阅读说明：本技术 基于can通讯的车载无线充电控制系统及方法 (Vehicle-mounted wireless charging control system and method based on CAN communication ) 是由 高晓萍 王聪 于 2019-11-26 设计创作，主要内容包括：本发明涉及汽车控制技术领域,提供了一种基于CAN通讯的车载无线充电控制系统及方法,该方法具体包括如下步骤：S1、实时从车身控制器BCM处读取主驾门状态及整车钥匙状态,并实时监测车载无线充电模块是否接入充电设备；S2、若整车钥匙处于上非电状态,车载无线充电模块中接入充电设备,且检测到了主驾门的打开信号,则发出充电设备遗忘提醒。充电设备在充电过程中,若出现充电设备遗忘在车内的情况,车辆发出充电设备遗忘提醒,车载无线充电模块自动启动遗忘提醒功能。(The invention relates to the technical field of automobile control, and provides a vehicle-mounted wireless charging control system and method based on CAN communication, wherein the method specifically comprises the following steps: s1, reading a main driving door state and a whole vehicle key state from a BCM (body controller) of the vehicle in real time, and monitoring whether the vehicle-mounted wireless charging module is connected to charging equipment in real time; and S2, if the whole vehicle key is in the non-electricity state, the charging equipment is connected into the vehicle-mounted wireless charging module, and the opening signal of the main driving door is detected, and the forgetting reminding of the charging equipment is sent out. In the charging process of the charging equipment, if the charging equipment is left in the vehicle, the vehicle sends a reminding function of the forgetting of the charging equipment, and the vehicle-mounted wireless charging module automatically starts a reminding function of the forgetting.)

1. The utility model provides an on-vehicle wireless charging control system based on CAN communication, its characterized in that, the system includes:

and the vehicle-mounted wireless charging module is communicated with the BCM and the PEPS module of the vehicle body controller through the CAN bus.

2. The vehicle-mounted wireless charging control method of the vehicle-mounted wireless charging control system based on CAN communication according to claim 1, wherein the method specifically comprises the following steps:

s1, reading a main driving door state and a whole vehicle key state from a BCM (body controller) of the vehicle in real time, and monitoring whether the vehicle-mounted wireless charging module is connected to charging equipment in real time;

and S2, if the whole vehicle key is in a non-powered state, the charging equipment is connected into the vehicle-mounted wireless charging module, and the opening signal of the main driving door is detected, and the forgetting reminding of the charging equipment is sent out.

3. The CAN communication based vehicle-mounted wireless charging control method as claimed in claim 2, wherein when the PEPS module sends out a matching signal, if the vehicle-mounted wireless charging module is in a charging state, the vehicle-mounted wireless charging module suspends charging the charging device, and when the electronic key is successfully matched with the PEPS module, the vehicle-mounted wireless charging module continues to charge the charging device;

the PEPS module sends out a matching signal which is used for matching with a signal sent out by the electronic key, and the PEPS module sends out a signal which is matched successfully.

4. The CAN communication-based vehicle-mounted wireless charging control method according to claim 2, wherein if the vehicle is in a power-on state and the vehicle-mounted wireless charging module is connected to the device to be charged, the vehicle-mounted wireless charging module is in a charging state.

5. The CAN communication-based vehicle-mounted wireless charging control method according to claim 2, wherein when the vehicle-mounted wireless charging module is in a sleep state, if the vehicle-mounted wireless charging detects that the vehicle is in a power-on state and a valid CAN signal exists on a CAN bus, the vehicle-mounted wireless charging module is awakened.

6. The CAN communication-based vehicle-mounted wireless charging control method according to claim 2, wherein when the vehicle-mounted wireless charging module is in the wake-up state, if the entire vehicle is in the power-off state and no valid CAN signal is detected in the CAN bus, the vehicle-mounted wireless charging module enters the sleep state.

