CN101007523A - Power supply system for automobile - Google Patents
Power supply system for automobile Download PDFInfo
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- CN101007523A CN101007523A CN 200710003758 CN200710003758A CN101007523A CN 101007523 A CN101007523 A CN 101007523A CN 200710003758 CN200710003758 CN 200710003758 CN 200710003758 A CN200710003758 A CN 200710003758A CN 101007523 A CN101007523 A CN 101007523A
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- electric power
- battery
- electrical generator
- driving engine
- relay
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Abstract
An electricity supply system is mounted on vehicle such as motorbicycle. The electricity supply system includes an electric generator 20 drived by a motor 10, onboard battery 24, and electric load, such as spark plug 16 and fuel injector 13. In order to start the motor 10, checking battery voltage, opening charged circuit for the battery 24 when the voltage is lower than preset level. Through initial rotation of the motor 10, generating electric power in the electric generator 20 for providing exculsively to the electric load to start successfully the motor 10. After the electric power generated in the electric generator 20 gets to enough high level, the battery 24 is charged by the electric power generated in the electric generator 20.
Description
Technical field
The present invention relates to a kind of electric power supply system that is installed on the power actuated vehicle.
Background technology
In motor bike, on-vehicle electronic controller is powered by on-vehicle battery, and driving engine starts according to the beginning of the operation of electronic controller.Behind engine starting, it drives an electrical generator, and the electric power that is produced by this electrical generator is provided for electronic control unit.The electric power that is produced by electrical generator also is provided for battery, to charge the battery.When cell pressure was enough high, electrical generator was successfully started by battery by this way.
When cell pressure was not high enough, driving engine can not be started by the electric power supply from battery.Therefore, driving engine is started by the mode with foot-operated startup, and the operation of electronic control unit begins by the electric power that is produced by engine-driven generator is provided.Yet, there is a problem, i.e. the beginning of the operation of electronic controller has been delayed to charge the battery because the electric power that is produced also is provided for battery.In order to address this problem, the JP-A-2002-98032 suggestion when engine starting, is disconnected to the circuit of battery, and behind the enough height of engine speed, charges the battery by the circuit that is closed into battery.
In the system of this proposal, battery is connected by ignition lock with electronic controller, and further, arranges an electrical generator in the circuit that connects battery and electronic controller.Therefore, when cell pressure was low, in case closes ignition switch, electric current just may flow into battery.In order to prevent this counter-current, in this circuit, provide a diode.Yet, there is such problem, that is, because the forward voltage of diode, loss in voltage has appearred in transdiode.The voltage that offers electronic controller from battery or electrical generator reduces the amount of this loss in voltage.Thereby, the efficient of the electric power supply that is used for start the engine that offers electronic controller is had adverse effect, and the efficient of engine starting has reduced.
Summary of the invention
The present invention considers the problems referred to above and makes, and an object of the present invention is to provide a kind of improved electric power supply system that is used for power actuated vehicle, and it provides the required electric power of start the engine to mobile unit, as electronic control unit effectively.
Electric power supply system according to the present invention is advantageously utilised in the power actuated vehicle such as motor bike.This system comprises by engine-driven generator, on-vehicle battery, the necessary electric load of operation driving engine, be used to provide first circuit and the electric power that utilizes electrical generator the produce second circuit that charge the battery of electric power to electric load.This electric load comprises the electronic control unit of fuel injector, light-up plug and the operation of control driving engine.
This electric power supply system works in the following manner.At first check cell pressure, whether be lower than predetermined voltage to judge cell pressure.If cell pressure is lower than predetermined voltage, the second circuit that then is used to charge the battery is opened by relay.Then, the mode with for example foot-operated action is initially rotated driving engine.The electric power that is produced in the electrical generator by initially being rotated in of driving engine is provided for electric load by first circuit, as light-up plug and fuel injector.Like this, driving engine is activated.After the rotating speed of driving engine became enough height, battery was charged by the electric power that is produced by electrical generator.
Because when cell pressure is low, the electric power that is produced by the initial rotation of driving engine is offered electric load specially, and does not charge the battery, and is moved the necessary electric load of driving engine so electric power offers effectively.Therefore, can guarantee start the engine, and not fail.Further, do not prevent the diode of current direction battery owing to have to use when cell pressure is low, so in system according to the present invention, do not produce the loss in voltage of transdiode.Can understand better from the preferred embodiment of describing below with reference to accompanying drawing, other purpose of the present invention and feature will be more apparent.
