Intelligent key of vehicle and vehicle

Abstract

The utility model discloses an intelligent key of a vehicle and the vehicle. The intelligent key of the vehicle comprises a key body, and the key body is provided with an ECAS indicator light, an ECAS function button and a key function button; the Bluetooth chip is connected with the ECAS indicator light, the ECAS function button and the key function button so as to send trigger signals from the ECAS function button and the key function button to the vehicle end; the detection circuit is connected with the Bluetooth chip so as to wake up the Bluetooth chip when the use of the intelligent key is detected; the power supply is respectively connected with the Bluetooth chip and the detection circuit and is used for supplying power to the Bluetooth chip and the detection circuit, and the Bluetooth chip, the detection circuit and the power supply are arranged in the key body. By adopting the vehicle ECAS control system, the ECAS function of the vehicle can be remotely controlled, the use distance and the area range of the ECAS function are improved, and the control experience of the ECAS function is improved. And when the intelligent key is not used, the Bluetooth chip is dormant, so that the intelligent key has the advantage of low energy consumption.

Description

Technical Field

[0001] The utility model relates to the field of vehicle control, in particular to a smart key of a vehicle and the vehicle. Background Art

[0002] At present, some vehicles, such as buses and trucks, include both PEPS (Passive Entry Passive Start) and ECAS (electronic-controlled air suspension for buses and trucks). The remote control key and ECAS remote controller are two independent devices. The ECAS remote controller is usually placed in the vehicle cab and connected by wires. The operating distance is limited by the length of the wires, which makes the operation inconvenient. In addition, the ECAS remote controller also requires additional investment costs. Summary of the invention

[0003] Based on this, it is necessary to provide a vehicle smart key and vehicle to address the above technical problems, which can remotely control the ECAS function of the vehicle, improve the use distance and area range of the ECAS function, and improve the control experience of the ECAS function. When the smart key is not in use, the Bluetooth chip is dormant, which has the advantage of low energy consumption.

[0004] In a first aspect, a smart key for a vehicle is provided, comprising: a key body, wherein the key body is provided with an ECAS indicator light, an ECAS function button and a key function button;

[0005] A Bluetooth chip, wherein the Bluetooth chip is connected to the ECAS indicator light, the ECAS function button and the key function button to send trigger signals from the ECAS function button and the key function button to the vehicle end;

[0006] A detection circuit, the detection circuit is connected to the Bluetooth chip, so as to wake up the Bluetooth chip when the use of the smart key is detected;

[0007] A power supply, wherein the power supply is connected to the Bluetooth chip and the detection circuit respectively to supply power to the Bluetooth chip and the detection circuit.

[0008] Wherein, the Bluetooth chip, the detection circuit and the power supply are arranged in the key body.

[0009] Furthermore, the detection circuit includes an acceleration sensor, which includes a wake-up port and a communication port. The wake-up port is connected to the wake-up end of the Bluetooth chip to send a wake-up signal to the Bluetooth chip when the movement of the smart key is detected. The communication port communicates with the Bluetooth chip to send data of the acceleration sensor to the Bluetooth chip.

[0010] Furthermore, the communication port of the acceleration sensor communicates with the Bluetooth chip via IIC / SPI.

[0011] Furthermore, it also includes:

[0012] A charging module is connected to the power supply and the Bluetooth chip respectively to charge the power supply under the control of the Bluetooth chip and send status information of the charging module to the Bluetooth chip.

[0013] Furthermore, the charging module includes a wireless charging module and / or a type C and / or micro B interface.

[0014] Furthermore, it also includes:

[0015] An encryption and decryption module is connected to the Bluetooth chip to encrypt or decrypt the communication data between the Bluetooth chip and the vehicle.

[0016] Further, the ECAS function buttons include at least a first user memory mode, an up button, a second user memory mode, a mode selection left button, a stop button, a mode selection right button and a down button.

[0017] Furthermore, the ECAS indicator light includes a front axle indicator light, a rear axle indicator light and a lifting axle indicator light.

