CN203780463U - Vehicle power supply auxiliary device - Google Patents
Vehicle power supply auxiliary device Download PDFInfo
- Publication number
- CN203780463U CN203780463U CN201420027304.2U CN201420027304U CN203780463U CN 203780463 U CN203780463 U CN 203780463U CN 201420027304 U CN201420027304 U CN 201420027304U CN 203780463 U CN203780463 U CN 203780463U
- Authority
- CN
- China
- Prior art keywords
- vehicle
- power supply
- main control
- control unit
- voltage value
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Landscapes
- Electric Propulsion And Braking For Vehicles (AREA)
Abstract
The utility model relates to an auxiliary device for a vehicle power supply system, in particular to a vehicle power supply auxiliary device, which comprises a main control unit, a voltage detection module, a basic voltage storage module and a charging and discharging power supply unit, wherein the charging and discharging power supply unit is connected in parallel with the storage battery, when the real-time voltage value is not smaller than the basic voltage value, the main control unit is used for control, and the vehicle power supply system is used for charging the charging and discharging power supply unit; when the real-time voltage value is smaller than the basic voltage value, the main control unit is used for controlling the charging and discharging power supply unit for realizing the discharging on the vehicle power supply system. When the technical scheme of the vehicle power supply auxiliary device is adopted, the performance of the vehicle power supply system is improved, so the power supply output voltage and the current maintain the relative constant state, the momentary discharging capability of the power supply system is improved, the motive power output is increased, the service life of the battery is prolonged, the starting time of an automobile engine is shortened, and the ignition efficiency and the vehicle operation and control performance are improved.
Description
Technical field
The utility model relates to a kind of device that aids in vehicle electric power system, relates in particular to a kind of vehicle power supply auxiliary device.
Background technology
The electric power system of existing automobile, mainly formed by alternating current generator, rectifier bridge and the storage battery of powering to vehicle, due to the complexity of vehicle operational mode, through automobile current generator rectification direct current (DC) later, electric current, voltage are all the time in fluctuation status, especially vehicle load changes greatly time moment, and electric current, voltage decline abruptly amplitude are larger.Existing vehicle electric power system is owing to being subject to the restriction of capacity of generator and output characteristic, within the utmost point short time, can not produce needed large electric current, at this moment needed large electric current is mainly supplemented by storage battery, but because changing chemical power into electric energy, storage battery needs the regular hour, and accumulator internal resistance is higher, so can not compensate for vehicle provides sufficient electric energy moment, vehicle load changes more greatly, its lag time is just longer, and then there is electricity shortage, vehicle power unit work efficiency is declined, cause engine combustion efficiency to reduce, vehicle power is lost, handling reduces, fuel oil consumption increases.
Utility model content
For solving the deficiencies in the prior art, the utility model provides a kind of vehicle power supply auxiliary device that transient current offset can be provided for vehicle electric power system, it can actv. ensures the electric power supply of vehicle, improve the work efficiency of vehicle electric power system, in meeting the power demands of vehicle power unit, realize the lifting of Integral automobile performance.
For achieving the above object, vehicle power supply auxiliary device of the present utility model, comprises main control unit, also comprises:
Voltage detection module, detects the real-time voltage value of vehicle electric power system, and the data of detection is passed to main control unit;
Basic voltage memory module, is connected with main control unit, stores basic voltage value;
Discharge and recharge power supply unit, in parallel with storage battery, in the time that real-time voltage value is not less than basic voltage value, charged for discharging and recharging power supply unit by vehicle electric power system by main control unit control; In the time that real-time voltage value is less than basic voltage value, discharges and recharges power supply unit by main control unit control vehicle electric power system is discharged.
