CN202628356U - Auxiliary starting device of automobile engine - Google Patents

Auxiliary starting device of automobile engine Download PDF

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Publication number
CN202628356U
CN202628356U CN2012202764868U CN201220276486U CN202628356U CN 202628356 U CN202628356 U CN 202628356U CN 2012202764868 U CN2012202764868 U CN 2012202764868U CN 201220276486 U CN201220276486 U CN 201220276486U CN 202628356 U CN202628356 U CN 202628356U
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China
Prior art keywords
relay
relay normally
voltage
dc
connected
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CN2012202764868U
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Chinese (zh)
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汤如法
汤宇峰
许世英
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汤如法
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Priority to CN2012202764868U priority Critical patent/CN202628356U/en
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Publication of CN202628356U publication Critical patent/CN202628356U/en

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Abstract

The utility model provides an auxiliary starting device of an automobile engine; and the device belongs to the technical field of engines. The auxiliary starting device of the automobile engine solves the problem of the prior art that the engine cannot be started normally due to the reduction of the amount of the electricity of a storage battery. The device is connected with the storage battery, and comprises a starter, a starting relay, a super capacitor, a conversion circuit and a direct current/direct current (DC/DC) converter; the input end of the DC/DC converter is connected with the positive pole of the storage battery; when the starting relay is disconnected, the super capacitor, the DC/DC converter and the negative pole of the storage battery form a charging loop; meanwhile, the positive pole of the storage battery is connected with the starting relay and the starter through the conversion circuit to form a backup initial starting loop; when the starting relay is connected, the conversion circuit disconnects the charging loop and the backup initial starting loop; and the positive pole of the super capacitor is connected with the starting relay through the conversion circuit, and the negative pole of the super capacitor is connected with the storage battery through the conversion circuit to form a boosting starting loop. The auxiliary starting device of the automobile engine can stabilize and improve the starting performance of the engine when the voltage of the storage battery is reduced.

Description

A kind of auxiliary actuating apparatus of vehicle motor

Technical field

The utility model belongs to technical field of engines, relates to a kind of engine start auxiliary device.

Background technique

As everyone knows; The inside D.C. resistance of storage battery changes with the Environmental Conditions of ambient temperature and battery, and the output capacity of storage battery also changes, especially winter temperature at subzero 25 degree when following; The capacity of battery descends significantly, causes the output voltage of battery also can decrease.In addition, vehicle load is the equipment that vehicle is worked always, routine air-conditioning, and sound equipment and car light etc. all can further cause storage voltage to descend.

When the engine start of automobile or motorcycle, at first need powered battery to start to actuating motor, but along with above-mentioned reason causes battery tension decline and cause starting difficulty.When the transient current that its reason is an actuating motor when starting needs normal rotation at ordinary times several times of rated current, the instantaneous voltage of storage battery also declines to a great extent, and it is very poor that accumulator property also becomes, and so high-multiplying power discharge also causes bigger damage to storage battery.

For this reason, adopted capacitor parallelly connectedly with storage battery in the prior art, capacitor is shared most of electric current of storage battery when battery discharging, thereby plays protection and prolong life-span of storage battery.Like the Chinese patent publication number is the disclosed a kind of automobile auxiliary actuating apparatus of CN201025205, and this device comprises the super capacitor group, and said super capacitor group is parallelly connected with car accumulator.Said super capacitor group forms by a plurality of super capacitors are monomer series-connected, is perhaps formed by a plurality of super capacitor monomer elder generation's parallel connections and then tandem compound.The both positive and negative polarity of said super capacitor group can be directly connected to the both positive and negative polarity of said storage battery or pass through cigarette lighter parallelly connected with storage battery through lead.The automobile auxiliary actuating apparatus of the utility model can strengthen the startup ability of automobile, but also good filtering voltage regulation effect can be provided for the electrical equipment in the automobile.

But, though super capacitor is connected in parallel on the starting performance that can prolong the life of storage battery on the storage battery and motor is provided, still there is following defective:

Adopted ultracapacitor parallelly connectedly with storage battery in the prior art, ultracapacitor voltage must be a little more than battery tension.Because technological reason, the rated operational voltage of single super capacitor are generally about 2.5V to 2.7V, so in application, need much only to connect use.For example,, suppose that ultracapacitor needs 50V25F with ultracapacitor and in the 48V battery of electric vehicle for increasing starting capacity, by single 2.5V super capacitor series connection, formula:

Total voltage=each series capacitor voltage with,

Be E=V1+V2+V3

The inverse of total capacitance=each series electrical capacity reciprocal with

Be 1/CT=1/C1+1/C2+

Reach the 50V25F ultracapacitor and then need 2.5V500F totally 20 series connection.In application, need a large amount of series connection, this brings great test to volume, cost.

Owing to often need high current charge-discharge in using, on each monolithic capacitor in the series connection voltage whether consistent be vital.Because each ultracapacitor monomer capacity of series loop is difficult to guarantee that 100% is identical; Be difficult to also guarantee that each monomer electric leakage is also identical; Will cause each monomer charging voltage of series loop different like this; May cause the capacitor overvoltage to damage, the number of elements solve problem of therefore taking more to connect is worthless.

Secondly, be the reliability that guarantees to be connected in series, every ultracapacitor must add equalizer circuit, also is that super capacitor uses the problem that needs most attention.In order to reduce the pressure equalizing circuit supercapacitor leakage current, generally preclude the use of electronic equalization circuitry, super capacitor in series with only the more, the more complex the circuit, the greater the volume, the cost is also higher.

