CN208656485U - Automobile suitable for the double-voltage electric power system and application of the commercial vehicle system - Google Patents
Automobile suitable for the double-voltage electric power system and application of the commercial vehicle system Download PDFInfo
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- CN208656485U CN208656485U CN201820404876.6U CN201820404876U CN208656485U CN 208656485 U CN208656485 U CN 208656485U CN 201820404876 U CN201820404876 U CN 201820404876U CN 208656485 U CN208656485 U CN 208656485U
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- voltage
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- generator
- vehicle
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/80—Technologies aiming to reduce greenhouse gasses emissions common to all road transportation technologies
- Y02T10/92—Energy efficient charging or discharging systems for batteries, ultracapacitors, supercapacitors or double-layer capacitors specially adapted for vehicles
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Abstract
The utility model relates to be suitable for the automobile of the double-voltage electric power system of commercial vehicle and the application system；Double-voltage electric power system suitable for commercial vehicle includes generator, voltage control system, battery, first voltage main line, second voltage main line, ground wire, and voltage control system includes super-capacitor module, boost DC/DC module, decompression DCDC module, power management module；The input terminal of the anode of generator, the anode of super-capacitor module and decompression DCDC module is separately connected first voltage main line, the cathode of generator and the cathode of super-capacitor module are separately connected ground wire, the input terminal of the output end and boost DC/DC module that are depressured DCDC module is separately connected second voltage main line, and the output end of boost DC/DC module is controlled by power management module and is output to first voltage main line.When battery charge state is power shortage, the output voltage for improving decompression DCDC charges to battery.When engine does not operate, turns off the exciting current of generator and connect the exciting current of generator when engine operates.
Description
Technical field
The utility model newly relates to power supply on vehicle field, is more particularly for the twin voltage of conventional commercial vehicle (non-new energy)
Power-supply system and vehicle.
Background technique
The power-supply system of orthodox car is divided into 12V system and 24V system, and usual passenger car and light commercial vehicle use 12V
System, heavy-duty commercial vehicle such as heavy truck and car mostly use 24V system.For the automobile of 12V system, the nominal operation of vehicle electric element
Voltage is 12V；For the vehicle of 24V system, the nominal operating voltage of vehicle electric element is 24V.【1】Usually, these vehicles are all
It is single supply voltage, the i.e. generator of vehicle and battery while is all 12V system, or is all 24V system simultaneously.
As the degree of vehicle electric element is higher and higher, the general power of vehicle electric element continues to increase, identical according to P=UI
Under power, voltage is higher, and electric current is smaller.So can reduce the current loss of vehicle using the system voltage of greater degree.Together
When due to electric current reduction, can using line footpath thinner, the lower conducting wire of specification, be conducive to mitigate complete vehicle weight and reduction
Cost.
Application No. is 201310105930.9 patents to disclose a kind of twin voltage electric control method of automobile, the first electricity
Pressure is 48V, second voltage 12V.Battery, starting generator are converted first voltage by DCDC in first voltage circuit
After second voltage, it is powered to the electrical appliance of second voltage circuit.The starting of the technology that the patent is stated, engine is
By the starting generator (all-in-one machine) of 48V, in second voltage side and battery and starter, the starting of conventional truck are not included
Machine voltage rating is 12V or 24V, so the technology is only applicable to the hybrid vehicle with starting generator, and uncomfortable
For conventional truck.
Application No. is 201520309959.3 patents to disclose a kind of twin voltage super capacitor applied to start stop system
Device composite power source, super capacitor mould group, starter and generator are located at low-voltage side, and battery is located at high voltage side, low
Voltage side is connected with high-voltage side by a bidirectional DC/DC module.The technology is primarily to realize the start and stop function of engine
Can, to reach energy saving purpose.It is started since starter needs super capacitor to power, and the energy density of super capacitor
It is smaller compared to battery, need to match the super capacitor mould group of larger specification, higher cost.
