CN103072464A - High voltage system power-on and power-off control circuit of series hybrid vehicle and control method - Google Patents

High voltage system power-on and power-off control circuit of series hybrid vehicle and control method Download PDF

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Publication number
CN103072464A
CN103072464A CN2013100447701A CN201310044770A CN103072464A CN 103072464 A CN103072464 A CN 103072464A CN 2013100447701 A CN2013100447701 A CN 2013100447701A CN 201310044770 A CN201310044770 A CN 201310044770A CN 103072464 A CN103072464 A CN 103072464A
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CN
China
Prior art keywords
power
electricity
module
pressure
control circuit
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CN2013100447701A
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Chinese (zh)
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CN103072464B (en
Inventor
尹剑
陈顺东
柯垒
吴成加
赵枫
徐川
胡洋
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安徽安凯汽车股份有限公司
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    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02TCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00Road transport of goods or passengers
    • Y02T10/60Other road transportation technologies with climate change mitigation effect
    • Y02T10/62Hybrid vehicles
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02TCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00Road transport of goods or passengers
    • Y02T10/60Other road transportation technologies with climate change mitigation effect
    • Y02T10/70Energy storage systems for electromobility, e.g. batteries
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02TCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00Road transport of goods or passengers
    • Y02T10/80Technologies aiming to reduce greenhouse gasses emissions common to all road transportation technologies
    • Y02T10/92Energy efficient charging or discharging systems for batteries, ultracapacitors, supercapacitors or double-layer capacitors specially adapted for vehicles

Abstract

The invention provides a high voltage system power-on and power-off control circuit of a series hybrid vehicle and a control method. The high voltage system power-on and power-off control circuit comprises a driving module and a power generation module, wherein the driving module is connected in parallel to the two ends of a high-voltage battery module through a main contactor S2 and a pre-charging contactor S3 which are connected in parallel; the power generation module is connected in parallel to the two ends of the driving module; the driving module comprises a driving controller; the power generation module comprises a power generation controller; the power generation module is connected in parallel to the two ends of the high-voltage battery module; and a switching element S1 is connected between positive electrodes of the power generation module and the high-voltage battery module. According to the high voltage system power-on and power-off control circuit, power generated by the power generation module during power-off time delay is charged to the high-voltage battery module, so that the problem of capacitive over-charging for connection of the driving module and the power generation module between a positive electrode and a negative electrode of a high-voltage bus due to no consumptive load is solved; and thus, the safety of a high-voltage system power-on and power-off process of the series hybrid vehicle is guaranteed.

Description

A kind of series hybrid electric vehicle high-pressure system power-on and power-off control circuit and control method
Technical field
The present invention relates to the hybrid vehicle field, specifically a kind of series hybrid electric vehicle high-pressure system power-on and power-off control circuit and control method.
 