Description of drawings
Fig. 1 shows the integrally-built diagram of block of engine management system;
Fig. 2 shows the circuit diagram according to electric power supply system of the present invention;
Fig. 3 shows the diagram of circuit of the process of control battery charge;
Fig. 4 shows the circuit diagram of the modification of electric power supply system; And
Fig. 5 shows the circuit diagram of another modification of electric power supply system.
The specific embodiment
The first embodiment of the present invention will be described with reference to figure 1-3.At first, with reference to figure 1, will the integral structure of engine management system be described.Air inlet pipe 11 and freeing pipe 12 are connected to driving engine 10.Fuel injector 13 is arranged in the air inlet pipe 11.Fuel in the Fuel Tank 14 is drawn by petrolift in the case 15, and is pressurized to intended fuel pressure.The fuel of this pressurization is provided for fuel injector 13.Light-up plug 16 is installed in the cylinder head of driving engine 10, and high potential offers light-up plug 16 from firing installation 17.Spurting into the fuel of driving engine 10 is lighted a fire by light-up plug 16.
The operation of electronic control unit 30 (being called ECU) control driving engine 10.Various signals are fed to ECU30 as the rotating speed of driving engine 10 and engine loading from separately sensor.ECU30 is based on the running state of those signal detection driving engines 10, and based on the operation of running state control fuel injector 13, petrolift 15 and the firing installation 17 of the driving engine 10 of this detection.
With reference to figure 2, description is installed in electronic system on the power actuated vehicle.AC electrical generator 20 as single-phase magnetic generator, is driven by driving engine 10.The electric power that is produced by AC electrical generator 20 is provided for head lamp and taillight 21.Further, from the electric power of electrical generator 20 output by voltage regulator 22 rectifications and be adjusted to for example 14 volts DC current.This DC current offers ECU30, petrolift 15 and miscellaneous equipment by ignition lock 23, and they form the required electric load of operation driving engine.
As shown in Figure 2, first relay 41 with transfer strip 41a open in usual is connected in the second circuit.Transfer strip 41a is connected in series to transfer strip 23b.First relay 41 also comprises screw actuator 41b, closed transfer strip 41a open in usual when it is switched on.By connecting ignition lock 23 ( transfer strip 23a, 23b are closed simultaneously), cell pressure is provided for screw actuator 41b.Be higher than predetermined level (as, 6-8 volt) if offer the cell pressure of screw actuator 41b, then first relay 41 is switched on.
Above-mentioned electric power supply system moves in the following manner.When cell pressure was higher than predetermined level, first relay 41 was switched on by closes ignition switch 23.Cell pressure offers ECU30 by first relay 41.Microcomputer 35 among the ECU30 is by cell pressure initialization and startup, and petrolift 15 is driven by the signal from microcomputer 35.Then, initial rotating torques is provided for driving engine 10, and fuel injector 13 and firing installation 17 are by the signal operation from ECU30 by foot-operated action (foot-operated startup).Like this, driving engine 10 is activated.
On the other hand, when cell pressure was lower than predetermined level, first relay 41 was not switched on by closes ignition switch 23.In this case, electric power does not offer ECU30 from battery 24.When passing through to ride start the engine, electric power is offered ECU30 from electrical generator 20.The electric power that is produced by electrical generator 20 is not provided for battery 24, because this moment, first relay 41 was open circuited.Therefore, the electric power of electrical generator 20 generations is offered ECU30 specially.When the power line voltage that offers microcomputer 35 reached predetermined level VCC, microcomputer 35 was initialised and starts.According to signal from microcomputer 35, petrolift 15, firing installation 17 and eductor 13 operations.Like this, driving engine 10 is activated.
After driving engine 10 started, the electric power that is produced by electrical generator 20 became enough high, to give battery 24 chargings.More specifically, second relay 42 is connected by microcomputer 35, thereby and offers battery 24 from the electric power of electrical generator by second relay 42.When battery 24 was recharged, the 3rd relay 43 was disconnected by microcomputer 35, thereby first relay 41 is disconnected.