7. The CAN communication-based vehicle-mounted wireless charging control method according to claim 2, wherein after the vehicle-mounted wireless charging module sends the set duration for reminding that the charging device is forgotten, if the entire vehicle is in a power-off state and no valid CAN signal is detected in the CAN bus, the vehicle-mounted wireless charging module enters a sleep state.

Technical Field

The invention relates to the technical field of automobile control, and provides a vehicle-mounted wireless charging control system and method based on CAN communication.

Background

The development of the automobile electronic technology can not only meet the requirement of convenience of people in traveling and driving, but also bring more intelligent functions for people on the premise of starting the vehicle to run, and people summarize and develop the humanized intelligent automobile in continuous user experience. The wireless module of charging of on-vehicle cell-phone is different from traditional cell-phone through the mode of charging that connects USB line access vehicle USB interface, the wireless module of charging of on-vehicle cell-phone has special module controller that charges, this technique provides the comfortable convenience that places the cell-phone promptly rechargeable in the car charging area for people, it is inconvenient and forget a great deal of problems such as take the charging wire to have also solved the wiring plug wire in traditional mode of charging simultaneously, but the function of current wireless module of charging is comparatively single, the car owner's of being convenient for operation of charging mostly, it is humanized inadequately to control.

Disclosure of Invention

The invention provides a vehicle-mounted wireless charging control system based on CAN communication, which sends out a prompt aiming at charging equipment forgotten in a vehicle.

In order to achieve the above object, a vehicle-mounted wireless charging control system based on CAN communication, the system comprising:

and the vehicle-mounted wireless charging module is communicated with the BCM and the PEPS module of the vehicle body controller through the CAN bus.

In order to achieve the purpose, the vehicle-mounted wireless charging control method based on CAN communication specifically comprises the following steps:

s1, reading a main driving door state and a whole vehicle key state from a BCM (body controller) of the vehicle in real time, and monitoring whether the vehicle-mounted wireless charging module is connected to charging equipment in real time;

and S2, if the whole vehicle key is in a non-powered state, the charging equipment is connected into the vehicle-mounted wireless charging module, and the opening signal of the main driving door is detected, and the forgetting reminding of the charging equipment is sent out.

Further, when the PEPS module sends out a matching signal, if the vehicle-mounted wireless charging module is in a charging state, the vehicle-mounted wireless charging module suspends charging the charging equipment, and when the electronic key is successfully matched with the PEPS module, the vehicle-mounted wireless charging module continues to charge the charging equipment;

the PEPS module is matched with the electronic key, and the PEPS module sends a signal of successful matching when the matching is successful.

Further, if the vehicle is in a power-on state and the vehicle-mounted wireless charging module is connected to the device to be charged, the vehicle-mounted wireless charging module is in a charging state.

Further, when the vehicle-mounted wireless charging module is in a dormant state, if the vehicle-mounted wireless charging module detects that the vehicle is in a power-on state and an effective CAN signal exists on the CAN bus, the vehicle-mounted wireless charging module is awakened.

Further, when the vehicle-mounted wireless charging module is in an awakening state, if the whole vehicle is in a power-off state and no effective CAN signal is detected in the CAN bus, the vehicle-mounted wireless charging module enters a dormant state.

Further, after the vehicle-mounted wireless charging module sends the set duration that the charging equipment forgets to remind, if the whole vehicle is in a power-off state and an effective CAN signal is not detected in the CAN bus, the vehicle-mounted wireless charging module enters a sleep state.

The vehicle-mounted wireless charging method based on CAN communication provided by the embodiment of the invention has the following beneficial effects:

1) in the charging process of the charging equipment, if the charging equipment is left in the vehicle, the vehicle sends a reminding function of the charging equipment, and the vehicle-mounted wireless charging module automatically starts a reminding function;

2) when the vehicle-mounted wireless charging module is used for charging, if a vehicle owner uses the electronic key to unlock, in order to avoid the interference of the vehicle-mounted wireless charging module on an electronic signal sent by the electronic key, the vehicle-mounted wireless charging module suspends charging in the unlocking process of the electronic key;

3) the state of the vehicle-mounted wireless charging module is automatically controlled based on CAN signals in the network and the state of a key of the whole vehicle, and the state comprises a dormant state and an awakening state.