[0018] Furthermore, it also includes:

[0019] A sampling circuit is connected to the power supply and the Bluetooth chip respectively to detect the voltage of the power supply and send the voltage to the Bluetooth chip, so that when the voltage is lower than a preset value, the Bluetooth chip sends a low power alarm to the vehicle end.

[0020] In a second aspect, a vehicle is provided, comprising: a smart key for the vehicle according to the first aspect.

[0021] By adopting the embodiment of the utility model, the signal of the ECAS function button can be sent to the ECAS system in a wireless manner, so that the ECAS system controls the air suspension action of the vehicle. The traditional ECAS remote control is replaced by the smart key, and the car remote control key and the ECAS remote control are combined into one, thereby facilitating the operation of the ECAS function, and having the advantage of convenient operation. In addition, the smart key can relatively remotely control the ECAS function of the vehicle through wireless technology, thereby improving the use distance and area range of the ECAS function, and further improving the control experience of the ECAS function. In addition, the detection circuit can detect whether the smart key is used. When it is detected that the smart key is used, the Bluetooth chip is awakened. When the smart key is not used, the Bluetooth chip is dormant. Therefore, the smart key has the advantage of low energy consumption. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Other features, objects and advantages of the present invention will become more apparent by reading the detailed description of non-limiting embodiments made with reference to the following drawings:

[0023] Figure 1 A schematic diagram of a smart key for a vehicle provided by an embodiment of the utility model;

[0024] Figure 2 A schematic diagram of the arrangement of buttons and indicator lights of a smart key according to an embodiment of the utility model;

[0025] Figure 3 A schematic diagram of a smart key for a vehicle provided in another embodiment of the utility model;

[0026] Figure 4 A schematic diagram of the indicator light control principle of a vehicle smart key provided in another embodiment of the utility model. DETAILED DESCRIPTION

[0027] The utility model is further described in detail below in conjunction with the embodiments and drawings. It is understood that the specific embodiments described herein are only used to explain the relevant utility model, rather than to limit the utility model. It is also necessary to explain that, for the convenience of description, only the parts related to the utility model are shown in the drawings.

[0028] It should be noted that, in the absence of conflict, the embodiments of the present invention, that is, the features of the embodiments, can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0029] The following describes in detail a smart key for a vehicle and a vehicle according to an embodiment of the utility model in conjunction with the accompanying drawings.

[0030] Figure 1 FIG. 1 is a schematic diagram of a smart key for a vehicle according to an embodiment of the present utility model. Figure 1 As shown, the smart key of a vehicle according to an embodiment of the utility model includes: a key body ( Figure 1 ), a Bluetooth chip 110, a detection circuit 120 and a power supply 130, wherein:

[0031] The key body is provided with an ECAS indicator light 140, an ECAS function button 150 and a key function button 160. The Bluetooth chip 110 is connected to the ECAS indicator light 140, the ECAS function button 150 and the key function button 160 to send the trigger signal from the ECAS function button 150 and the key function button 160 to the vehicle end. The detection circuit 120 is connected to the Bluetooth chip 110 to wake up the Bluetooth chip 110 when the use of the smart key is detected. The power supply 130 is respectively connected to the Bluetooth chip 110 and the detection circuit 120 to supply power to the Bluetooth chip 110 and the detection circuit 120, wherein the Bluetooth chip 110, the detection circuit 120 and the power supply 130 are arranged in the key body.

[0032] The power source 130 is, for example, a battery.

[0033] In a specific example, the ECAS function buttons 150 include at least a first user memory mode (ie, user memory 1), an up button, a second user memory mode (ie, user memory 2), a mode selection left button, a stop button, a mode selection right button, and a down button.

[0034] Specifically, the vehicle is, for example, a bus or a truck, etc. The vehicle is equipped with a PEPS system (Passive Entry Passive Start) and an ECAS system (electronic-controlled air suspension for buses / trucks).