Application No. is 201520357631.9 patents to disclose a kind of commercial vehicle twin voltage hybrid power source system, the technology
Battery, generator and the starter of scheme are all 24V, convert out 12V by a DCDC and supply to Engine ECU and instrument
Electricity.Engine ECU for solving 12V is used for 24V vehicle, using this twin voltage framework, can reduce cost and exploitation week
Phase.Since starter and battery are 24V, need to match exploitation 24V starter again on the engine of former 12V system.
1.QC-T413-2002 automotive electric equipment fundamental technical specifications, the operating voltage range of 3.1.4 product.
Utility model content
The utility model, which is conceived to, to be solved above-mentioned technical task and conceives, a kind of suitable for quotient its object is to design
With the double-voltage electric power system of vehicle.
Double-voltage electric power system provided by the utility model includes generator, voltage control system, battery, the first electricity
Main line, second voltage main line, ground wire are pressed, voltage control system includes super-capacitor module, boost DC/DC module, decompression DCDC
Module, power management module；The input terminal of the anode of generator, the anode of super-capacitor module and decompression DCDC module connects respectively
First voltage main line is connect, the cathode of generator and the cathode of super-capacitor module are separately connected ground wire, are depressured the defeated of DCDC module
The input terminal of outlet and boost DC/DC module is separately connected second voltage main line, and the output end of boost DC/DC module passes through power supply pipe
Reason module controls and is output to first voltage main line.
Further, the upper limit operation voltage of super-capacitor module is higher than generator output voltage.
Further, the voltage of first voltage main line is higher than the voltage of second voltage main line.
Further, power management module connects comprising generator diagnosis interface, accumulator monitoring interface, super capacitor monitoring
Mouth, DCDC monitoring/control interface, communication interface, the power supply of power management module are obtained from battery by boost DC/DC module
?.
Further, the battery of vehicle and the starter of engine and ECU are connected in parallel on second voltage main line and ground
Between line.
Further, power management module generator diagnosis interface connect with generator, ice storing time interface and storage
Battery sensor connection, communication interface and vehicular meter connect.
Further, the communication mode of communication interface is that CAN communication or LIN are communicated.
When engine operates, when power management module detects that battery charge state is power shortage, it can be dropped by improving
The output voltage of DCDC is pressed to carry out reinforcing charging to battery.Power management module can obtain engine by communication interface
Status signal turns off the exciting current of generator, generator is made not generate electricity when the engine is not running.When the engine runs,
The exciting current for connecting generator, makes generator start to generate electricity.
The following technical solution is employed for the vehicle of the utility model: vehicle includes the twin voltage of car body and setting on the car body
Power-supply system, double-voltage electric power system include generator, voltage control system, battery, first voltage main line, second voltage master
Line, ground wire, voltage control system include super-capacitor module, boost DC/DC module, decompression DCDC module, power management module；
The input terminal of the anode of generator, the anode of super-capacitor module and decompression DCDC module is separately connected first voltage main line, sends out
The cathode of motor and the cathode of super-capacitor module are separately connected ground wire, are depressured the output end and boost DC/DC module of DCDC module
Input terminal be separately connected second voltage main line, the output end of boost DC/DC module is controlled and is output to by power management module
First voltage main line, the nominal voltage of first voltage main line voltage are 24V.
Further, the upper limit operation voltage of super-capacitor module is higher than generator output voltage.
Further, the voltage of first voltage main line is higher than the voltage of second voltage main line.
Further, power management module connects comprising generator diagnosis interface, accumulator monitoring interface, super capacitor monitoring
Mouth, DCDC monitoring/control interface, communication interface, the power supply of power management module are obtained from battery by boost DC/DC module
?.
Further, the battery of vehicle and the starter of engine and ECU are connected in parallel on second voltage main line and ground
Between line.
Further, power management module generator diagnosis interface connect with generator, ice storing time interface and storage
Battery sensor connection, communication interface and vehicular meter connect.
