CN109808495A - A kind of new-energy automobile of low voltage generator substitution part DC-DC converter - Google Patents
A kind of new-energy automobile of low voltage generator substitution part DC-DC converter Download PDFInfo
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- CN109808495A CN109808495A CN201910057033.2A CN201910057033A CN109808495A CN 109808495 A CN109808495 A CN 109808495A CN 201910057033 A CN201910057033 A CN 201910057033A CN 109808495 A CN109808495 A CN 109808495A
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- voltage generator
- low voltage
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- converter
- automobile
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Abstract
The present invention relates to technical field of new energy, specially a kind of new-energy automobile of low voltage generator substitution part DC-DC converter, including low voltage generator, the output axis connection with vehicle electric motor；Low pressure controller is connect with low voltage generator, entire car controller and low tension battery respectively；DC-DC converter, input terminal are connect with power battery, and output end is connect with the low tension battery；Automobile is powered under normally travel or halted state, by the DC-DC converter to the low tension battery；Automobile is powered under loose electric switch or the state that touches on the brake, by the low voltage generator to the low tension battery.The application increases a low voltage generator on new-energy automobile high-tension motor output shaft, low voltage generator is given original DC-DC converter half or so power to export, low voltage generator can also play the function of energy regenerating simultaneously, to reduce automobile low-voltage power supply cost, and increase sub-fraction vehicle course continuation mileage.
Description
Technical field
The present invention relates to technical field of new energy, specially a kind of low voltage generator substitution part DC-DC converter
New-energy automobile.
Background technique
Vehicle-mounted low-voltage DC/DC converter is one of fuel cell car, pure electric vehicle and hybrid vehicle key equipment, master
Stable low-tension supply, including ECU, power-assisted steering are provided for each controller and low-voltage equipment, brake controls, and low pressure dissipates
Hot-air fan, low-pressure pump etc. play a crucial role the stabilization of entire Vehicular system.New energy currently on the market
The vehicle-to-vehicle upper low-voltage power supply of vapour and to low tension battery charging be all be responsible for by DC-DC converter, however DC-DC converter exist
It is at high price, the undesirable problem of transfer efficiency.
Summary of the invention
In view of the problems of the existing technology the present invention, proposes a kind of low voltage generator substitution part DC-DC converter
New-energy automobile.
The technical solution adopted by the present invention to solve the technical problems is: a kind of low voltage generator substitution part DCDC conversion
The new-energy automobile of device, including
Low voltage generator, the output axis connection with vehicle electric motor；
Low pressure controller is connect with low voltage generator, entire car controller and low tension battery respectively；
DC-DC converter, input terminal are connect with power battery, and output end is connect with the low tension battery；
Automobile is powered under normally travel or halted state, by the DC-DC converter to the low tension battery；Automobile is in pine
Electric switch touches on the brake under state, is powered by the low voltage generator to the low tension battery.
Preferably, when the low-voltage electric energy needed for automobile normal running and automobile is greater than given threshold, by the DCDC
Converter and the low voltage generator give the low tension battery to power jointly.
Preferably, the vehicle electric motor is also connected with retarder.
Preferably, the low voltage generator work is in energy recovery state.
Preferably, the output power of the low voltage generator is the half of general power needed for automobile.
The invention has the advantages that the application increases a low pressure on new-energy automobile high-tension motor output shaft
Generator gives low voltage generator original DC-DC converter half or so power to export, while low voltage generator can also rise
To the function of energy regenerating, to reduce automobile low-voltage power supply cost, and sub-fraction vehicle course continuation mileage is increased.
Detailed description of the invention
Fig. 1 is the architecture diagram for the new-energy automobile that a kind of low voltage generator of the present invention substitutes part DC-DC converter；
Wherein, 1, low voltage generator, 2, low pressure controller.
Specific embodiment
To further illustrate the technical scheme of the present invention below with reference to the accompanying drawings and specific embodiments.
As shown in Figure 1, a kind of new-energy automobile of low voltage generator substitution part DC-DC converter, including with motorcar electric
The low voltage generator 1 of the output axis connection of machine is connect with low voltage generator 1, entire car controller and low tension battery low respectively
The DC-DC converter that pressure controller 2 and input terminal are connect with power battery, output end is connect with the low tension battery.
Low voltage generator 1 generally loose electric switch or when touching on the brake by VCU, i.e. entire car controller opens electrical power generators,
To allowing low voltage generator 1 to operate mainly in the state of energy regenerating, when normally travel, low-tension supply mainly has DCDC to be responsible for
Power supply then opens low voltage generator auxiliary power supply by VCU unless low-voltage electrical apparatus needs more powerful demand.
DC-DC converter operates mainly in normally travel and waits under car states, and low voltage generator 1 operates mainly in energy and returns
Under receipts state, but when encountering the big electricity consumption of low pressure, low voltage generator 1 can also open power generation in normally travel, to mend
Needing for a period of time is filled, while battery being protected to avoid repeated charge, increases service lifetime of accumulator.