Background technology
In recent years, along with the global warming phenomenon is on the rise, and more and more nervous contradiction between oil supply and demand, " energy-conserving and environment-protective ", " minimizing greenhouse gas emission " etc. have become focus and the Research Emphasis of automotive field.Hybrid vehicle is two or more single drive source reasonable combination that can turn round simultaneously, thereby takes full advantage of its advantage in each drive source shortcoming of compensation, is low oil consumption and the clean air vehicles of current tool actual development meaning.
The used electrokinetic cell high direct voltage of series hybrid electric vehicle can be up to 600V, so the safety of high-pressure system power-on and power-off is significant for the long-time safe and stable operation of series hybrid electric vehicle with stability.
In the prior art, series hybrid electric vehicle is to realize by the contactless contactor S2 of driver module control and the break-make of precharge switch S3 to the control of high-pressure system power-on and power-off.When car load requires lower electricity, the contactless contactor S2 of driver module control can disconnect being connected of high pressure consumer and high-tension battery module immediately, but, be directly parallel in the driver module positive and negative end, can spontaneous high pressure electricity generation module stop generating state and then need time-delay about 200ms to fully stopping to generate electricity from entering.The electricity that electricity generation module sends in this time electricity time-delay can be quick-fried to filling the electric capacity that driver module and electricity generation module itself are connected between the high voltage bus both positive and negative polarity owing to there not being the expendable load.Consider the high-pressure system upward and downward electric process for the importance of car load, be necessary to design a kind of control circuit and control method that can ensure series hybrid electric vehicle high-pressure system upward and downward electric process safety.
Summary of the invention
The technical problem to be solved in the present invention provides a kind of series hybrid electric vehicle high-pressure system power-on and power-off control circuit and control method, and it is simple in structure, dependable performance and can ensure well the in all cases safety of upward and downward electric process of high-pressure system.
Technical scheme of the present invention is:
A kind of series hybrid electric vehicle high-pressure system power-on and power-off control circuit, comprise the driver module that main contactor and precharge contactless switch by parallel connection be connected in parallel on high-tension battery module two ends, the electricity generation module that is connected in parallel on the driver module two ends, driver module comprises driving governor, electricity generation module comprises electricity generating controller, electricity generation module is connected in parallel on high-tension battery module two ends, and is connected with on-off element between its positive pole.
The signal input part of the on-off element of described series hybrid electric vehicle high-pressure system power-on and power-off control circuit is connected with the signal output part of electricity generating controller.
The on-off element of described series hybrid electric vehicle high-pressure system power-on and power-off control circuit is controllable relays.
The electricity generating controller with suicide lower Electricity Functional of described series hybrid electric vehicle high-pressure system power-on and power-off control circuit connects normal electricity.
It is that the high voltage bus of 50 square millimeters is connected that the high-tension battery module of described series hybrid electric vehicle high-pressure system power-on and power-off control circuit, driver module and electricity generation module all adopt sectional area between any two.
The control method of described series hybrid electric vehicle high-pressure system power-on and power-off control circuit may further comprise the steps:
(1) when driver module receives that car load powers on instruction, driving governor control precharge contactless switch is closed, beginning precharge;
(2) after precharge was finished, driving governor control main contactor was closed, controlled simultaneously the precharge contactless switch and disconnected;
(3) electricity generating controller detect main contactor power on finish after, the master cock element is closed, finishes car load high-pressure system power up;
(4) when driver module received under the car load that electric instruction or car load low-voltage power supply are cut off, driving governor entered power-down state, disconnected immediately by the main contactor of its control;
(5) electricity that sends of electricity generation module charges to the high-tension battery module by the loop that it and high-tension battery module and on-off element consist of;
(6) when electricity generating controller detects electricity generation module and fully stops to generate electricity, the master cock element disconnects, and opens suicide lower electricity, finishes electric process under the car load high-pressure system.
The present invention passes through electricity generation module is in parallel with the high-tension battery module, and between its positive pole on-off element is set, and can ensure the safety of series hybrid electric vehicle high-pressure system upward and downward electric process.The electricity that electricity generation module sends in lower electricity time-delay can charge to the high-tension battery module by it and the loop of on-off element and high-tension battery module composition, overcharges problem with regard to having solved the electric capacity that the driver module that may cause owing to there not being the expendable load and electricity generation module itself be connected between the high voltage bus both positive and negative polarity like this; After electricity generation module stopped generating fully, on-off element disconnected, thereby finished electricity under the safety of car load high-pressure system.The present invention is simple in structure, dependable performance.
Description of drawings
Fig. 1 is electrical block diagram of the present invention.
 
The specific embodiment
As shown in Figure 1, a kind of series hybrid electric vehicle high-pressure system power-on and power-off control circuit, comprise high-tension battery module 1, be connected in parallel on high-tension battery module 1 two ends driver module 2, be connected in parallel on the electricity generation module 3 at driver module 2 two ends; Between the positive pole of driver module 2 and high-tension battery module 1, be connected to main contactor S2 parallel with one another and precharge contactless switch S3, wherein, precharge contactless switch S3 is serially connected with pre-charge resistance R, the withstand voltage of pre-charge resistance R is 1.5 times of cell pressure, anti-flow valuve is that 1.5 times of cell pressures are divided by the pre-charge resistance value, the contact point withstand voltage of main contactor S2 is cell pressure more than 1.5 times, and the adhesive line is wrapped electric induction voltage less than 1.5 times of low voltage voltage; Electricity generation module 3 is connected in parallel on high-tension battery module 1 two ends, is connected to controllable relays S1 between its positive pole, and the adhesive withstand voltage of controllable relays S1 is higher than 1.5 times of cell pressures, and the line at controllable relays S1 two ends is greater than 25 square millimeter wire diameters.
Driver module 2 includes electrical motor and driving governor (not shown in figure 1), and electrical motor connects high-tension current, and driving governor connects low tension, and the signal output part of driving governor is connected signal input part with main contactor S2 respectively and is connected with precharge contactless switch S3.
Electricity generation module 3 includes electrical generator and electricity generating controller (not shown in figure 1), and electricity generating controller connects normal electricity and with suicide lower Electricity Functional, the signal output part of electricity generating controller is connected with the signal input part of controllable relays S1.
Principle of work of the present invention:
When driver module 2 receives that car load powers on instruction, S3 is closed for driving governor control precharge contactless switch, the capacitor charging that high-tension battery module 1 begins high pressure consumer (not shown in figure 1)s such as electrical motors makes voltage between the high pressure consumer positive and negative busbar near the voltage at high-tension battery module 1 two ends; After precharge was finished, S2 was closed for driving governor control main contactor, controls simultaneously precharge contactless switch S3 and disconnects; Electricity generating controller detect main contactor S2 power on finish after, control controllable relays S1 is closed, finishes car load high-pressure system power up.
When driver module 2 receives under the car load that electric instruction or car load low-voltage power supply are cut off, because logic control element all can only be used low-voltage power supply on the car, so driving governor can enter power-down state, also can disconnect immediately by the main contactor S2 of its control, thereby disconnected being connected between high pressure consumer and the high-tension battery module 1; Because electricity generating controller connects normal electricity, so this moment, electricity generating controller can not enter power-down state, also can not disconnect by the controllable relays S1 of its control; Electricity generation module 3 electricity that (about 200ms) sends in lower electricity time-delay can charge to high-tension battery module 1 by the loop of it and high-tension battery module 1 and controllable relays S1 formation; When electricity generating controller detects electrical generator and fully stops to generate electricity, control controllable relays S1 disconnects, and open suicide lower electricity (so-called suicide lower electricity, refer to when detect oneself can below when electricity, source switch disconnection by ACTIVE CONTROL oneself realizes down electricity), finish electric process under the car load high-pressure system.
The above embodiment only is that preferred implementation of the present invention is described; be not that scope of the present invention is limited; design under the prerequisite of spirit not breaking away from the present invention; various distortion and improvement that those of ordinary skills make technical scheme of the present invention all should fall in the definite protection domain of claims of the present invention.