Drawings

Fig. 1 is a schematic structural diagram of a vehicle-mounted wireless charging system based on CAN communication according to an embodiment of the present invention;

fig. 2 is a flowchart of a vehicle-mounted wireless charging method based on CAN communication according to an embodiment of the present invention.

Detailed Description

The following description of preferred embodiments of the invention will be made in further detail with reference to the accompanying drawings.

Fig. 1 is a schematic structural diagram of a vehicle-mounted wireless charging system based on CAN communication according to an embodiment of the present invention, and for convenience of description, only parts related to the embodiment of the present invention are shown.

The system comprises:

and the vehicle-mounted wireless charging module is communicated with the BCM vehicle-mounted sound equipment large screen and the PEPS module of the vehicle body controller through the CAN bus.

The vehicle-mounted wireless charging module exchanges network signals with the BCM and the PEPS module of the vehicle body controller based on the CAN bus and controls the state of the vehicle-mounted wireless charging module, and the BCM of the vehicle body controller monitors the state of a main driving door and the state of a key of the whole vehicle in real time.

Fig. 2 is a flowchart of a vehicle-mounted wireless charging method based on CAN communication according to an embodiment of the present invention, where the method specifically includes the following steps:

s1, reading a main driving door state and a whole vehicle key state from a BCM (body controller) of the vehicle in real time, and monitoring whether the vehicle-mounted wireless charging module is connected to charging equipment in real time;

and S2, if the whole vehicle key is in the non-electricity state, the charging equipment is connected into the vehicle-mounted wireless charging module, and the opening signal of the main driving door is detected, and the forgetting reminding of the charging equipment is sent out.

In an embodiment of the present invention, the state of the main driving door includes: the main driving door is opened and the main driving door is closed, a main driving door signal DriverDoorSts with a signal value of 0 represents that the main driving door is closed, a signal value of 1 represents that the main driving door is opened, and a key state KeySts of the whole vehicle comprises: a signal value of 0 indicates that the key of the whole vehicle is in an OFF state, a signal value of 1 indicates that the key of the whole vehicle is in an ACC state, a signal value of 2 indicates that the key of the whole vehicle is in an ON state, a signal value of 3 indicates that the key of the whole vehicle is in a CRANK + ON state (an engine ignition state),

when the signal value of the driverdoorSt acquired by the vehicle-mounted wireless charging module is 1, the signal value of the KeySt is not 1, and the signal value of the CWCST3 is 2, and the charging device is accessed into the vehicle-mounted wireless charging module, the reminding of forgetting the charging device is sent.

In the embodiment of the invention, when the PEPS module sends out the matching signal, if the vehicle-mounted wireless charging module is in the charging state, the vehicle-mounted wireless charging module suspends charging the charging equipment, and when the electronic key is successfully matched with the PEPS module, the vehicle-mounted wireless charging module continues to charge the charging equipment.

CAN message name BCM _ 4: BCM _4 is a CAN message sent by a Body Controller (BCM), the ID of the message is 0x392, the BCM is in hard wire connection with an ignition switch of the whole vehicle and a main driving door, the key state of the whole vehicle and the switch state of the main driving door CAN be sent to a CAN bus through CAN signals, and a vehicle-mounted wireless charging Module receives the key state of the whole vehicle, the switch state of the vehicle door and the charging equipment charging state and judges whether to trigger the function of reminding the forgetting of the charging equipment.

The signal PEPS module sent by the controller on the watch car to the wireless charging module of the car-mounted mobile phone sends a matching signal used for matching with a signal to be sent by the electronic key, if the matching is successful, the PEPS module sends a signal of successful matching, namely a CAN message name PEPS _ 2:

the PEPS _2 is a CAN message sent by the PEPS module, the ID of the message is 0x412, in order to avoid electromagnetic interference, a signal is sent in the process that the PEPS module is matched with the electronic key, the vehicle-mounted wireless charging module is informed of stopping charging of the charging equipment, and after the key is matched, the vehicle-mounted wireless charging module is informed of starting the charging function of the charging equipment through the CAN signal.

