CN107458233A - A kind of electric automobile low battery based reminding method and system - Google Patents
A kind of electric automobile low battery based reminding method and system Download PDFInfo
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- CN107458233A CN107458233A CN201710622167.5A CN201710622167A CN107458233A CN 107458233 A CN107458233 A CN 107458233A CN 201710622167 A CN201710622167 A CN 201710622167A CN 107458233 A CN107458233 A CN 107458233A
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L3/00—Electric devices on electrically-propelled vehicles for safety purposes; Monitoring operating variables, e.g. speed, deceleration or energy consumption
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60Q—ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
- B60Q9/00—Arrangement or adaptation of signal devices not provided for in one of main groups B60Q1/00 - B60Q7/00, e.g. haptic signalling
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- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The invention provides a kind of electric automobile low battery based reminding method and system, belong to electric vehicle engineering field.This method includes：The information about power of battery charge sensor collection electrokinetic cell is simultaneously sent to message handler；Message handler generates the dump energy ratio of electric quantity signal, wherein electric quantity signal instruction electrokinetic cell according to information about power；Electric quantity signal is sent to display by message handler；The dump energy ratio that display indicates according to electric quantity signal, with dump energy ratio residing for the corresponding alerting pattern of scope reminded.A kind of electric automobile low battery based reminding method provided by the invention and system, can play effective reminding effect when electric quantity of batteries of electric vehicle is relatively low.
Description
Technical field
The present invention relates to electric vehicle engineering field, more particularly to a kind of electric automobile low battery based reminding method and system.
Background technology
At present, under the regulation and control of national policy and oil price it is constantly soaring, new-energy automobile has obtained development at full speed, especially
It is in terms of pure electric automobile and stroke-increasing electric automobile, and major motor corporation all has certain developmental achievement and production
Product.Representative of the electric automobile as new-energy automobile, possess the advantages that economy, energy-saving and environmental protection, but the power resources of electric automobile
There is very big difference with traditional vehicle.Electric automobile is had a great influence using electric power as energy source, the traveling of vehicle by electricity, and
When charging be the guarantee to vehicle continuation of the journey, the prompting to low battery state is just particularly important.
Existing electric automobile, battery dump energy is shown only in instrument or on display.
It can be seen that prior art can not play effective reminding effect when electric quantity of batteries of electric vehicle is relatively low, can make
Ignore low battery state into driver so that battery overdischarge and influence battery capacity and service life, or even travelling
In because electricity exhausts suddenly there is being forced the unsafe condition of parking.
The content of the invention
In view of this, the present invention provides a kind of electric automobile low battery based reminding method and system, can be in batteries of electric automobile
Effective reminding effect is played when electricity is relatively low.
Specifically, including following technical scheme：
On the one hand, the present invention provides a kind of electric automobile low battery based reminding method, including：
The information about power of battery charge sensor collection electrokinetic cell is simultaneously sent to message handler；
Described information processor generates electric quantity signal according to the information about power, wherein electric quantity signal instruction is described dynamic
The dump energy ratio of power battery；
The electric quantity signal is sent to display by described information processor；
The dump energy ratio that the display indicates according to electric quantity signal, with the dump energy ratio residing for scope
Corresponding alerting pattern is reminded.
Selectively, the electric automobile low battery based reminding method, in addition to：
Electric quantity signal is sent to entire car controller by message handler；
The dump energy ratio that entire car controller indicates according to electric quantity signal, with dump energy ratio residing for scope it is relative
The power consumption control mode answered carries out power consumption control.
Selectively, the dump energy ratio that display indicates according to electric quantity signal, with dump energy ratio residing for model
Corresponding alerting pattern is enclosed to be reminded, including：
When the dump energy ratio of electric quantity signal instruction is more than first threshold, the corresponding alerting pattern of display is to make
Battery capacity indication icon shows battery electric quantity according to dump energy ratio；
When the dump energy ratio of electric quantity signal instruction drops to first threshold, the corresponding alerting pattern of display is
Light low battery warning light；
When the dump energy ratio of electric quantity signal instruction drops to Second Threshold, the corresponding alerting pattern of display is
Battery capacity indication icon periodic flicker is reminded, while controls microphone device to send and reminds the setting time section of sound go one；
When the dump energy ratio of electric quantity signal instruction drops to three threshold values, the corresponding alerting pattern of display is to make
Battery capacity indication icon uninterruptedly flashes prompting, while controls microphone device uninterruptedly to send prompting sound.