As the improvement to aforesaid way, also comprise the travel condition of vehicle detecting unit that travel condition of vehicle is detected being connected with main control unit; Described travel condition of vehicle detecting unit comprises the engine speed detection module that engine speed is detected; Described discharge and recharge power supply unit comprise in parallel with storage battery, and first electric capacity, second electric capacity and three electric capacity that arrange interval corresponding to low engine speed interval, middle engine speed interval and high-engine rotating speed.
As the improvement to aforesaid way, described travel condition of vehicle detecting unit comprises the speed of a motor vehicle detection module that the speed of a motor vehicle is detected; The described power supply auxiliary unit that discharges and recharges comprises the starting electric capacity in parallel with storage battery.
As the improvement to aforesaid way, also comprise the pulsewidth memory module that stores benchmark fuel injection pulsewidth and benchmark fuel injection pulsewidth rate of change being connected with main control unit; Described travel condition of vehicle detecting unit comprises the pulse width detection module that fuel injection pulsewidth is detected, and the described power supply auxiliary unit that discharges and recharges comprises the anxious speed-up capacitor in parallel with storage battery.
Adopt the technical solution of the utility model, its effect is as follows:
1, discharge and recharge power supply unit by setting up, in the time that the electric power system real-time voltage value of vehicle is greater than basic voltage value, charged to discharging and recharging power supply unit by vehicle electric power system, and in the time that vehicle electric power system real-time voltage value is less than basic voltage value, by discharging and recharging power supply unit, vehicle electric power system is discharged, to make up the electricity shortage when uprushing large electric current demand of vehicle electric power system now, avoid battery tension moment to fall, improved the tractive performance of vehicle and the work efficiency of power unit;
2, be set to the first electric capacity, the second electric capacity, the 3rd electric capacity by discharging and recharging power supply unit, because driving engine is inconsistent in the voltage fluctuation frequency in different rotating speed intervals, make engine speed interval corresponding to each electric capacity, set up travel condition of vehicle detecting unit simultaneously, so that vehicle is in the time of different engine speeds, main control unit is controlled according to the engine speed of current vehicle-state the electric capacity that this rotating speed is corresponding and is discharged, and has improved the promptness of charge/discharge unit response;
3, due to when the vehicle start, vehicle electric power system voltage drop range is larger, the corresponding capacitive strike of simple use engine speed, the demand of vehicle cannot meet this state time, therefore, set up starting electric capacity by discharging and recharging power supply unit, set up speed of a motor vehicle detection module simultaneously, in the time that the speed of a motor vehicle detecting according to speed of a motor vehicle detection module judges vehicle in starting state, discharged to power unit by electric capacity and starting electric capacity that under main control unit control current state, engine speed is corresponding simultaneously, can improve discharge efficiency, ensure vehicle need for electricity, lifting vehicle starting acceleration performance.
4, in like manner, because vehicle is under anxious acceleration mode, vehicle electric power system voltage drop range is larger equally, set up anxious speed-up capacitor by discharging and recharging power supply unit, set up pulse width detection module and pulsewidth memory module simultaneously, main control unit is to the capable detection of the fuel injection pulsewidth under vehicle current state, to obtain fuel injection pulsewidth rate of change, if this fuel injection pulsewidth and fuel injection pulsewidth are all greater than benchmark fuel injection pulsewidth and benchmark fuel injection pulsewidth rate of change in pulsewidth memory module, judge that vehicle is in anxious acceleration mode, now, main control unit carries out current compensation vehicle electric power system in electric capacity corresponding to the engine speed of this state except controlling vehicle, control anxious speed-up capacitor simultaneously and carry out current compensation to vehicle electric power system, improve overall discharge efficiency, ensure vehicle need for electricity, improve the stability that vehicle accelerates row energy and travel condition of vehicle.
5,, on to the charging control of anxious speed-up capacitor or starting electric capacity, being chosen in the car retardation stage charges to it, can not produce any impact to the work efficiency of driving engine.