[0035] like Figure 2 As shown, the smart key is integrated with ECAS remote control buttons. That is, there are multiple buttons on the smart key, such as ECAS function button 150 and key function button 160. Key function button 160 usually refers to the traditional door unlocking, locking, car search button, etc. on the key. ECAS function button 150 may specifically include but is not limited to: user memory 1, up, user memory 2, mode selection left, stop, mode selection right, down, etc. buttons. Corresponding to the prompts of different bridges, the ECAS indicator light 140 may include a front axle indicator light, a rear axle indicator light and a lifting axle indicator light to display the control of the front axle, rear axle and lifting axle. As shown Figure 4 As shown, a circuit schematic diagram of the Bluetooth chip 110 controlling the power and extinguishing of each indicator light is shown.

[0036] like Figure 2 As shown, from left to right and from top to bottom, the multiple buttons on the smart key are: unlock, lock, find car, user memory 1, up, user memory 2, mode selection left, stop, mode selection right, and down button.

[0037] like Figure 1 As shown, the trigger signals of the ECAS function button 150 and the key function button 160 are sent to the Bluetooth chip 110 through the input and output IO ports. The Bluetooth chip 110 controls the ECAS indicator light 140 to turn on and off through the input and output IO ports.

[0038] When the ECAS function button 150 or the key function button 160 on the smart key is triggered, the trigger signal of the ECAS function button 150 or the key function button 160 is transmitted to the Bluetooth chip 110 of the smart key, and the Bluetooth chip 110 wirelessly sends the signal to the controller of the PEPS system on the vehicle through the smart key. The PEPS controller judges the signal. If it is a signal of unlocking, locking, searching for a vehicle, etc., the vehicle is directly controlled to unlock, lock or search for a vehicle; if it is a control signal of the ECAS system, the signal can be sent to the controller of the ECAS system through the CAN network of the vehicle, and the controller of the ECAS system processes it and controls the raising and lowering of the front axle, rear axle, lifting axle, etc. according to the signal.

[0039] like Figure 1 As shown, the detection circuit 120 includes an acceleration sensor, which includes a wake-up port and a communication port. The wake-up port is connected to the wake-up end of the Bluetooth chip 110 to send a wake-up signal to the Bluetooth chip 110 when the movement of the smart key is detected. The communication port communicates with the Bluetooth chip 110 to send data of the acceleration sensor to the Bluetooth chip 110.

[0040] In this example, the communication port of the acceleration sensor communicates with the Bluetooth chip 110 through IIC / SPI, and sends a wake-up signal to the Bluetooth chip 110 through the wake-up input and output IO port. Specifically, the acceleration sensor is mainly used to distinguish whether the smart key is in use. When the smart key is stationary and not in use, the wake-up input and output IO port of the acceleration sensor is low, and the Bluetooth chip 110 will be in a dormant state to achieve the purpose of reducing power consumption. When the smart key is picked up, the acceleration sensor detects it, and then outputs a high level through the wake-up input and output IO port to wake up the Bluetooth chip 110, and the Bluetooth chip 110 enters the working state from the dormant state. In the working state, the Bluetooth chip 110 obtains the data of the acceleration sensor through IIC / SPI.

[0041] According to the smart key of the embodiment of the utility model, the signal of the ECAS function button can be sent to the ECAS system in a wireless manner, so that the ECAS system controls the air suspension action of the vehicle. The smart key replaces the traditional ECAS remote control, and the car remote control key and the ECAS remote control are combined into one, thereby facilitating the operation of the ECAS function, and having the advantage of convenient operation. In addition, the smart key can relatively remotely control the ECAS function of the vehicle through wireless technology, which improves the use distance and area range of the ECAS function, and thus improves the control experience of the ECAS function. In addition, the detection circuit can detect whether the smart key is used. When it is detected that the smart key is in use, the Bluetooth chip is awakened. When the smart key is not in use, the Bluetooth chip is dormant. Therefore, the smart key has the advantage of low energy consumption.

[0042] like Figure 3 As shown, in one embodiment of the utility model, the smart key of the vehicle also includes: a charging module 170, which is respectively connected to the power supply 130 and the Bluetooth chip 110 to charge the power supply 130 under the control of the Bluetooth chip 110 and send status information of the charging module 170 to the Bluetooth chip 110.

[0043] In this example, the charging module includes but is not limited to a wireless charging module and / or a type C and / or micro B interface.