Selectively, the dump energy ratio that entire car controller indicates according to electric quantity signal, with dump energy ratio institute
Scope corresponding power consumption control mode in place's carries out power consumption control, including：
When the dump energy ratio of electric quantity signal instruction drops to four threshold values, the corresponding use of entire car controller is automatically controlled
Mode processed is limited the power output of brake force battery；
When the dump energy of electric quantity signal instruction drops to five threshold values, the corresponding power consumption control side of entire car controller
Formula is power supply of the cut-out to electric motor of automobile.
Selectively,
The first threshold is 30%；
The Second Threshold is 20%；
3rd threshold value is 10%；
4th threshold value is 30%；
5th threshold value is 10%.
On the other hand, present invention also offers a kind of electric automobile low battery system for prompting, including battery charge sensor,
Message handler and display, wherein,
Battery charge sensor is used to gather the information about power of electrokinetic cell and is sent to message handler；
Described information processor is used to generate electric quantity signal according to the information about power, and the electric quantity signal is sent to
Display, wherein the electric quantity signal indicates the dump energy ratio of the electrokinetic cell；
The display be used for according to electric quantity signal indicate dump energy ratio, with the dump energy ratio residing for
The corresponding alerting pattern of scope is reminded.
Alternatively, in addition to entire car controller, described information processor are additionally operable to the electric quantity signal being sent to vehicle
Controller；
The entire car controller be used for according to electric quantity signal indicate dump energy ratio, with the dump energy ratio
The corresponding power consumption control mode of residing scope carries out power consumption control.
Alternatively, the display is specifically used for：
When the dump energy ratio of electric quantity signal instruction is more than first threshold, the corresponding alerting pattern of the display
To make battery capacity indication icon show battery electric quantity according to the dump energy ratio；
When the dump energy ratio of electric quantity signal instruction drops to first threshold, the corresponding prompting side of the display
Formula is to light low battery warning light；
When the dump energy ratio of electric quantity signal instruction drops to Second Threshold, the corresponding alerting pattern of display is
Indicate that icon periodic flicker is reminded, while control microphone device to send and remind the setting time section of sound go one；
When the dump energy ratio of electric quantity signal instruction drops to three threshold values, the corresponding alerting pattern of the display
To make the battery capacity indication icon uninterruptedly flash prompting, while microphone device is controlled uninterruptedly to send prompting sound.
Alternatively, the entire car controller is specifically used for：
When the dump energy ratio of electric quantity signal instruction drops to four threshold values, the corresponding use of the entire car controller
Electric control mode is to limit the power output of the electrokinetic cell；
When the dump energy of electric quantity signal instruction drops to five threshold values, the corresponding use of the entire car controller is automatically controlled
Mode processed is power supply of the cut-out to electric motor of automobile.
Selectively,
The first threshold is 30%；
The Second Threshold is 20%；
3rd threshold value is 10%；
4th threshold value is 30%；
5th threshold value is 10%.
The beneficial effect of technical scheme provided in an embodiment of the present invention：
Electric automobile low battery based reminding method provided by the invention and system, power electric is gathered by battery charge sensor
The information about power in pond is simultaneously sent to message handler；Message handler generates electric quantity signal according to information about power, and electricity is believed
Number it is sent to the dump energy ratio of display, wherein electric quantity signal instruction electrokinetic cell；Display indicates according to electric quantity signal
Dump energy ratio, with dump energy ratio residing for the corresponding alerting pattern of scope reminded, so as in electronic vapour
Car battery electric quantity plays clear and definite intuitively reminding effect when relatively low, cause attention of the driver to automobile power state, Ji Nengman
Sufficient driver charges in time ensures continuation of the journey, improves travel safety, and and can avoids because battery caused by battery over-discharge holds
Amount decay, so as to provide protection to battery.