Further, the communication mode of communication interface is that CAN communication or LIN are communicated.
Further, the nominal voltage of the second main line voltage is 12V.
Further, at least one of the air-conditioning on vehicle, electronic fan, headlight, instrument and current vortex retarder be simultaneously
It is associated on first voltage main line.
The following technical solution is employed for the vehicle of the utility model: vehicle includes the twin voltage of car body and setting on the car body
Power-supply system, double-voltage electric power system include generator, voltage control system, battery, first voltage main line, second voltage master
Line, ground wire, voltage control system include super-capacitor module, boost DC/DC module, decompression DCDC module, power management module；
The input terminal of the anode of generator, the anode of super-capacitor module and decompression DCDC module is separately connected first voltage main line, sends out
The cathode of motor and the cathode of super-capacitor module are separately connected ground wire, are depressured the output end and boost DC/DC module of DCDC module
Input terminal be separately connected second voltage main line, the output end of boost DC/DC module is controlled and is output to by power management module
First voltage main line, the nominal voltage of first voltage main line voltage are 48V, and the nominal voltage of second voltage main line is 24V.
Further, the upper limit operation voltage of super-capacitor module is higher than generator output voltage.
Further, the voltage of first voltage main line is higher than the voltage of second voltage main line.
Further, power management module connects comprising generator diagnosis interface, accumulator monitoring interface, super capacitor monitoring
Mouth, DCDC monitoring/control interface, communication interface, the power supply of power management module are obtained from battery by boost DC/DC module
?.
Further, the battery of vehicle and the starter of engine and ECU are connected in parallel on second voltage main line and ground
Between line.
Further, power management module generator diagnosis interface connect with generator, ice storing time interface and storage
Battery sensor connection, communication interface and vehicular meter connect.
Further, the communication mode of communication interface is that CAN communication or LIN are communicated.
Further, at least one of the air-conditioning on vehicle, current vortex retarder, electronic fan and electric heater are in parallel
On first voltage main line, at least one of battery, starter, instrument and lighting system on vehicle are connected in parallel on the second electricity
It presses on main line.
Detailed description of the invention
Fig. 1 is the system structure diagram of the utility model；
Fig. 2 is the current flow diagram of engine unstart state；
Fig. 3 is the current flow diagram of engine operating status；
Fig. 4 is the vehicle electric element system schematic of embodiment 1；
Fig. 5 is the vehicle electric element system schematic of embodiment 2.
In figure: 1 generator
2 generators diagnose interface
3 voltage control systems
4 power management modules
5 communication interfaces
6 DCDC monitorings/control interface
7 accumulator monitoring interfaces
8 boost DC/DC modules
9 first voltage main lines
10 super capacitors monitor interface
11 DCDC monitorings/control interface
12 input terminals
13 output ends
14 output ends
15 input terminals
16 starters
17 ECU
18 second voltage main lines
19 super-capacitor modules
20 decompression DCDC modules
21 batteries
22 ground wires
23 air-conditionings
24 electronic fans
25 current vortex retarders
26 electric heater units
27 instrument
28 light electric appliances
29 other loads relevant to engine
Specific embodiment
The utility model is illustrated below according to specific embodiment shown in figure.
Fig. 1 illustrates the system structure diagram of the utility model, according to Fig. 1, twin voltage provided by the utility model
Power-supply system includes generator 1, voltage control system 3 (in dotted line frame), battery 21, first voltage main line 9, second voltage
Main line 18, ground wire 22.
As shown in Figure 1, voltage control system 3 (in dotted line frame) includes power management module 4, super-capacitor module 19, drop
Press DCDC module 20, boost DC/DC module 8.
As shown in Figure 1, voltage control system 3 includes the motor diagnostic interface 2 and accumulator monitoring of connection generator
Interface 7 and super capacitor monitoring interface 10 and DCDC monitoring/control interface 6 and 11 and communication interface 5.