[0044] Specifically, the charging module 170 is responsible for charging the battery. The charging module 170 can be a wireless charging module or a type C / micro B. The status information of the charging module 170 is transmitted to the Bluetooth chip 110 through SPI or IIC, and the Bluetooth chip 110 can control the charging module 170, such as whether to work. In this way, when the power supply of the smart key is insufficient, the charging module 170 can be controlled to charge it, effectively improving the endurance of the smart key.

[0045] Combination Figure 3 As shown, the smart key of the vehicle also includes: an encryption and decryption module 180, which is connected to the Bluetooth chip 110 to encrypt or decrypt the communication data between the Bluetooth chip 110 and the vehicle end. That is, the encryption and decryption module 180 is used to encrypt and decrypt the data sent from the Bluetooth chip 110 to the vehicle end and the data received from the vehicle end, thereby effectively ensuring the security and reliability of the data interaction process between the smart key and the vehicle end.

[0046] The smart key of the vehicle also includes: a sampling circuit, which is connected to the power supply 130 and the Bluetooth chip 110 respectively to detect the voltage of the power supply 130 and send the voltage to the Bluetooth chip 110, so that when the voltage is lower than a preset value, the Bluetooth chip 110 sends a low power alarm to the vehicle end. The sampling circuit is, for example, an AD sampling circuit, which is used to collect the voltage value of the power supply 130 and send the voltage value to the Bluetooth chip 110. For example: the Bluetooth chip judges the voltage of the battery collected by the sampling circuit. When the battery voltage is too low, it indicates that the power is too low. The Bluetooth chip 110 sends a low power alarm to the vehicle end through the antenna so that the user can charge the smart key in time or replace the battery.

[0047] The following is a detailed description of the way in which the smart key of the embodiment of the utility model controls the ECAS system function of the vehicle. For example:

[0048] (1) The PEPS system receives the key signal sent by the smart key.

[0049] The smart key is also called the remote control key. The PEPS system includes a PEPS controller. When a button of the remote control key is pressed, the key signal is sent to the PEPS controller via Bluetooth.

[0050] (2) Identify the signal type of the key signal.

[0051] In one embodiment of the present invention, the identifying the signal type of the key signal includes: obtaining a signal number carried by the key signal; determining the signal type according to the signal number, wherein a plurality of different signal numbers may correspond to the same signal type.

[0052] For example, the signal numbers include 0, 1, 2, 3, 4, 5, 6, 7, 8, and 9. The meanings of these signal numbers are predefined, such as: 0 is a non-ECAS function key (i.e., a signal sent by a traditional key); 1 is for the front axle, 2 is for the rear axle, 3 is for the lifting axle, 4 is for the front axle and the rear axle, 5 is for the front axle and the lifting axle, 6 is for the rear axle and the lifting axle, and 7 is for the front axle, the rear axle, and the lifting axle.

[0053] In this way, the signal type can be determined according to the signal number, for example, if the signal number is 0, it means it is a signal type of a traditional key signal, and if it is any one of 1-9, it means it is a signal type for controlling the ECAS system. In other words, the PEPS controller can determine whether the key signal is an ECAS controller signal according to the signal number.

[0054] (3) When the signal type is an ECAS system control signal, the key signal is sent to the ECAS system, so that the ECAS system controls the air suspension of the vehicle according to the key signal.

[0055] That is to say, when the PEPS controller determines that the key signal is an ECAS controller signal, it sends the key signal to the ECAS system, so that the ECAS system controls the vehicle's air suspension action according to the key signal, such as the ECAS controller selects different bridges for lifting and lowering control according to the received key signal.

[0056] In a specific example, the key signal is sent to the ECAS system so that the ECAS system controls the air suspension action of the vehicle according to the key signal, including: sending the key signal to the ECAS system via a CAN message at a predetermined time period, so that the ECAS system determines the target bridge to be adjusted in the air suspension according to the signal number, and determines the adjustment action of the target bridge according to the key value corresponding to the key signal, so as to control the target bridge to rise or fall according to the adjustment action.