Brief description of the drawings
Technical scheme in order to illustrate the embodiments of the present invention more clearly, make required in being described below to embodiment
Accompanying drawing is briefly described, it should be apparent that, drawings in the following description are only some embodiments of the present invention, for
For those of ordinary skill in the art, on the premise of not paying creative work, other can also be obtained according to these accompanying drawings
Accompanying drawing.
Accompanying drawing 1 is the flow chart for the low battery based reminding method that the embodiment of the present invention one provides；
Accompanying drawing 2 is the flow chart for the low battery based reminding method that the embodiment of the present invention two provides；
Accompanying drawing 3 is the block diagram for the low battery system for prompting that the embodiment of the present invention three provides.
Embodiment
To make technical scheme and advantage clearer, embodiment of the present invention is made below in conjunction with accompanying drawing into
One step it is described in detail.
Embodiment one
A kind of electric automobile low battery electric automobile low battery based reminding method is present embodiments provided, as shown in figure 1, including
Step S101, S102, S103 and S104, each step will be specifically introduced below.
In step S101, the information about power of battery charge sensor collection electrokinetic cell is simultaneously sent to message handler.
In step s 102, message handler generates electric quantity signal, wherein electric quantity signal instruction power according to information about power
The dump energy ratio of battery.
In step s 103, electric quantity signal is sent to display by message handler.
In step S104, dump energy ratio that display indicates according to electric quantity signal, with dump energy ratio institute
Scope corresponding alerting pattern in place's is reminded.
As a kind of alternative embodiment, electric automobile low battery electric automobile low battery based reminding method also includes：
Electric quantity signal is sent to entire car controller by message handler；
The dump energy ratio that entire car controller indicates according to electric quantity signal, with dump energy ratio residing for scope it is relative
The power consumption control mode answered carries out power consumption control.
As a kind of alternative embodiment, dump energy ratio that display indicates according to electric quantity signal, with dump energy
The corresponding alerting pattern of scope residing for ratio is reminded, including：
When the dump energy ratio of electric quantity signal instruction is more than first threshold, the corresponding alerting pattern of display is to make
Battery capacity indication icon shows battery electric quantity according to dump energy ratio；
When the dump energy ratio of electric quantity signal instruction drops to first threshold, the corresponding alerting pattern of display is
Light low battery warning light；
When the dump energy ratio of electric quantity signal instruction drops to Second Threshold, the corresponding alerting pattern of display is
Battery capacity indication icon periodic flicker is reminded, while controls microphone device to send and reminds the setting time section of sound go one；
When the dump energy ratio of electric quantity signal instruction drops to three threshold values, the corresponding alerting pattern of display is to make
Battery capacity indication icon uninterruptedly flashes prompting, while controls microphone device uninterruptedly to send prompting sound.
As a kind of alternative embodiment, dump energy ratio that entire car controller indicates according to electric quantity signal, with residue
The corresponding power consumption control mode of scope residing for electricity ratio carries out power consumption control, including：
When the dump energy ratio of electric quantity signal instruction drops to four threshold values, the corresponding use of entire car controller is automatically controlled
Mode processed is limited the power output of brake force battery；
When the dump energy of electric quantity signal instruction drops to five threshold values, the corresponding power consumption control side of entire car controller
Formula is power supply of the cut-out to electric motor of automobile.
As a kind of alternative embodiment, wherein,
First threshold is 30%；
Second Threshold is 20%；
3rd threshold value is 10%；
4th threshold value is 30%；
5th threshold value is 10%.
The electric automobile low battery based reminding method that the embodiment of the present disclosure provides, power electric is gathered by battery charge sensor
The information about power in pond is simultaneously sent to message handler, and message handler generates electric quantity signal according to information about power, and wherein electricity is believed
The dump energy ratio of number instruction electrokinetic cell, electric quantity signal is sent to display by message handler, and display is according to electricity
The dump energy ratio of signal designation, with dump energy ratio residing for the corresponding alerting pattern of scope reminded, so as to
Driver is effectively reminded when electric automobile electricity is low, causes attention of the driver to automobile power state, can
Meet that driver charges in time and ensure continuation of the journey, improve travel safety, and can is avoided because battery caused by battery over-discharge
Capacity attenuation, so as to provide protection to battery.