Signal sent to vehicle-mounted mobile phone wireless charging module by watch two keyless starting keyless entry system

In the embodiment of the invention, if the vehicle is in a power-on state and the vehicle-mounted wireless charging module is connected to the device to be charged, the vehicle-mounted wireless charging module is in a charging state.

In the embodiment of the invention, when the vehicle-mounted wireless charging module is in a dormant state, if the vehicle-mounted wireless charging module detects that the vehicle is in a power-on state and an effective CAN signal exists on the CAN bus, the vehicle-mounted wireless charging module is awakened, wherein the effective CAN signal is a CAN signal with an accurate data format and is an effective CAN signal.

In the embodiment of the invention, when the vehicle-mounted wireless charging module is in the awakening state, if the whole vehicle is in the power-off state and no effective CAN signal is detected in the CAN bus, the vehicle-mounted wireless charging module enters the dormant state.

In the embodiment of the invention, after the vehicle-mounted wireless charging module sends out the set time length of forgetting reminding, if the whole vehicle is in a power-off state and no effective CAN signal is detected in the CAN bus, the vehicle-mounted wireless charging module enters a dormant state.

In an embodiment of the present invention, the charging device may be a mobile phone.

In the embodiment of the present invention, the method for displaying the current state of the vehicle-mounted wireless charging module includes: the charging system comprises a non-charging state (in an awakening state) and a charging state, and is characterized in that the charging device forgetting reminding function is started and closed based on a large vehicle-mounted sound box screen, and the vehicle-mounted wireless charging module is started and closed.

CAN message name CWC _ 1:

the ID of the CWC _1 message is 0x455, the CWC _1 signal is sent to a large vehicle-mounted sound screen to be received, the large vehicle-mounted sound screen can display the working state of a wireless charging module of a vehicle-mounted mobile phone after being received, the charging state of the mobile phone is set, the forgetting reminding function of the charging equipment of the wireless charging module of the vehicle-mounted mobile phone is set to be turned on or turned off, and if the forgetting reminding function of the charging equipment is turned on, the large vehicle-mounted sound screen can drive an alarm buzzer to give an alarm.

Signal sent to sound large screen by watch three vehicle-mounted mobile phone wireless charging module

CAN message name IHU _ 1:

the IHU _1 message ID is 0x4FC, the signal of the IHU _1 is sent to the CWC module to be received, a user can set the charging function of the wireless charging module of the mobile phone to be turned on or turned off through a large-screen soft key of the vehicle-mounted sound, and the wireless charging module of the mobile phone is set to be turned on or turned off according to the forgetting reminding function of the wireless charging module of the mobile phone.

Signal sent to wireless charging module of vehicle-mounted mobile phone by large screen with four sound devices

The vehicle-mounted wireless charging method based on CAN communication provided by the embodiment of the invention has the following beneficial effects:

1) in the charging process of the charging equipment, if the charging equipment is left in the vehicle, the vehicle sends a reminding function of the charging equipment, and the vehicle-mounted wireless charging module automatically starts a reminding function;

2) when the vehicle-mounted wireless charging module is used for charging, if a vehicle owner uses the electronic key to unlock, in order to avoid the interference of the vehicle-mounted wireless charging module on an electronic signal sent by the electronic key, the vehicle-mounted wireless charging module suspends charging in the unlocking process of the electronic key;

3) the state of the vehicle-mounted wireless charging module is automatically controlled based on CAN signals in the network and the state of a key of the whole vehicle, and the state comprises a dormant state and an awakening state.

It is clear that the specific implementation of the invention is not restricted to the above-described embodiments, but that various insubstantial modifications of the inventive process concept and technical solutions are within the scope of protection of the invention.