The process of control battery charge will be explained with reference to diagram of circuit shown in Figure 3.At step S101, whether check engine starts.At step S102, judge whether the rotating speed of driving engine is enough high, to charge the battery.For example, if the rotating speed of driving engine is higher than 4000rpm, determine that then the speed of driving engine is high enough to charge the battery.If driving engine is not activated the speed of (S101) or driving engine not high enough (S102), then this process directly finishes.
At step S103, check whether second relay 42 disconnects and whether the 3rd relay 43 is connected.If the result of step S103 is a "Yes", then this process proceeds to step S104, judge that at step S104 cell pressure is lower than predetermined voltage Va (VB＜Va?).If cell pressure VB is lower than predetermined voltage Va, then this process proceeds to step S105, connects and 43 disconnections of the 3rd relay at step S105 second relay 42.This means that battery 24 is charged by second relay 42, and disconnect first relay 41 by disconnecting the 3rd relay 43.
At step S106, check that whether cell pressure VB is higher than another predetermined voltage Vb,, judges whether battery 24 is sufficiently charged that is.If battery 24 is sufficiently charged, then this process proceeds to step S107, disconnects and 43 connections of the 3rd relay at step S107 second relay 42.Like this, the charging by 42 pairs of batteries of second relay is terminated.If the result of step S103 is a "No", then this process is directly to step S106, because in this case, the charging of battery begins.If the result of step S104 and S106 is a "No", then this process directly finishes.
In traditional electric power supply system, a diode is provided, it prevents counter-current when cell pressure is low.Therefore, the loss in voltage of transdiode is inevitable.In the present invention, replace diode, first relay 41 is provided, it prevents counter-current when cell pressure is low.Therefore, avoided the loss in voltage of transdiode.
To sum up the advantage that the present invention obtains below.Since open circuited first relay 41 when cell pressure is low is provided, so when cell pressure was low, the electric power that electrical generator 20 produces was offered ECU30 and other electric load effectively, and not to battery 24 chargings.As mentioned above, owing to do not have to use the diode that prevents counter-current, so the loss in voltage of transdiode can be avoided.Therefore, the necessary electric power of start the engine is offered ECU30 and other electric load effectively.Because second relay 42 open in usual is connected according to the amount and the cell pressure of the electric power that electrical generator 20 produces, so battery is charged by electrical generator 20 effectively.Owing to disconnect first relay 41 by disconnecting the 3rd relay 43, battery 24 is only charged by electrical generator 20 by second relay of connecting 42.
The present invention is not limited to the foregoing description, and it can diversely be revised.For example, as shown in Figure 4, the 3rd relay 43 can be deleted.In the form of this modification, when cell pressure was higher than predetermined level, first relay 41 was switched on by closes ignition switch 23, and therefore, electric power is offered ECU30 and other electric load from battery 24.On the other hand, when cell pressure was lower than predetermined level, first relay 41 was not switched on by closes ignition switch 23.Second relay 42 keeps disconnecting.Electrical generator 20 keeps not being connected with battery 24, and therefore, battery 24 is not charged by electrical generator 20.Therefore, when cell pressure was low, electric power offered ECU30 and other electric load specially from electrical generator 20.Therefore, even when cell pressure is low, driving engine 10 also can successfully be started.
In modification shown in Figure 5, only used first relay, 41, the second relays 42 and the 3rd relay 43 all deleted.When cell pressure was higher than predetermined level, first relay 41 was switched on by closes ignition switch 23, and electric power offers ECU30 and other electric load from battery 24.When cell pressure was lower than predetermined level, first relay 41 was not switched on, and the electric power that electrical generator 20 produces is offered ECU30 and other electric load specially, and does not give battery 24 chargings.Therefore, even when cell pressure is low, driving engine also can successfully be started.Although among the embodiment in front, the operation of petrolift 15 is controlled by ECU30, and petrolift 15 can be driven when ignition lock 23 closures, rather than is controlled by ECU30.
Though the present invention is illustrated and illustrates with reference to the fwd preferred embodiment, ability in the technical personnel, be it is evident that, in the scope of the present invention that does not break away from claims and limited, can make amendment to its form and details.