Above-mentioned all optional technical schemes, any combination can be used to form the alternative embodiment of the present invention, herein no longer
Repeat one by one.
Embodiment two
A kind of electric automobile low battery electric automobile low battery based reminding method is present embodiments provided, as shown in Fig. 2 including
Step S201, S202 and S203, S204, S205, S206.Each step will be specifically introduced below.
Step S201：The information about power of battery charge sensor collection electrokinetic cell is simultaneously sent to message handler.
After battery charge sensor obtains the information about power of the electrokinetic cell on electric automobile, message handler is sent to,
For example, information about power can be sent to message handler by battery charge sensor by controller area network bus.
Before battery charge sensor use, battery charge sensor can be demarcated by experiment, to ensure electricity
The information about power for the battery that pond electrical quantity sensor obtains is accurate.
Information about power should include the information related to the dump energy of electrokinetic cell.
In one case, battery charge sensor only has one, obtains the information about power of whole electrokinetic cell；Another
In the case of kind, battery charge sensor can have multiple, and each battery charge sensor obtains a part for electrokinetic cell (now
Electrokinetic cell is made up of some) information about power, be sent respectively to message handler.
Step S202：Message handler generates electric quantity signal, wherein electric quantity signal instruction electrokinetic cell according to information about power
Dump energy ratio.
Pacify for example, the information about power that battery charge sensor is sent to message handler can be electrokinetic cell current residual
When (ah) number, ampere-hour number divided by the total ampere-hour number of electrokinetic cell draw current power battery dump energy hundred by message handler
Divide ratio, i.e. the dump energy ratio of electrokinetic cell, as the electric quantity signal to be exported.Message handler can pass through controller local
Electric quantity signal is sent to display by net CAN.
In the case of an only battery sensor, the information about power at this moment sent by the battery sensor can be straight
Connect to obtain current power battery dump energy percentage, it is possible to export as electric quantity signal；Sensed there are multiple battery electric quantities
In the case of device, message handler is just needed after multiple information about power are merged into calculating, obtains current power battery altogether
Residual power percentage, as electric quantity signal export.
For example, message handler can be battery management system BMS (Battery Management System).
Step S203：Electric quantity signal is sent to display by message handler.
Specifically, electric quantity signal can be sent to display by message handler by controller area network bus.
Step S204：The dump energy ratio that display indicates according to electric quantity signal, with dump energy ratio residing for model
Corresponding alerting pattern is enclosed to be reminded.
After the electric quantity signal that display receive information processor is sent, it is possible to obtain current power battery dump energy ratio
Example, and low battery prompting is carried out according to dump energy ratio.
For example, when the dump energy ratio of electric quantity signal instruction is more than first threshold, the corresponding prompting side of display
Formula can be battery capacity indication icon is shown battery dump energy according to dump energy ratio, and first threshold for example can be 30%.
In vehicle travel process, dump energy reduction more gradual than regular meeting, when the dump energy ratio of electric quantity signal instruction
When dropping to first threshold, the corresponding alerting pattern of display is to light low battery warning light.
After continuing traveling, when the dump energy ratio of electric quantity signal instruction drops to Second Threshold, display is corresponding
Alerting pattern for make battery capacity indication icon periodic flicker remind, while control microphone device send remind sound go one set
Fix time section, Second Threshold for example can be 20%.
Alternatively, the color of low battery warning light in this step, indicate the frequency of icon periodic flicker, remind sound
Type, phonation time section, it can be configured over the display by user.
When the dump energy ratio of electric quantity signal instruction drops to three threshold values, the corresponding alerting pattern of display is to make
Battery capacity indication icon uninterruptedly flashes prompting, while controls microphone device uninterruptedly to send prompting sound, and the 3rd threshold value for example may be used
Think 10%.
Alternatively, after driver notices that battery electric quantity is relatively low, display can also be clicked at any time by the prompting sound
Reduce, to avoid larger sound from producing unnecessary interference to the driver behavior of driver.
In this step, microphone device can integrate in the display, can also by vehicle sound loudspeaker directly as
Sound-generating element, it is defined in the present invention not to this.
Step S205：Electric quantity signal is sent to entire car controller by message handler.
For example, electric quantity signal can be sent to entire car controller by message handler by controller area network bus.