In sum, adopt the technical solution of the utility model, improve vehicle electric power system performance, make to power output voltage, electric current keeps relatively constant, improve the ability that sparks of power-supply system, increase power output, extend battery, shorten the auto activation engine time, improve ignition effectiveness and vehicle performance performance.
brief description of the drawings
Below in conjunction with the drawings and the specific embodiments, the utility model is done further to describe in detail:
Fig. 1 is that the integral structure of the utility model embodiment while using connects block diagram;
In figure:
1, main control unit; 2, electrical generator; 3, power unit; 4, storage battery; 5, voltage detection module; 6, basic voltage memory module; 7, travel condition of vehicle detecting unit; 71, engine speed detection module; 72, speed of a motor vehicle detection module; 73, pulse width detection module; 8, pulsewidth memory module; 9, discharge and recharge power supply unit; 91, the first electric capacity; 92, the second electric capacity; 93, the 3rd electric capacity; 94, starting electric capacity; 95, anxious speed-up capacitor.
Detailed description of the invention
Embodiment
The present embodiment relates to a kind of Vehicular power management system, and it is applied in existing vehicle electric power system, and as shown in Figure 1, existing vehicle electric power system comprises electrical generator 2, and the power unit 3 to vehicle being connected with electrical generator 2 storage battery 4 of powering; The Vehicular power management system of the present embodiment comprises main control unit 1, voltage detection module 5, voltage detection module 5 adopts voltage sensor, it detects vehicle electric power system real-time voltage value, it can be that the output voltage of electrical generator 2 is detected, also can detect the output voltage of storage battery 4, the real-time voltage value being detected by voltage detection module 5 is passed to main control unit 1; On main control unit 1, be also connected with basic voltage memory module 6, be stored with the basic voltage value of setting, meanwhile, on main control unit 1, be connected with the pulsewidth memory module 8 that stores benchmark fuel injection pulsewidth and benchmark fuel injection pulsewidth rate of change.
In addition,, in the present embodiment, also comprise the travel condition of vehicle detecting unit 7 that travel condition of vehicle is detected being connected with main control unit 1; This travel condition of vehicle detecting unit 7 comprises the engine speed detection module 71 that engine speed is detected, that the speed of a motor vehicle is detected and the vehicle speed signal of detection is passed to the speed of a motor vehicle detection module 72 of main control unit 1 and the pulse width detection module 73 that fuel injection pulsewidth is detected.
The Vehicular power management system of the present embodiment also comprises that discharges and recharges a power supply unit 9, as shown in Figure 1, it comprises first electric capacity 91 in parallel with storage battery, the second electric capacity 92, the 3rd electric capacity 93, starting electric capacity 94 and anxious speed-up capacitor 95, wherein, engine speed is divided into three rotating speed intervals, i.e. low engine speed interval, middle engine speed interval, high-engine rotating speed interval, and the first electric capacity 91 arranges corresponding to low engine speed is interval, the second electric capacity 92 arranges corresponding to middle engine speed is interval, the 3rd electric capacity 93 arranges corresponding to high-engine rotating speed is interval, this is arranged so that in the time of the engine speed obtaining under vehicle current state, electric capacity corresponding to engine speed of being controlled under current state by main control unit 1 carries out electric discharge work.
In use, be described as follows to the process of operation by ignition trigger by vehicle:
Step 1, vehicle ignition starts
Whether have ignition signal, if without ignition signal, now vehicles failed starts if detecting vehicle, whole system is not worked; If there is ignition signal, vehicle launch is described, now, the first electric capacity, the second electric capacity and the 3rd electric capacity that main control unit control discharges and recharges in power supply unit discharge to vehicle electric power system.
In the time that main control unit receives speed of a motor vehicle detection module 72 and car speed detected, vehicle is in the starting stage, now, engine speed when engine speed detection module 71 detects this state simultaneously, main control unit is according to the engine speed detecting, for example this engine speed is in the time that middle engine speed is interval, and this second electric capacity of main control unit control and starting electric capacity discharge to vehicle electric power system, when making up vehicle launch, the demand of vehicle to power supply.