[0057] In this example, before sending the key signal to the ECAS system, the process also includes: obtaining the running state of the vehicle; determining whether an air suspension adjustment condition is met according to the running state of the vehicle; and prohibiting sending the key signal to the ECAS system if the air suspension adjustment condition is not met.

[0058] Specifically, when the mode is selected through the remote control key, the remote control key can record the currently selected mode and flash the indicator light according to the selected mode, but generally speaking, it will not immediately send a signal to the PEPS controller via Bluetooth, thereby reducing communication power consumption as much as possible. Of course, after selecting a mode, such as selecting the front axle mode, it means that the height of the front axle needs to be adjusted. At this time, when the key signal for controlling the lifting is triggered, the remote control key immediately sends a key signal to the PEPS controller.

[0059] In the above description, the ECAS modes of the remote control key include the following: front axle, rear axle, lifting axle, front axle and rear axle, front axle and lifting axle, rear axle and lifting axle, front axle, rear axle and lifting axle.

[0060] In order to improve the service life of the remote control key, after the remote control key triggers an ECAS function key, it can be released immediately without continuously pressing the key. After the PEPS controller receives the ECAS key signal, it sends it to the ECAS controller via a CAN message, for example, at a cycle of 10ms.

[0061] In order to reduce the CAN bus load rate between the PEPS controller and the ECAS controller, the PEPS controller will determine whether the conditions for controlling the ECAS controller to lift the axle are met. For example, if the vehicle is running and the lift axle is not running, the PEPS controller will not send a CAN message to the ECAS controller even if it receives the ECAS function button sent by the remote control key. In this way, the CAN bus load rate between the PEPS controller and the ECAS controller is reduced.

[0062] In one embodiment of the utility model, the smart key of the vehicle further includes: after the ECAS system receives the memory function button sent by the smart key and forwarded by the PEPS system, if the current air suspension position is not recorded, it is recorded, and after receiving the memory function button again, the position of the air suspension is automatically adjusted to the recorded air suspension position.

[0063] Furthermore, it also includes: during the process of adjusting the air suspension, if the position of the air suspension reaches the limit position, the adjustment of the air suspension is automatically stopped, and an alarm message is fed back to the PEPS system so that the PEPS system forwards the alarm message to the smart key to give a prompt through the smart key.

[0064] Specifically, after the user memory button is pressed for a long time with the remote control key, the ECAS controller is responsible for recording the current position information of each bridge. When the user memory button is pressed for a long time with the remote control key, the ECAS controller automatically raises and lowers each bridge to the memory position.

[0065] When the bridge reaches the maximum or minimum height, the ECAS controller controls each bridge to stop automatically and sends an over-limit alarm message to the PEPS controller. The PEPS controller forwards the over-limit alarm message to the remote control key, and the remote control key prompts the user by quickly flashing the ECAS indicator light above.

[0066] According to the smart key of the embodiment of the utility model, the signal of the ECAS function button can be sent to the ECAS system in a wireless manner, so that the ECAS system controls the air suspension action of the vehicle. The smart key replaces the traditional ECAS remote control, and the car remote control key and the ECAS remote control are combined into one, thereby facilitating the operation of the ECAS function, and having the advantage of convenient operation. In addition, the smart key can relatively remotely control the ECAS function of the vehicle through wireless technology, which improves the use distance and area range of the ECAS function, and thus improves the control experience of the ECAS function. In addition, the detection circuit can detect whether the smart key is used. When it is detected that the smart key is in use, the Bluetooth chip is awakened. When the smart key is not in use, the Bluetooth chip is dormant. Therefore, the smart key has the advantage of low energy consumption.

[0067] In one embodiment, a vehicle is provided, comprising: a smart key of the vehicle according to the above embodiment, the vehicle can receive a signal from the ECAS function button sent by the smart key in a wireless manner, so that the ECAS system controls the air suspension action of the vehicle. The smart key replaces the traditional ECAS remote control, and the car remote control key and the ECAS remote control are combined into one, thereby facilitating the operation of the ECAS function, and having the advantage of convenient operation, and the smart key can relatively remotely control the ECAS function of the vehicle through wireless technology, thereby improving the use distance and area range of the ECAS function, and further improving the control experience of the ECAS function. In addition, the detection circuit can detect whether the smart key is used, and when it is detected that the smart key is used, the Bluetooth chip is awakened, and when the smart key is not used, the Bluetooth chip is dormant, so that the smart key has the advantage of low energy consumption.