Claims (6)

1. series hybrid electric vehicle high-pressure system power-on and power-off control circuit, comprise the driver module (2) that main contactor (S2) by parallel connection and precharge contactless switch (S3) be connected in parallel on high-tension battery module (1) two ends, the electricity generation module (3) that is connected in parallel on driver module (2) two ends, driver module (2) comprises driving governor, electricity generation module (3) comprises electricity generating controller, it is characterized in that: electricity generation module (3) is connected in parallel on high-tension battery module (1) two ends, and is connected with on-off element (S1) between its positive pole.
2. series hybrid electric vehicle high-pressure system power-on and power-off control circuit according to claim 1, it is characterized in that: the signal input part of described on-off element (S1) is connected with the signal output part of electricity generating controller.
3. series hybrid electric vehicle high-pressure system power-on and power-off control circuit according to claim 1 and 2 is characterized in that: described on-off element (S1) is controllable relays.
4. series hybrid electric vehicle high-pressure system power-on and power-off control circuit according to claim 1 and 2, it is characterized in that: the electricity generating controller with suicide lower Electricity Functional connects normal electricity.
5. series hybrid electric vehicle high-pressure system power-on and power-off control circuit according to claim 1 is characterized in that: it is that the high voltage bus of 50 square millimeters is connected that described high-tension battery module (1), driver module (2) and electricity generation module (3) all adopt sectional area between any two.
6. the control method of series hybrid electric vehicle high-pressure system power-on and power-off control circuit according to claim 1 is characterized in that may further comprise the steps:
(1) when driver module (2) receives that car load powers on instruction, driving governor control precharge contactless switch (S3) closure, beginning precharge;
(2) after precharge was finished, driving governor control main contactor (S2) closure was controlled simultaneously precharge contactless switch (S3) and is disconnected;
(3) electricity generating controller detect main contactor (S2) power on finish after, master cock element (S1) closure is finished car load high-pressure system power up;
(4) when driver module (2) received under the car load that electric instruction or car load low-voltage power supply are cut off, driving governor entered power-down state, disconnected immediately by the main contactor (S2) of its control;
(5) electricity that sends of electricity generation module (3) charges to high-tension battery module (1) by the loop that it and high-tension battery module (1) and on-off element (S1) consist of;
(6) detect electricity generation module (3) when fully stopping to generate electricity when electricity generating controller, master cock element (S1) disconnects, and opens suicide lower electricity, finishes electric process under the car load high-pressure system.
CN201310044770.1A 2013-02-05 2013-02-05 A kind of series hybrid electric vehicle high-pressure system power-on and power-off control circuit and control method CN103072464B (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104553813A (en) * 2014-12-16 2015-04-29 惠州市亿能电子有限公司 Electric automobile high-voltage power-on circuit and control method thereof
CN108773271A (en) * 2018-06-08 2018-11-09 北京长城华冠汽车科技股份有限公司 The method for controlling power supply of electric vehicle
TWI681889B (en) * 2016-03-22 2020-01-11 光陽工業股份有限公司 Series hybrid power device for vehicle and control method thereof

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TWI681889B (en) * 2016-03-22 2020-01-11 光陽工業股份有限公司 Series hybrid power device for vehicle and control method thereof
CN108773271A (en) * 2018-06-08 2018-11-09 北京长城华冠汽车科技股份有限公司 The method for controlling power supply of electric vehicle

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