As shown in Figure 1, the anode of super-capacitor module 19 connects on first voltage main line 9, cathode is connect on ground wire 22.
As shown in Figure 1, the input terminal 12 of decompression DCDC module 20 connects on first voltage main line 9, output end 13 is connect the
On two voltage main lines 18, cathode is connect on ground wire 22.
As shown in Figure 1, the input terminal 15 of boost DC/DC module 8 connects on second voltage main line 18, output end 14 is connect
On one voltage main line 9, cathode is connect on ground wire 22.
As shown in Figure 1, the anode of the battery 21 of vehicle motor, starter 16 and ECU 17 connects in second voltage master
On line 18, cathode is connect on ground wire 22.
As shown in Fig. 2, battery 21 gives first voltage main line 9 by boost DC/DC module 8 when vehicle motor unstart
On equipment power supply, including to super-capacitor module 19 charge, and to power management module 4 power；Arrow meaning is electric current
Direction.
As shown in Fig. 2, battery 21 is powered to starter 16 and ECU 17 in vehicle motor starting process, it has been used to
At the starting of engine.
As shown in figure 3, generator 1 enters generating state after vehicle motor starts successfully, on first voltage main line 9
Electric power supply, including to power management module 4 power, to super-capacitor module 19 charge；Meanwhile by being depressured DCDC mould
It after block 20 is depressured, is powered to the equipment on second voltage main line 18, including charges to battery 21, give engine
ECU 17 powers.
Fig. 4 is the system block diagram of specific embodiment of the utility model 1.In this embodiment, the first main line voltage is
48V, the second main line voltage are 24V.Load on first main line only includes large power-consuming equipment, such as air-conditioning 23, electron wind
Fan 24, current vortex retarder 25, electric heater unit 26；The load of second voltage main line includes starter 16, Engine ECU
17, instrument 27, light electric appliance 28 and other electrical appliances.The embodiment is suitable for but is not limited to the 48V Electrical System of car
System framework.48V electric system has the advantage that, due to the raising of system voltage, the electrical appliance of equal-wattage, electric current is than original 24V
Or 12V system substantially reduces, electric current is reduced in the slippages of conducting wire, is conducive to automobile energy-saving；Lower rule can be used simultaneously
The conducting wire of lattice can mitigate complete vehicle weight, reduce the wire cost of vehicle.48V electric system has had application in passenger car, but
High-volume is not promoted yet, in commercial vehicle field there is not yet there is application, the reason is that needing to be directed to 48V voltage mark to full vehicular electrical appliance
Standard is developed, and the R&D cycle is long, is researched and developed at high cost.After the technology for using the utility model embodiment, it is thus only necessary to
For a small number of high-power electric appliance equipment development 48V versions, the advantage for mitigating complete vehicle weight, reducing wire cost can be realized, and
It is substantially shorter development cycle and development cost.
Fig. 5 is the system block diagram of specific embodiment of the utility model 2.In this embodiment, the first main line voltage is
28V, the second main line voltage are 12V.The load of second voltage main line include starter 16, Engine ECU 17 and other with start
The relevant load 29 of machine；Other electric appliances of vehicle connect on first voltage main line, such as air-conditioning 23, instrument 27, light 28.
Vehicle use the utility model the embodiment after, especially suitable for but be not limited to the vehicle of 24V system in lesser skill
Under art change conditions, the engine for using 12V system is expanded, the engine type selecting and skill of the commerial vehicle of 24V system have been widened
Art scheme.
Claims (12)
1. be suitable for commercial vehicle double-voltage electric power system, it is characterised in that: comprising generator, voltage control system, battery,
First voltage main line, second voltage main line, ground wire, voltage control system include super-capacitor module, boost DC/DC module, decompression
DCDC module, power management module；The anode of generator, the anode of super-capacitor module and the input terminal point for being depressured DCDC module
Not Lian Jie first voltage main line, the cathode of generator and the cathode of super-capacitor module are separately connected ground wire, are depressured DCDC module
Output end and the input terminal of boost DC/DC module be separately connected second voltage main line, the output end of boost DC/DC module passes through electricity
Source control module controls and is output to first voltage main line.
