CN105599676B - A kind of electric vehicle parking instruction alarm system and method for work - Google Patents

A kind of electric vehicle parking instruction alarm system and method for work Download PDF

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Publication number
CN105599676B
CN105599676B CN201610044500.4A CN201610044500A CN105599676B CN 105599676 B CN105599676 B CN 105599676B CN 201610044500 A CN201610044500 A CN 201610044500A CN 105599676 B CN105599676 B CN 105599676B
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China
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driver
vehicle
state
host
microcontroller
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CN201610044500.4A
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CN105599676A (en
Inventor
王钦普
赵佳
冯斌
赵浩
孙国伟
宋朋
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Zhongtong Bus Holding Co Ltd
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Zhongtong Bus Holding Co Ltd
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60QARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
    • B60Q9/00Arrangements or adaptations of signal devices not provided for in one of the preceding main groups, e.g. haptic signalling

Abstract

It stops the invention discloses a kind of electric vehicle and indicates alarm system and method for work, including driver detection device, this state is passed to host by the driver detection device as electronic signals for detecting whether driver is sitting in driver chair;And entire car controller, whether vehicle is judged in wheeled state according to whole vehicle information, and passes through CAN message and vehicle-state is broadcast to the host being connected on network;Host is according to the whole vehicle state and driver status received, according to set control logic driving acousto-optic warning unit work.When driver is when vehicle is in wheeled state and leaves driver chair, host sends apparent sound and light alarm signal, and driver is reminded to close after vehicle launch switch further out effectively avoiding maloperation that vehicle is triggered security incident caused by undesirable movement occur.