[0068] In addition, other structures and functions of the vehicle according to the embodiment of the utility model are well known to ordinary technicians in the field and will not be described in detail here.

[0069] Those skilled in the art can understand that all or part of the processes in the methods for implementing the above embodiments can be completed by instructing the relevant hardware through a computer program, and the computer program can be stored in a non-volatile computer-readable storage medium. When the computer program is executed, it can include the processes of the embodiments of the above methods. Among them, any reference to memory, storage, database or other media used in the embodiments provided by the utility model can include at least one of non-volatile and volatile memory. Non-volatile memory can include read-only memory (ROM), magnetic tape, floppy disk, flash memory or optical memory, etc. Volatile memory can include random access memory (RAM) or external cache memory. As an illustration and not limitation, RAM can be in various forms, such as static random access memory (SRAM) or dynamic random access memory (DRAM).

[0070] The technical features of the above embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0071] The above embodiments only express several implementation methods of the utility model, and the descriptions are relatively specific and detailed, but they cannot be understood as limiting the scope of the utility model patent. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, which all belong to the protection scope of the utility model. Therefore, the protection scope of the utility model patent shall be based on the attached claims.

Claims

1. A smart key for a vehicle, characterized in that: include: A key body, wherein the key body is provided with an ECAS indicator light, an ECAS function button and a key function button; A Bluetooth chip, wherein the Bluetooth chip is connected to the ECAS indicator light, the ECAS function button and the key function button to send trigger signals from the ECAS function button and the key function button to the vehicle end; A detection circuit, the detection circuit is connected to the Bluetooth chip, so as to wake up the Bluetooth chip when the use of the smart key is detected; A power supply, wherein the power supply is connected to the Bluetooth chip and the detection circuit respectively to supply power to the Bluetooth chip and the detection circuit. Wherein, the Bluetooth chip, the detection circuit and the power supply are arranged in the key body.

2. The smart key for a vehicle according to claim 1, characterized in that: The detection circuit includes an acceleration sensor, which includes a wake-up port and a communication port. The wake-up port is connected to the wake-up end of the Bluetooth chip to send a wake-up signal to the Bluetooth chip when the movement of the smart key is detected. The communication port communicates with the Bluetooth chip to send data of the acceleration sensor to the Bluetooth chip.

3. The smart key for a vehicle according to claim 2, characterized in that: The communication port of the acceleration sensor communicates with the Bluetooth chip via IIC / SPI.

4. The smart key for a vehicle according to any one of claims 1 to 3, characterized in that: Also includes: A charging module is connected to the power supply and the Bluetooth chip respectively to charge the power supply under the control of the Bluetooth chip and send status information of the charging module to the Bluetooth chip.

5. The smart key for a vehicle according to claim 4, characterized in that: The charging module includes a wireless charging module and / or a type C and / or micro B interface.

6. The smart key for a vehicle according to any one of claims 1 to 3, characterized in that: Also includes: An encryption and decryption module is connected to the Bluetooth chip to encrypt or decrypt the communication data between the Bluetooth chip and the vehicle.

7. The smart key for a vehicle according to claim 1, characterized in that: The ECAS function buttons include at least a first user memory mode, an up button, a second user memory mode, a mode selection left button, a stop button, a mode selection right button and a down button.

8. The smart key for a vehicle according to claim 1, characterized in that: The ECAS indicator lights include a front axle indicator light, a rear axle indicator light and a lifting axle indicator light.

9. The smart key for a vehicle according to claim 1, characterized in that: Also includes: A sampling circuit is connected to the power supply and the Bluetooth chip respectively to detect the voltage of the power supply and send the voltage to the Bluetooth chip, so that when the voltage is lower than a preset value, the Bluetooth chip sends a low power alarm to the vehicle end.

10. A vehicle, characterized in that: include: A smart key for a vehicle according to any one of claims 1 to 9.

Images