Step 2, under vehicle running state, voltage detection module detects the real-time voltage value of storage battery, and the data of detection are passed to main control unit; Engine speed detection module detects in real time to engine speed, and the engine speed of detection is sent to main control unit; Speed of a motor vehicle detection module detects the speed of a motor vehicle, and vehicle speed signal is sent to main control unit; Pulse width detection module detects vehicle fuel injection pulsewidth, and the result of detection is passed to main control unit.
Step 3, in the time that vehicle vehicle is under normal motoring condition, if when the real-time voltage value that voltage detection module detects is greater than the basic voltage value of storing in basic voltage memory module, vehicle electric power system is charged to the first electric capacity, the second electric capacity, the 3rd electric capacity; If when the real-time voltage value that voltage detection module detects is less than the basic voltage value of storing in basic voltage memory module, main control unit, according to the residing interval of current state engine speed, is controlled corresponding electric capacity vehicle electric power system is discharged.
When the fuel injection pulsewidth value of the current vehicle-state that the pulse width detection module receiving when main control unit detects is greater than the benchmark fuel injection pulsewidth of storage in pulsewidth memory module 8, and main control unit is according to the fuel injection pulsewidth under the fuel injection pulsewidth under current vehicle-state and vehicle previous state, judge the fuel injection pulsewidth rate of change of current state, in the time that fuel injection pulsewidth rate of change is also greater than the benchmark fuel injection pulsewidth rate of change in pulsewidth memory module 8, now, vehicle is in anxious acceleration mode, the electric capacity that the current vehicle-state engine speed of main control unit control is corresponding discharges to vehicle electric power system together with anxious speed-up capacitor simultaneously.
In as above process, the speed information detecting according to speed of a motor vehicle detection module 72 when main control unit judges that vehicle is in deceleration regime, and throttle opening is in the time of minimum value, and main control unit control vehicle electric power system is to anxious speed-up capacitor and starting capacitor charging.Also can set an engine speed value and fuel injection pulsewidth value, when the current fuel injection pulsewidth value of engine speed value, vehicle that makes vehicle present engine rotating speed be less than setting is less than the fuel injection pulsewidth value of setting, anxious speed-up capacitor and starting electric capacity are charged.
In addition; what deserves to be explained is; based on design philosophy of the present utility model; those skilled in the art may make adaptive change in the time that reality is used; as adopt the elements such as inductance to substitute electric capacity; or set up voltage sensor that the voltage and current of storage battery is detected or current sensor to judge that whether generator charging is normal; and detect throttle opening rate of change and then judge that whether vehicle belongs to anxious acceleration mode etc., all belongs to protection domain of the present utility model with engine load sensor.
Claims (4)
1. a vehicle power supply auxiliary device, comprises main control unit, characterized by further comprising:
Voltage detection module, detects the real-time voltage value of vehicle electric power system, and the data of detection is passed to main control unit;
Basic voltage memory module, is connected with main control unit, stores basic voltage value;
Discharge and recharge power supply unit, in parallel with storage battery, in the time that real-time voltage value is not less than basic voltage value, charged for discharging and recharging power supply unit by vehicle electric power system by main control unit control; In the time that real-time voltage value is less than basic voltage value, discharges and recharges power supply unit by main control unit control vehicle electric power system is discharged.
2. vehicle power supply auxiliary device according to claim 1, is characterized in that: also comprise the travel condition of vehicle detecting unit that travel condition of vehicle is detected being connected with main control unit; Described travel condition of vehicle detecting unit comprises the engine speed detection module that engine speed is detected; Described discharge and recharge power supply unit comprise in parallel with storage battery, and first electric capacity, second electric capacity and three electric capacity that arrange interval corresponding to low engine speed interval, middle engine speed interval and high-engine rotating speed.