The application increases a low voltage generator on new-energy automobile high-tension motor output shaft, and original DCDC is turned
Parallel operation half or so power gives low voltage generator to export, while low voltage generator can also play the function of energy regenerating, from
And automobile low-voltage power supply cost is reduced, and increase sub-fraction vehicle course continuation mileage.
Embodiment described above is only that preferred embodiments of the present invention will be described, not to design of the invention
It is defined with range.Without departing from the design concept of the invention, ordinary people in the field is to technical side of the invention
The all variations and modifications that case is made, should all drop into protection scope of the present invention, the claimed technology contents of the present invention,
Through being all described in the claims.
Claims (5)
1. a kind of new-energy automobile of low voltage generator substitution part DC-DC converter, it is characterised in that: including
Low voltage generator (1), the output axis connection with vehicle electric motor；
Low pressure controller (2) is connect with low voltage generator (1), entire car controller and low tension battery respectively；
DC-DC converter, input terminal are connect with power battery, and output end is connect with the low tension battery；
Automobile is powered under normally travel or halted state, by the DC-DC converter to the low tension battery；Automobile is in pine
Electric switch touches on the brake under state, is powered by the low voltage generator (1) to the low tension battery.
2. a kind of new-energy automobile of low voltage generator substitution part DC-DC converter according to claim 1, feature
It is: when the low-voltage electric energy needed for automobile normal running and automobile is greater than given threshold, by the DC-DC converter and described
Low voltage generator (1) is powered to the low tension battery jointly.
3. a kind of new-energy automobile of low voltage generator substitution part DC-DC converter according to claim 1, feature
Be: the vehicle electric motor is also connected with retarder.
4. a kind of new-energy automobile of low voltage generator substitution part DC-DC converter according to claim 1, feature
Be: low voltage generator (1) work is in energy recovery state.
5. a kind of new-energy automobile of low voltage generator substitution part DC-DC converter according to claim 1, feature
Be: the output power of the low voltage generator (1) is the half of general power needed for automobile.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910057033.2A CN109808495A (en) | 2019-01-22 | 2019-01-22 | A kind of new-energy automobile of low voltage generator substitution part DC-DC converter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910057033.2A CN109808495A (en) | 2019-01-22 | 2019-01-22 | A kind of new-energy automobile of low voltage generator substitution part DC-DC converter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109808495A true CN109808495A (en) | 2019-05-28 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910057033.2A Pending CN109808495A (en) | 2019-01-22 | 2019-01-22 | A kind of new-energy automobile of low voltage generator substitution part DC-DC converter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109808495A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112208360A (en) * | 2020-10-27 | 2021-01-12 | 新动力电机（荆州）有限公司 | Auxiliary low-voltage power supply system of pure electric vehicle |
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| CN202429198U (en) * | 2011-12-27 | 2012-09-12 | 比亚迪股份有限公司 | Hybrid vehicle and control system thereof |
| US20130106176A1 (en) * | 2011-10-27 | 2013-05-02 | Lsis Co., Ltd. | Power supply system for electric vehicle and control method thereof |
| CN103192717A (en) * | 2013-04-09 | 2013-07-10 | 郑州宇通客车股份有限公司 | Low-voltage power supply system of hybrid power automobile and control method thereof |
| CN203228650U (en) * | 2013-04-09 | 2013-10-09 | 郑州宇通客车股份有限公司 | Low-voltage power supply system for hybrid power automobile |
| CN108482126A (en) * | 2018-03-02 | 2018-09-04 | 陈慧仪 | A kind of new-energy automobile activation system |
-
2019
- 2019-01-22 CN CN201910057033.2A patent/CN109808495A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20130106176A1 (en) * | 2011-10-27 | 2013-05-02 | Lsis Co., Ltd. | Power supply system for electric vehicle and control method thereof |
| CN103094948A (en) * | 2011-10-27 | 2013-05-08 | Ls产电株式会社 | Power supply system for electric vehicle and control method thereof |
| CN202429198U (en) * | 2011-12-27 | 2012-09-12 | 比亚迪股份有限公司 | Hybrid vehicle and control system thereof |
| CN103192717A (en) * | 2013-04-09 | 2013-07-10 | 郑州宇通客车股份有限公司 | Low-voltage power supply system of hybrid power automobile and control method thereof |
| CN203228650U (en) * | 2013-04-09 | 2013-10-09 | 郑州宇通客车股份有限公司 | Low-voltage power supply system for hybrid power automobile |
| CN108482126A (en) * | 2018-03-02 | 2018-09-04 | 陈慧仪 | A kind of new-energy automobile activation system |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112208360A (en) * | 2020-10-27 | 2021-01-12 | 新动力电机（荆州）有限公司 | Auxiliary low-voltage power supply system of pure electric vehicle |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20190528 |