Claims (5)
1, a kind of electric power supply system that is used for self-propelled vehicle comprises:
Electrical generator (20) is used for producing electric power according to the rotation of driving engine (10);
Battery (24) is used to store the electric power from described electrical generator;
Move the necessary electric load of described driving engine (30 etc.);
First circuit is used for described electrical generator (20) is connected to described electric load;
Second circuit is used for described first circuit is connected to described battery (24); And
Be arranged in first relay open in usual (41) in the described second circuit, wherein:
Described first circuit and described second circuit come closed by the ignition lock (23) that is switched on or switched off described driving engine or open; And
When the voltage of described battery (24) was higher than predetermined voltage, described first relay open in usual (41) was switched on.
2, electric power supply system as claimed in claim 1, wherein:
Described battery (24) is connected to described electrical generator (20) by second relay open in usual (42); And
When the voltage of described electrical generator (20) generation was higher than predetermined voltage level, described second relay open in usual (42) was switched on.
3, electric power supply system as claimed in claim 1 also comprises controller (35), wherein:
Described controller (35) monitors the generating state of described electrical generator (20); And
According to the supervision result of described controller (35), control described second relay open in usual (42).
4, as claim 2 or 3 described electric power supply systems, also comprise module (43 etc.), be used for when described second relay (42) is connected, disconnect described first relay (41).
5, a kind ofly be used for the method that the electric power of spontaneous motor (20) in the future offers on-vehicle battery (24) and moves the necessary electric load of driving engine (10) (30 etc.), wherein said electrical generator (20) is driven by the described driving engine (10) that is installed on the vehicle, this method may further comprise the steps, and these steps are carried out by following order:
Check the voltage of described battery (24);
The rotation of the described driving engine of initialization (10);
If the voltage of described battery (24) is lower than predetermined voltage, then will be from offered electric load (30 etc.) by the electric power of described engine-driven generator (20);
Start described driving engine (10) by operating described electric load, wherein electric power is offered described electric load from described electrical generator (20); And
After the electric power that described electrical generator produces reaches predetermined enough level,, the electric power that is produced by described electrical generator (20) to charge to described battery (24) by being provided.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2006014512A JP4670656B2 (en) | 2006-01-24 | 2006-01-24 | Vehicle power supply device |
| JP014512/2006 | 2006-01-24 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101007523A true CN101007523A (en) | 2007-08-01 |
| CN101007523B CN101007523B (en) | 2012-06-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200710003758 Active CN101007523B (en) | 2006-01-24 | 2007-01-24 | Power supply system for automobile |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP4670656B2 (en) |
| CN (1) | CN101007523B (en) |
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102356231A (en) * | 2009-03-20 | 2012-02-15 | 罗伯特·博世有限公司 | Circuit arrangement for starting an internal combustion engine and method for a starter control system |
| CN102438862A (en) * | 2009-04-15 | 2012-05-02 | 日产自动车株式会社 | Electric vehicle structure |
| CN103085667A (en) * | 2011-10-27 | 2013-05-08 | 现代自动车株式会社 | Main relay monitoring device and method for green vehicle |
| CN103182997A (en) * | 2011-12-29 | 2013-07-03 | 罗伯特·博世有限公司 | Line unit e.g. low impedance power cable, for electrical system voltage circuit i.e. starter circuit, of motor vehicle, has line section connected between two connection ends and comprising inductance portion |
