includes a number of instructions for enabling a computer device (which can be a personal computer, a server, or a network device, etc.) to execute the methods described in each embodiment or certain parts of the embodiments.

[0087] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the present invention.

Claims

1. A manual switch monitoring method, characterized in that: include: When the new energy vehicle is in a high-voltage state, obtaining a real-time voltage between a low-voltage battery and a manual switch, wherein the low-voltage battery is electrically connected to the manual switch; When the real-time voltage is less than a preset voltage threshold, obtaining driver seat usage information; If the driver's seat usage information indicates that the driver's seat is occupied, generating switch accidental disconnection prompt information, wherein the switch accidental disconnection prompt information is used to prompt that the manual switch is accidentally disconnected; When the driver's seat usage information indicates that no one is using the driver's seat, a switch manual disconnection prompt message is generated, wherein the switch manual disconnection prompt message is used to prompt that the manual switch is manually disconnected.

2. The manual switch monitoring method according to claim 1, characterized in that: The step of obtaining the real-time voltage between the low-voltage battery and the manual switch includes: Acquire a first real-time voltage and a second real-time voltage between the low-voltage battery and the manual switch, wherein the first real-time voltage is acquired by a first wiring harness, and the second real-time voltage is acquired by a second wiring harness, and the first wiring harness and the second wiring harness are independent of each other; When the real-time voltage is less than a preset voltage threshold, obtaining the driver's seat usage information includes: When the first real-time voltage is less than the preset voltage threshold and the second real-time voltage is less than the preset voltage threshold, the driver's seat usage information is obtained.

3. The manual switch monitoring method according to claim 2, characterized in that: After obtaining the first real-time voltage and the second real-time voltage between the low-voltage battery and the manual switch, the method further includes: When the first real-time voltage is less than the preset voltage threshold and the second real-time voltage is greater than or equal to the preset voltage threshold, generating wiring harness abnormality prompt information; Alternatively, when the first real-time voltage is greater than or equal to the preset voltage threshold, and the second real-time voltage is less than the preset voltage threshold, the wiring harness abnormality prompt information is generated; The wiring harness abnormality prompt information is used to prompt that the first wiring harness or the second wiring harness is abnormally connected.

4. The manual switch monitoring method according to claim 1, characterized in that: After generating the switch manual disconnection prompt information when the driver's seat usage information indicates that no one is using the driver's seat, the method further includes: transmitting the manual disconnection prompt information of the switch to an instrument of the new energy vehicle, wherein the instrument is used to display a prompt information of the manual disconnection of the switch based on the manual disconnection prompt information; The switch manual disconnection prompt information is transmitted to a sound alarm configured for the new energy vehicle, wherein the sound alarm is used to broadcast the sound prompt information of the manual switch manual disconnection based on the switch manual disconnection prompt information.

5. The manual switch monitoring method according to claim 4, characterized in that: After transmitting the switch manual disconnection prompt information to the sound alarm configured for the new energy vehicle, the method further includes: Get the duration of the sound alarm; When the duration of the sound alarm reaches a preset duration threshold, based on the manual disconnection prompt information of the switch, at least one high-voltage component is controlled to be powered off in sequence according to a preset order.

6. A new energy vehicle, characterized in that: The new energy vehicle includes a controller, a low-voltage battery, a manual switch, a driver's seat sensor and a low-voltage collection harness; The low-voltage battery is electrically connected to the manual switch, a first end of the low-voltage collection harness is connected to the controller, and a second end of the low-voltage collection harness is connected to an equipotential point between the low-voltage battery and the manual switch; The low-voltage collection harness is used to collect the real-time voltage between the low-voltage battery and the manual switch, and transmit the real-time voltage to the controller; The driver seat sensor is used to collect driver seat usage information and transmit the driver seat usage information to the controller; The controller is used to obtain the real-time voltage when the new energy vehicle is in an upper high-voltage state, and to obtain the driver's seat usage information when the real-time voltage is less than a preset voltage threshold. When the driver's seat usage information indicates that the driver's seat is occupied, the controller generates a switch accidental disconnection prompt message, wherein the switch accidental disconnection prompt message is used to prompt that the manual switch is accidentally disconnected, and when the driver's seat usage information indicates that the driver's seat is not occupied, the controller generates a switch manual disconnection prompt message, wherein the switch manual disconnection prompt message is used to prompt that the manual switch is manually disconnected.

7. The new energy vehicle according to claim 6, characterized in that: The low-voltage collection harness includes a first harness and a second harness, wherein the first harness and the second harness are independent of each other; The first wiring harness is used to collect a first real-time voltage between the low-voltage battery and the manual switch, and transmit the first real-time voltage to the controller; The second wiring harness is used to collect a second real-time voltage between the low-voltage battery and the manual switch, and transmit the second real-time voltage to the controller; The controller is used to obtain the first real-time voltage and the second real-time voltage, and obtain the driver's seat usage information when the first real-time voltage is less than the preset voltage threshold and the second real-time voltage is less than the preset voltage threshold.

8. The new energy vehicle according to claim 7, characterized in that: Also included are instruments; The controller is configured to, after acquiring a first real-time voltage and a second real-time voltage between the low-voltage battery and the manual switch, generate wiring harness abnormality prompt information when the first real-time voltage is less than the preset voltage threshold and the second real-time voltage is greater than or equal to the preset voltage threshold; Alternatively, when the first real-time voltage is greater than or equal to the preset voltage threshold, and the second real-time voltage is less than the preset voltage threshold, the wiring harness abnormality prompt information is generated; transmitting the wiring harness abnormality prompt information to the instrument; The instrument is used to display prompt information of abnormal connection of the first wiring harness or the second wiring harness based on the wiring harness abnormality prompt information.

9. The new energy vehicle according to claim 6, characterized in that: Also included are gauges and an audible alarm; The controller is configured to, when the driver's seat usage information indicates that the driver's seat is unoccupied, generate a switch manual disconnection prompt message, and transmit the switch manual disconnection prompt message to an instrument of the new energy vehicle; and transmit the switch manual disconnection prompt message to an audible alarm configured for the new energy vehicle; The instrument is used to display the prompt information of manual disconnection of the manual switch based on the prompt information of manual disconnection of the switch; The sound alarm is used to broadcast the sound prompt information of the manual switch being manually disconnected based on the switch manual disconnection prompt information.

10. The new energy vehicle according to claim 9, characterized in that: The controller is configured to obtain the duration of the sound alarm after transmitting the manual disconnection prompt information of the switch to the sound alarm configured for the new energy vehicle; When the duration of the sound alarm reaches a preset duration threshold, based on the manual disconnection prompt information of the switch, at least one high-voltage component is controlled to be powered off in sequence according to a preset order.

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