Step S206：Entire car controller can also according to electric quantity signal indicate dump energy ratio, with dump energy
The corresponding power consumption control mode of scope residing for ratio carries out power consumption control.
For example, when the dump energy ratio of electric quantity signal instruction drops to four threshold values, entire car controller is corresponding
Power consumption control mode is limited the power output of brake force battery, and the 4th threshold value for example can be 30%.
A kind of limitation mode can set a higher limit to the output current of electrokinetic cell, and no matter how driver steps on
Electric switch, the output current of electrokinetic cell can not all exceed the higher limit, so as to limit the power output of electrokinetic cell；Can also be
Electric switch sensitivity is reduced, that is, increases electric switch and steps on the ratio between angle and corresponding electrokinetic cell output current, so that driver steps on
During lower equal angular electric switch, electrokinetic cell power output during electricity abundance than reducing, so as to limit the power output of electrokinetic cell.
When the dump energy of electric quantity signal instruction drops to five threshold values, the corresponding power consumption control side of entire car controller
Formula is power supply of the cut-out to electric motor of automobile, and the 5th threshold value for example can be 10%.
Specifically, entire car controller only cuts off the power supply of motor, that is, has interrupted power output, but does not cut off other cars
The power supply of inner electronic equipment so that, can be with normally-open hydropac lamp, to remind rear car to pay attention to pacifying after vehicle sliding stops
Entirely；Lock and elevating glass can also be normally opened and closed, to ensure that occupant will not be stranded.
The electric automobile low battery based reminding method that the embodiment of the present disclosure provides, power electric is gathered by battery charge sensor
The information about power in pond is simultaneously sent to message handler, and message handler generates electric quantity signal according to information about power, and wherein electricity is believed
The dump energy ratio of number instruction electrokinetic cell, electric quantity signal is sent to display or entire car controller by message handler,
The dump energy ratio that display indicates according to electric quantity signal, with dump energy ratio residing for the corresponding alerting pattern of scope
Reminded, the dump energy ratio that entire car controller indicates according to electric quantity signal, with dump energy ratio residing for scope phase
Corresponding control mode carries out power consumption control, so as to effectively be reminded driver when electric automobile electricity is low, causes
Attention of the driver to automobile power state, necessary control is carried out to vehicle in low battery, facilitate driver to be lifted and perceive
Degree；It can meet that driver charges in time and ensure continuation of the journey, improve travel safety, and can avoids because battery over-discharge causes
Battery capacity decay, so as to battery provide protection.
Embodiment three
A kind of electric automobile low battery system for prompting is present embodiments provided, as shown in figure 3, including battery charge sensor
301st, message handler 302, display 303 and entire car controller 304, will be made below specifically introducing.
Battery charge sensor 301 is used to gather the information about power of electrokinetic cell and is sent to message handler 302；
After battery charge sensor 301 obtains the information about power of the electrokinetic cell on electric automobile, information processing is sent to
Information about power can be sent at information by device 302, specifically, battery charge sensor 301 by controller area network bus
Manage device 302.
Before the use of battery charge sensor 301, battery charge sensor 301 can be demarcated by experiment, with
Ensure that the information about power for the battery that battery charge sensor 301 obtains is accurate.
Information about power should include the information related to the dump energy of electrokinetic cell.
Message handler 302 is used to generate electric quantity signal according to information about power, and electric quantity signal is sent into display
303, wherein the dump energy ratio of electric quantity signal instruction electrokinetic cell.
Currently remained for example, the information about power that battery charge sensor 301 is sent to message handler 302 can be electrokinetic cell
Ampere-hour number divided by the total ampere-hour number of electrokinetic cell are drawn current power remaining battery by remaining ampere-hour (ah) number, message handler 302
The dump energy ratio of electricity percentage, i.e. electrokinetic cell, as the electric quantity signal to be exported.Message handler 302 can pass through
Electric quantity signal is sent to display 303 by controller area network bus.
Alternatively, message handler 302 can be battery management system BMS (Battery Management System).
Display 303 be used for according to electric quantity signal indicate dump energy ratio, with dump energy ratio residing for scope
Corresponding alerting pattern is reminded.