2. double-voltage electric power system as described in claim 1, it is characterised in that: the upper limit operation voltage of super-capacitor module is high
In generator output voltage.
3. double-voltage electric power system as described in claim 1, it is characterised in that: the voltage of first voltage main line is higher than the second electricity
Press the voltage of main line.
4. double-voltage electric power system as described in claim 1, it is characterised in that: power management module includes that generator diagnosis connects
Mouth, accumulator monitoring interface, super capacitor monitor interface, DCDC monitoring/control interface, communication interface, power management module
Power supply is obtained from battery by boost DC/DC module.
5. such as the described in any item double-voltage electric power systems of Claims 1-4, it is characterised in that: battery, the Yi Jifa of vehicle
The starter and ECU of motivation are connected in parallel between second voltage main line and ground wire.
6. double-voltage electric power system as claimed in claim 4, it is characterised in that: the generator of power management module diagnoses interface
It is connect with generator, ice storing time interface is connect with storage battery sensor, the connection of communication interface and vehicular meter.
7. double-voltage electric power system as claimed in claim 6, it is characterised in that: the communication mode of communication interface is CAN communication
Or LIN communication.
8. a kind of vehicle comprising the described in any item double-voltage electric power systems of claim 1 to 7, it is characterised in that: the first electricity
The nominal voltage for pressing main line voltage is 24V.
9. vehicle as claimed in claim 8, it is characterised in that: the nominal voltage of the second main line voltage is 12V.
10. vehicle as claimed in claim 8 or 9, it is characterised in that: air-conditioning, electronic fan, headlight, instrument on vehicle and
At least one of current vortex retarder is connected in parallel on first voltage main line.
11. a kind of vehicle comprising the described in any item double-voltage electric power systems of claim 1 to 7, it is characterised in that: the first electricity
The nominal voltage for pressing main line voltage is 48V, and the nominal voltage of second voltage main line is 24V.
12. vehicle as claimed in claim 11, it is characterised in that: air-conditioning, current vortex retarder, electronic fan on vehicle and
At least one of electric heater is connected in parallel on first voltage main line, battery, starter, instrument and lighting system on vehicle
At least one of be connected in parallel on second voltage main line.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820404876.6U CN208656485U (en) | 2018-03-25 | 2018-03-25 | Automobile suitable for the double-voltage electric power system and application of the commercial vehicle system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820404876.6U CN208656485U (en) | 2018-03-25 | 2018-03-25 | Automobile suitable for the double-voltage electric power system and application of the commercial vehicle system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208656485U true CN208656485U (en) | 2019-03-26 |
Family
ID=65774797
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820404876.6U Expired - Fee Related CN208656485U (en) | 2018-03-25 | 2018-03-25 | Automobile suitable for the double-voltage electric power system and application of the commercial vehicle system |
Country Status (1)
| Country | Link |
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| CN (1) | CN208656485U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113734066A (en) * | 2020-05-27 | 2021-12-03 | 郑州宇通客车股份有限公司 | Vehicle and power utilization coordination control method and device thereof |
-
2018
- 2018-03-25 CN CN201820404876.6U patent/CN208656485U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113734066A (en) * | 2020-05-27 | 2021-12-03 | 郑州宇通客车股份有限公司 | Vehicle and power utilization coordination control method and device thereof |
| CN113734066B (en) * | 2020-05-27 | 2023-10-03 | 宇通客车股份有限公司 | Vehicle and electricity coordination control method and device thereof |
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190326 Termination date: 20200325 |
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| CF01 | Termination of patent right due to non-payment of annual fee |