Description

A kind of electric vehicle parking instruction alarm system and method for work
Technical field
The present invention relates to electric vehicle alarm fields, and in particular to a kind of electric vehicle parking instruction alarm system and work Method.
Background technology
At present, the scope of electric vehicle mainly covers plug-in hybrid electric automobile and pure electric automobile, both Possess pure electric drive mode, that is, fully rely on electric energy and mechanical energy driving vehicle traveling is converted by driving motor.Electric vehicle Due to no engine, starter is not required to start engine, process and the orthodox car difference for starting vehicle are larger.Traditional vapour Vehicle has apparent starter and pulls the noise of engine operating and apparent Vehicular vibration on startup, and driver is in the car very Easily by judging the two apparent features it is known that whether vehicle is in the state that starts.
Electric vehicle does not possess the two features on startup, whether can only judge vehicle by observing the prompting of instrument In the state started.If driver does not pay attention to observing instrument or is unfamiliar with the start-up course of electric vehicle, in no standard Wrong extension shelves or stepping on accelerator pedal in the case of getting ready are easy to cause vehicle and undesirable movement occur, trigger security incident. When particularly electric vehicle is in " wheeled " state, after driver leaves vehicle, other staff do not pay attention to vehicle shape at this time State, easily step on the accelerator causes security incident by mistake.
Note:" wheeled " state is according to GB/T 18384.2-2001《Electric vehicle safety requirements part 2:Functional safety And emergency protection》4.1st article judges, only in this state, when using accelerator pedal, vehicle can travel.
The content of the invention
To solve the shortcomings of the prior art, stop the invention discloses a kind of electric vehicle and indicate alarm system and work Make method, the system is for solving in the prior art, and when driver leaves the electric vehicle in wheeled state, vehicle can not Effective prompting alarm problem is provided.
To achieve the above object, concrete scheme of the invention is as follows:
A kind of electric vehicle parking instruction alarm system, including driver detection device, the driver detection device is used Whether it is sitting in detection driver on driver chair, and this state is passed into host as electronic signals;
And entire car controller, whether vehicle is judged in wheeled state according to whole vehicle information, and will by CAN message Vehicle-state is broadcast to the host being connected on network;
Host drives acousto-optic warning unit work according to the whole vehicle state and driver status received according to control logic Make.
Further, when whether entire car controller judges vehicle in wheeled state according to whole vehicle information, detection is passed through The working condition of power battery management system BMS and drive motor controller, if power battery management system BMS and driving motor Controller powers on normal and does not report any failure, then illustrates that vehicle is ready, the vehicle READY state that entire car controller is sent Message, if entire car controller sends vehicle READY state message, vehicle is in wheeled state, and otherwise, vehicle, which is in, to stop Only state.
Further, when entire car controller sends vehicle READY state message and driver leaves driver chair, host swashs Acousto-optic warning unit action living.
Further, the host include CAN transceiver, CAN controllers, microcontroller, the CAN transceiver with CAN controllers are connected, and the CAN transceiver is also connected with the CAN network of entire car controller, and CAN transceiver is mainly used for The CAN message signal from entire car controller is received, and passes to CAN controllers;The CAN controllers also with it is micro- Controller is connected, and will pass to microcontroller after the signal acceptance filtenng fault-tolerant processing from CAN transceiver.
Further, the host further includes acousto-optic warning unit and power supply module, the acousto-optic warning unit and micro-control Device processed is connected, and the power supply module is connected respectively with acousto-optic warning unit, microcontroller, CAN controllers, CAN transceiver.
Further, the driver detection device be installed on driver chair pressure sensor, on driver safety band Lock lockup switch or other driver's human bioequivalence devices.
A kind of method of work of electric vehicle parking instruction alarm system, comprises the following steps:
Step (1):Microcontroller detects the vehicle READY state message of entire car controller transmission first, if do not received To READY signal, then power cut-off process;Conversely, then enter step (2);
Step (2):Microcontroller detects the electric signal from driver detection device, and judges driver according to this signal Whether driver chair is left, if driver does not leave driver chair, power cut-off process;Conversely, then enter step (3);
Step (3):Microcontroller driving acousto-optic warning unit work, sends acoustical signal and optical signal double warning effect, Driver is reminded to close after vehicle launch switch further out driver chair, it is ensured that vehicle safety.
Beneficial effects of the present invention:
Electric vehicle parking instruction alarm host machine receives the vehicle running state CAN bus signal from entire car controller, And receive the electric signal from driver detection device.It is main when driver is when vehicle is in wheeled state and leaves driver chair Machine sends apparent sound and light alarm signal, and driver is reminded to close after vehicle launch switch further out effectively maloperation being avoided to draw It dispatches a car a security incident caused by there is undesirable movement.
Description of the drawings
Fig. 1 is the fundamental diagram of the present invention;
Fig. 2 is the work flow diagram of the microcontroller of the present invention.
Specific embodiment:
The present invention is described in detail below in conjunction with the accompanying drawings:
As shown in Figure 1, a kind of electric vehicle parking instruction alarm system, including:Host, driver detection device and vehicle Controller.
Host includes CAN transceiver, CAN controllers, microcontroller, acousto-optic warning unit and power module;It is described CAN transceiver is connected with CAN controllers, and the CAN transceiver is also connected with the CAN network of entire car controller, main to use In CAN message signal of the reception from entire car controller, and pass to CAN controllers;The CAN controllers also with Microcontroller is connected, and will pass to microcontroller after the signal acceptance filtenng fault-tolerant processing from CAN transceiver;The microcontroller Device is also connected with driver detection device, acousto-optic warning unit, comprehensive descision whole vehicle state and driver status, according to set Control logic driving acousto-optic warning unit work;The acousto-optic warning unit is connected with microcontroller, is controlled by microcontroller, tool Standby optical signal and voice signal double warning function;The power module receives the power supply from vehicle and converts voltage class It is system power supply for system required voltage.
Whether driver detection device is sitting on driver chair mainly for detection of driver, and by this state with electric signal Form pass to microcontroller;The device can be by installing pressure sensor, the lock on driver safety band on driver chair It detains lockup switch or is realized by infrared human body sensing device, but be not limited to these three forms.
Whether entire car controller judges vehicle in wheeled state according to whole vehicle information, and passes through CAN message by vehicle State is broadcast to the host being connected on network.
When vehicle is in wheeled state, microcontroller detects that driver leaves driver chair and triggers optical signal harmony immediately Sound signal double warning effect reminds driver to close after vehicle launch switch further out driver chair, it is ensured that vehicle safety.
In the present embodiment, CAN transceiver preferentially selects PCA82C251 chips, and CAN controllers are preferentially selected SJA1000 chips, support is directly connected to microcontroller, for completing whole work(of CAN bus physical layer and data link layer Energy.Microcontroller preferentially selects 80C51 family chips, for handling the data from CAN controllers, and controls independence The working condition of CAN controller.Set control logic is specific following step (1)-step (3).
As shown in Fig. 2, the method for work of the microcontroller of the present invention, including:
Step (1):Microcontroller detects the vehicle READY state message of entire car controller transmission first, if do not received To READY signal, then power cut-off process;Conversely, then enter step (2);
Step (2):Microcontroller detects the electric signal from driver detection device, and judges driver according to this signal Whether driver chair is left, if driver does not leave driver chair, power cut-off process;Conversely, then enter step (3);
Step (3):Microcontroller driving acousto-optic warning unit work, sends acoustical signal and optical signal double warning effect, Driver is reminded to close after vehicle launch switch further out driver chair, it is ensured that vehicle safety.
Above-mentioned, although the foregoing specific embodiments of the present invention is described with reference to the accompanying drawings, not protects model to the present invention The limitation enclosed, those skilled in the art should understand that, based on the technical solutions of the present invention, those skilled in the art are not Need to make the creative labor the various modifications or changes that can be made still within protection scope of the present invention.