For example, when the dump energy ratio of electric quantity signal instruction is more than first threshold, the corresponding prompting of display 303
Mode can be battery capacity indication icon is shown battery electric quantity according to dump energy ratio, and first threshold for example can be 30%.
In vehicle travel process, dump energy reduction more gradual than regular meeting, when the dump energy ratio of electric quantity signal instruction
When dropping to first threshold, the corresponding alerting pattern of display 303 is to light low battery warning light.
After continuing traveling, when the dump energy ratio of electric quantity signal instruction drops to Second Threshold, display 303 is relative
The alerting pattern answered controls microphone device to send and reminds sound go one to remind battery capacity indication icon periodic flicker
Setting time section, Second Threshold for example can be 20%.
When the dump energy ratio of electric quantity signal instruction drops to three threshold values, the corresponding alerting pattern of display is to make
Battery capacity indication icon uninterruptedly flashes prompting, while controls microphone device uninterruptedly to send prompting sound, and the 3rd threshold value for example may be used
Think 10%.
In the present system, microphone device can integrate in the display, can also by vehicle sound loudspeaker directly as
Sound-generating element, it is defined in the present invention not to this.
Message handler 302 is additionally operable to electric quantity signal being sent to entire car controller 304.
For example, electric quantity signal can be sent to entire car controller by message handler 302 by controller area network bus
304。
Entire car controller 304 be used for can according to electric quantity signal indicate dump energy ratio, with dump energy ratio
The corresponding power consumption control mode of residing scope carries out power consumption control.
For example, when the dump energy ratio of electric quantity signal instruction drops to four threshold values, entire car controller 304 is corresponding
Power consumption control mode can be limited the power output of brake force battery, the 4th threshold value for example can be 30%.
When the dump energy of electric quantity signal instruction drops to five threshold values, the corresponding use of entire car controller 304 is automatically controlled
Mode processed is power supply of the cut-out to electric motor of automobile, and the 5th threshold value for example can be 10%.
The present embodiment is based on identical inventive concept with embodiment two, is that system corresponding with embodiment of the method two-phase is implemented
Example, therefore it should be appreciated by those skilled in the art that being similarly adapted to the present embodiment to the explanation of embodiment two, some technologies are thin
Section is no longer described in detail in the present embodiment.
The electric automobile low battery system for prompting that the embodiment of the present disclosure provides, power electric is gathered by battery charge sensor
The information about power in pond is simultaneously sent to message handler, and message handler generates electric quantity signal according to information about power, and wherein electricity is believed
The dump energy ratio of number instruction electrokinetic cell, electric quantity signal is sent to display or entire car controller by message handler,
The dump energy ratio that display indicates according to electric quantity signal, with dump energy ratio residing for the corresponding alerting pattern of scope
Reminded, the dump energy ratio that entire car controller indicates according to electric quantity signal, with dump energy ratio residing for scope phase
Corresponding control mode carries out power consumption control, so as to effectively be reminded driver when electric automobile electricity is low, causes and drives
Attention of the person of sailing to automobile power state, driver is facilitated to lift perceptibility；Necessary control is carried out to vehicle in low battery,
It can meet that driver charges in time and ensure continuation of the journey, improve travel safety, and can is avoided because caused by battery over-discharge
Battery capacity decays, so as to provide protection to battery.
It is described above to be for only for ease of it will be understood by those skilled in the art that technical scheme, not limiting
The present invention.Within the spirit and principles of the invention, any modification, equivalent substitution and improvements made etc., it should be included in this
The protection domain of invention.
Claims (10)
- A kind of 1. electric automobile low battery based reminding method, it is characterised in that including：The information about power of battery charge sensor collection electrokinetic cell is simultaneously sent to message handler；Described information processor generates electric quantity signal according to the information about power, wherein the electric quantity signal indicates the power electric The dump energy ratio in pond；The electric quantity signal is sent to display by described information processor；The dump energy ratio that the display indicates according to electric quantity signal, with the dump energy ratio residing for scope it is relative The alerting pattern answered is reminded.
- 2. according to the method for claim 1, it is characterised in that methods described also includes：The electric quantity signal is also sent to entire car controller by described information processor；The dump energy ratio that the entire car controller indicates according to electric quantity signal, with the dump energy ratio residing for scope Corresponding power consumption control mode carries out power consumption control.