3. vehicle power supply auxiliary device according to claim 2, is characterized in that: described travel condition of vehicle detecting unit comprises the speed of a motor vehicle detection module that the speed of a motor vehicle is detected; The described power supply auxiliary unit that discharges and recharges comprises the starting electric capacity in parallel with storage battery.
4. vehicle power supply auxiliary device according to claim 3, is characterized in that: also comprise the pulsewidth memory module that stores benchmark fuel injection pulsewidth and benchmark fuel injection pulsewidth rate of change being connected with main control unit; Described travel condition of vehicle detecting unit comprises the pulse width detection module that fuel injection pulsewidth is detected, and the described power supply auxiliary unit that discharges and recharges comprises the anxious speed-up capacitor in parallel with storage battery.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420027304.2U CN203780463U (en) | 2014-01-17 | 2014-01-17 | Vehicle power supply auxiliary device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420027304.2U CN203780463U (en) | 2014-01-17 | 2014-01-17 | Vehicle power supply auxiliary device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203780463U true CN203780463U (en) | 2014-08-20 |
Family
ID=51316675
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420027304.2U Expired - Fee Related CN203780463U (en) | 2014-01-17 | 2014-01-17 | Vehicle power supply auxiliary device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203780463U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103754180A (en) * | 2014-01-17 | 2014-04-30 | 石家庄核光电子科技有限公司 | Vehicle power supply aid and vehicle power supply assistance control method |
-
2014
- 2014-01-17 CN CN201420027304.2U patent/CN203780463U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103754180A (en) * | 2014-01-17 | 2014-04-30 | 石家庄核光电子科技有限公司 | Vehicle power supply aid and vehicle power supply assistance control method |
| CN103754180B (en) * | 2014-01-17 | 2017-06-09 | 姜添棋 | Vehicle is powered auxiliary control method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| AU2015100502A4 (en) | A compound power system for an electrical vehicle | |
| CN102991365B (en) | Power supply control apparatus for electric vehicle | |
| US20090229898A1 (en) | Controller for Electric Storage Device and Vehicle with Controller for Electric Storage Device | |
| US20100289452A1 (en) | Power supply apparatus for vehicles | |
| CN103448564A (en) | Power-source control method for vehicle, and power-source control apparatus thereof | |
| CN206494687U (en) | A kind of fork truck energy saver | |
| CN106240378B (en) | A kind of car deceleration energy management method and system | |
| CN102785585A (en) | Power-supply control apparatus of vehicle | |
| KR101323916B1 (en) | Apparatus and method for early starting of vehicle | |
| CN105291862B (en) | A kind of automobile starting/stopping system and method based on super capacitor | |
| US8442718B2 (en) | Battery charging system for vehicle and control method of the same | |
| CN102501778A (en) | Extended-range electric vehicle energy distribution method based on dual-voltage composite energy storage system | |
| CN203780463U (en) | Vehicle power supply auxiliary device | |
| CN103283403A (en) | Hybrid power mower | |
| JP2010041913A (en) | Vehicular power supply unit | |
| CN103754180A (en) | Vehicle power supply aid and vehicle power supply assistance control method | |
| CN203496693U (en) | Battery management system of electric automobile | |
| CN108177615B (en) | Energy management system based on super capacitor | |
| JP2012244864A (en) | Vehicular power unit | |
| CN102610864A (en) | Method for prolonging service life of lead acid battery | |
| CN110356280A (en) | Charge wake-up circuit, battery management system and electric car | |
| CN110901391A (en) | Battery-free power supply system for pure electric vehicle | |
| KR101638148B1 (en) | Apparatus and method for providing power in battery management system | |
| CN203472570U (en) | Intelligent charging structure of vehicle-mounted generator set of electric automobile | |
| JP2014060890A (en) | Power supply device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140820 Termination date: 20160117 |
|
| EXPY | Termination of patent right or utility model |