Claims (4)

1. a kind of electric vehicle parking instruction alarm system, it is characterized in that, including driver detection device, driver's detection This state is passed to host by device as electronic signals for detecting whether driver is sitting in driver chair;
And entire car controller, whether vehicle is judged in wheeled state according to whole vehicle information, and passes through CAN message by vehicle State is broadcast to the host being connected on network;
Host is according to the whole vehicle state and driver status received, according to control logic driving acousto-optic warning unit work;
When whether the entire car controller judges vehicle in wheeled state according to whole vehicle information, by detecting power battery pipe The working condition of reason system BMS and drive motor controller, if power battery management system BMS and drive motor controller power on Any failure is not reported normally and, then illustrate that vehicle is ready, the vehicle READY state message that entire car controller is sent, if Entire car controller sends vehicle READY state message, then vehicle is in wheeled state, and otherwise, vehicle is in halted state;
When entire car controller sends vehicle READY state message and driver leaves driver chair, host activation sound-light alarm list Metaaction;
The driver detection device is that the lock locking on the pressure sensor or driver safety band installed on driver chair is opened It closes.
2. a kind of electric vehicle parking instruction alarm system as described in claim 1, it is characterized in that, the host includes CAN Transceiver, CAN controllers, microcontroller, the CAN transceiver are connected with CAN controllers, the CAN transceiver Also it is connected with the CAN network of entire car controller, CAN transceiver is mainly used for receiving the CAN message signal from entire car controller, And pass to CAN controllers;The CAN controllers are also connected with microcontroller, by the signal from CAN transceiver Microcontroller is passed to after acceptance filtenng fault-tolerant processing.
3. a kind of electric vehicle parking instruction alarm system as described in claim 1, it is characterized in that, the host further includes sound Light alarm unit and power supply module, the acousto-optic warning unit are connected with microcontroller, the power supply module respectively with acousto-optic report Alert unit, microcontroller, CAN controllers and CAN transceiver are connected.
4. based on a kind of method of work of any electric vehicle parking instruction alarm systems of claim 1-3, feature It is to comprise the following steps:
Step (1):Microcontroller detects the vehicle READY state message of entire car controller transmission first, if do not received READY signal, then power cut-off process;Conversely, then enter step (2);
Step (2):Microcontroller detects the electric signal from driver detection device, and whether judges driver according to this signal Driver chair is left, if driver does not leave driver chair, power cut-off process;Conversely, then enter step (3);
Step (3):Microcontroller driving acousto-optic warning unit work, sends acoustical signal and optical signal double warning effect, reminds Driver is closed after vehicle launch switch further out driver chair, it is ensured that vehicle safety.
CN201610044500.4A 2016-01-22 2016-01-22 A kind of electric vehicle parking instruction alarm system and method for work Active CN105599676B (en)

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Publication number Priority date Publication date Assignee Title
CN108216022A (en) * 2017-12-08 2018-06-29 上海思致汽车工程技术有限公司 A kind of electric vehicle driver leaves warning system
CN111327241A (en) * 2018-12-14 2020-06-23 郑州宇通客车股份有限公司 Motor identification method and vehicle applying same

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CN2033372U (en) * 1988-05-02 1989-03-01 交通部重庆公路科学研究所 Safely warming and automatic-controlling device for braking automobil
CN2441696Y (en) * 2000-10-01 2001-08-08 黄一津 Multifunction hand brake alarm device
CN101226056A (en) * 2007-06-01 2008-07-23 清华大学 Car body obliqueness detection voice alarm device based on CAN bus
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EP2781724A2 (en) * 2013-03-21 2014-09-24 Keihin Corporation Engine control device
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