- 3. according to the method for claim 1, it is characterised in that the dump energy that the display indicates according to electric quantity signal Ratio, with the dump energy ratio residing for the corresponding alerting pattern of scope reminded, including：When the dump energy ratio of electric quantity signal instruction is more than first threshold, the corresponding alerting pattern of the display is to make Battery capacity indication icon shows battery electric quantity according to the dump energy ratio；When the dump energy ratio of electric quantity signal instruction drops to first threshold, the corresponding alerting pattern of the display is Light low battery warning light；When the dump energy ratio of electric quantity signal instruction drops to Second Threshold, the corresponding alerting pattern of the display is The battery capacity indication icon periodic flicker is reminded, while controls microphone device to send and reminds the setting time of sound go one Section；When the dump energy ratio of electric quantity signal instruction drops to three threshold values, the corresponding alerting pattern of the display is to make The battery capacity indication icon uninterruptedly flashes prompting, while controls microphone device uninterruptedly to send prompting sound.
- 4. according to the method for claim 2, it is characterised in that the residue that the entire car controller indicates according to electric quantity signal Electricity ratio, by with the dump energy ratio residing for carry out power consumption control in a manner of the corresponding power consumption control of scope, including：When the dump energy ratio of electric quantity signal instruction drops to four threshold values, the corresponding use of the entire car controller is automatically controlled Mode processed is to limit the power output of the electrokinetic cell；When the dump energy of electric quantity signal instruction drops to five threshold values, the corresponding power consumption control side of the entire car controller Formula is power supply of the cut-out to electric motor of automobile.
- 5. the method according to claim 3 or 4, it is characterised in thatThe first threshold is 30%；The Second Threshold is 20%；3rd threshold value is 10%；4th threshold value is 30%；5th threshold value is 10%.
- 6. a kind of electric automobile low battery system for prompting, it is characterised in that including battery charge sensor, message handler and show Show device, wherein,Battery charge sensor is used to gather the information about power of electrokinetic cell and is sent to message handler；Described information processor is used to generate electric quantity signal according to the information about power, and the electric quantity signal is sent into display Device, wherein the electric quantity signal indicates the dump energy ratio of the electrokinetic cell；The display be used for according to electric quantity signal indicate dump energy ratio, with the dump energy ratio residing for scope Corresponding alerting pattern is reminded.
- 7. system according to claim 6, it is characterised in that also also used including entire car controller, described information processor In the electric quantity signal is sent into the entire car controller；The entire car controller be used for according to electric quantity signal indicate dump energy ratio, with the dump energy ratio residing for The corresponding power consumption control mode of scope carries out power consumption control.
- 8. system according to claim 6, it is characterised in that the display is specifically used for：When the dump energy ratio of electric quantity signal instruction is more than first threshold, the corresponding alerting pattern of the display is to make Battery capacity indication icon shows battery electric quantity according to the dump energy ratio；When the dump energy ratio of electric quantity signal instruction drops to first threshold, the corresponding alerting pattern of the display is Light low battery warning light；When the dump energy ratio of electric quantity signal instruction drops to Second Threshold, the corresponding alerting pattern of display is instruction Icon periodic flicker is reminded, while is controlled microphone device to send and reminded the setting time section of sound go one；When the dump energy ratio of electric quantity signal instruction drops to three threshold values, the corresponding alerting pattern of the display is to make The battery capacity indication icon uninterruptedly flashes prompting, while controls microphone device uninterruptedly to send prompting sound.
- 9. system according to claim 7, it is characterised in that the entire car controller is specifically used for：When the dump energy ratio of electric quantity signal instruction drops to four threshold values, the corresponding use of the entire car controller is automatically controlled Mode processed is to limit the power output of the electrokinetic cell；When the dump energy of electric quantity signal instruction drops to five threshold values, the corresponding power consumption control side of the entire car controller Formula is power supply of the cut-out to electric motor of automobile.
- 10. device according to claim 8 or claim 9, it is characterised in thatThe first threshold is 30%；The Second Threshold is 20%；3rd threshold value is 10%；4th threshold value is 30%；5th threshold value is 10%.
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