| CN103781668A (en) * | 2011-09-08 | 2014-05-07 | 株式会社自动网络技术研究所 | Power feed control device |
| CN103895589A (en) * | 2010-10-28 | 2014-07-02 | 株式会社电装 | Vehicle-mounted electronic control apparatus |
| CN104024628A (en) * | 2011-11-15 | 2014-09-03 | 雷米科技有限责任公司 | Starter system |
| CN104175895A (en) * | 2013-05-23 | 2014-12-03 | 铃木株式会社 | Vehicle power system |
| CN104895724A (en) * | 2015-06-29 | 2015-09-09 | 周磊 | Circuit structure for starting system of internal combustion engine |
| CN105811556A (en) * | 2016-03-04 | 2016-07-27 | 隆鑫通用动力股份有限公司 | Electronic injection starting circuit of engine |
| CN107420242A (en) * | 2017-05-24 | 2017-12-01 | 内蒙古北方重型汽车股份有限公司 | Electric wheel mining vehicle starts voltage drop control circuit |
| CN113803183A (en) * | 2020-06-11 | 2021-12-17 | 科勒公司 | Engine system and method for starting engine |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JP5594174B2 (en) * | 2011-02-14 | 2014-09-24 | スズキ株式会社 | Power supply device for internal combustion engine |
| CN105811557A (en) * | 2016-03-04 | 2016-07-27 | 隆鑫通用动力股份有限公司 | Electronic injection circuit of engine |
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Cited By (22)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9869285B2 (en) | 2009-03-20 | 2018-01-16 | Robert Bosch Gmbh | Circuit configuration for starting an internal combustion engine and method of a starter control |
| CN102356231B (en) * | 2009-03-20 | 2014-06-11 | 罗伯特·博世有限公司 | Circuit arrangement for starting an internal combustion engine and method for a starter control system |
| CN102356231A (en) * | 2009-03-20 | 2012-02-15 | 罗伯特·博世有限公司 | Circuit arrangement for starting an internal combustion engine and method for a starter control system |
| CN102438862A (en) * | 2009-04-15 | 2012-05-02 | 日产自动车株式会社 | Electric vehicle structure |
| CN102438862B (en) * | 2009-04-15 | 2014-05-07 | 日产自动车株式会社 | Electric vehicle structure |
| CN103895589A (en) * | 2010-10-28 | 2014-07-02 | 株式会社电装 | Vehicle-mounted electronic control apparatus |
| CN103895589B (en) * | 2010-10-28 | 2016-06-01 | 株式会社电装 | Car-mounted electronic control device |
| CN103781668B (en) * | 2011-09-08 | 2016-06-01 | 株式会社自动网络技术研究所 | Electric power apparatus for controlling of supply |
| CN103781668A (en) * | 2011-09-08 | 2014-05-07 | 株式会社自动网络技术研究所 | Power feed control device |
| CN103085667A (en) * | 2011-10-27 | 2013-05-08 | 现代自动车株式会社 | Main relay monitoring device and method for green vehicle |
| CN103085667B (en) * | 2011-10-27 | 2016-06-08 | 现代自动车株式会社 | The main relay monitoring device of green vehicle and method |
| CN104024628B (en) * | 2011-11-15 | 2016-08-24 | 雷米科技有限责任公司 | Starting system |
| CN104024628A (en) * | 2011-11-15 | 2014-09-03 | 雷米科技有限责任公司 | Starter system |
| CN103182997A (en) * | 2011-12-29 | 2013-07-03 | 罗伯特·博世有限公司 | Line unit e.g. low impedance power cable, for electrical system voltage circuit i.e. starter circuit, of motor vehicle, has line section connected between two connection ends and comprising inductance portion |
| CN104175895A (en) * | 2013-05-23 | 2014-12-03 | 铃木株式会社 | Vehicle power system |
| CN104175895B (en) * | 2013-05-23 | 2016-09-07 | 铃木株式会社 | Vehicle power source device |
| CN104895724A (en) * | 2015-06-29 | 2015-09-09 | 周磊 | Circuit structure for starting system of internal combustion engine |
| CN105811556A (en) * | 2016-03-04 | 2016-07-27 | 隆鑫通用动力股份有限公司 | Electronic injection starting circuit of engine |
| CN107420242A (en) * | 2017-05-24 | 2017-12-01 | 内蒙古北方重型汽车股份有限公司 | Electric wheel mining vehicle starts voltage drop control circuit |
| WO2018214469A1 (en) * | 2017-05-24 | 2018-11-29 | 内蒙古北方重型汽车股份有限公司 | Circuit for controlling activation voltage drop of electric-drive mining vehicle |
| CN107420242B (en) * | 2017-05-24 | 2019-04-16 | 内蒙古北方重型汽车股份有限公司 | Electric wheel mining vehicle starts voltage drop control circuit |
| CN113803183A (en) * | 2020-06-11 | 2021-12-17 | 科勒公司 | Engine system and method for starting engine |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2007198146A (en) | 2007-08-09 |
| CN101007523B (en) | 2012-06-20 |
| JP4670656B2 (en) | 2011-04-13 |
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