Summary of the invention

There are the problems referred to above in the utility model to existing technology; A kind of engine starting gear has been proposed; This engine starting gear can improve the working life of storage battery; Motor starting characteristic when stabilizing and increasing battery tension decline, circuit structure is simple, if this starting drive damages the normal startup that does not also influence original motor.

The utility model is realized through following technical proposal: a kind of auxiliary actuating apparatus of vehicle motor; Be connected with storage battery; Comprise starter motor that is connected with engine mechanical and the starter relay that is used to control the starter motor rotation; It is characterized in that; This auxiliary starting device comprises ultracapacitor, change-over circuit and is used for big current conversion is the DC/DC transducer of little electric current and voltage variable; The input end of DC/DC transducer is connected with battery positive voltage, the anodal DC/DC converter output terminal that connects of described ultracapacitor when starter relay breaks off, and super capacitor anode connects battery terminal negative through above-mentioned change-over circuit and forms charge circuit; Battery positive voltage connects starter relay, starter motor formation preparation initial start loop through change-over circuit simultaneously; Above-mentioned change-over circuit breaks off charge circuit and preparation initial start loop when described starter relay is connected, and the positive pole of ultracapacitor connects starter relay through change-over circuit, and the negative pole of ultracapacitor connects battery positive voltage through change-over circuit and forms supercharging and start the loop.

The utility model mainly embodies ultracapacitor design in replenishing voltage and low current charge, during starting after ultracapacitor and the two voltage additions of existing storage battery, with the purpose of big electric current quick starting.Therefore ultracapacitor voltage is not high, and its volume can be done little, then this device is reduced volume and is benefited with reducing cost to bring greatly.

The auxiliary actuating apparatus of this vehicle motor is before engine start and behind the engine start; The starter relay that is connected in the loop breaks off; The ultracapacitor positive pole connects with battery positive voltage through the DC/DC transducer; Its negative pole is connected to form the loop through change-over circuit and battery terminal negative, and the big current conversion that storage battery is exported storage battery through the DC/DC transducer is that little electric current charges to ultracapacitor, is full of until super capacitor.Battery positive voltage connects starter relay formation preparation initial start loop through change-over circuit again simultaneously.When engine start; It is closed that the coil of starting relay gets the electric starter relay that makes, change-over circuit commentaries on classics startup, and ultracapacitor is connected between battery positive voltage and the starter relay it through change-over circuit; Form supercharging and start the loop; The voltage that makes storage battery and ultracapacitor is Calais's ato unit mutually, has improved the voltage of original storage battery, and change-over circuit makes ultracapacitor change charged state when finishing to starting; Storage battery connects starter relay through change-over circuit again and forms preparation initial start loop, prepares for starting once more.Therefore, when storage battery causes voltage to descend because of cold weather is perhaps aging, also can normally start, improve starting efficiency because of the extra voltage that provides of ultracapacitor.

In the auxiliary actuating apparatus of above-mentioned vehicle motor; Described change-over circuit comprise unilateral diode, can with the first relay normally-closed contact, the second relay normally-closed contact and first relay normally open contact of starter relay synchronization motion; The first above-mentioned relay normally-closed contact is connected between said battery positive voltage and the starter relay; The connected node of the first relay normally-closed contact and starter relay is a first node; The first above-mentioned relay normally open contact is connected between the negative pole of said battery positive voltage and ultracapacitor; The second above-mentioned relay normally-closed contact is connected between the negative pole and battery terminal negative of said ultracapacitor, and the anode of said unilateral diode connects the positive pole of said ultracapacitor, and the negative electrode of unilateral diode is connected on the above-mentioned first node.Unilateral diode prevents that storage battery directly charges to ultracapacitor.The first relay normally-closed contact is closed, and storage battery, starting relay and starter motor constitute preparation initial start loop; Closed and first relay normally open contact disconnection of the second relay normally-closed contact, storage battery, DC/DC transducer and ultracapacitor constitute charge circuit; First relay normally open contact is closed, and other contacts are broken off, and storage battery, ultracapacitor, starting relay, starter motor constitute supercharging and start the loop.

In the auxiliary actuating apparatus of above-mentioned vehicle motor; Be serially connected with the current probe that can detect the starter motor electric current between described first node and the starter relay; The current probe signal end is connected with relay control unit; Be provided with in the described relay control unit and can control the driving relay that the first relay normally-closed contact, the second relay normally-closed contact and first relay normally open contact move simultaneously; Send to relay control unit after current probe detects starter motor electric current and changing voltage when starter relay is closed; This actuating of relay of relay control unit instruction; Control the disconnection of the first relay normally-closed contact and the second relay normally-closed contact and the closure of first relay normally open contact, this relay electric-loss resets the first relay normally-closed contact, the second relay normally-closed contact and first relay normally open contact during driving voltage that the signal that sends at current probe sets less than relay control unit.

In the auxiliary actuating apparatus of above-mentioned vehicle motor; This auxiliary actuating apparatus has comprised the input pile crown that is used to connect anode, connection the output pile crown and the negative pole pile crown that is used to be connected GND that is used to connect starter motor, and said input pile crown is the common joint of DC/DC transducer input end, the first relay normally-closed contact and first relay normally open contact; Said output pile crown is the output terminal of current probe; Said negative pole pile crown is the common joint of the second relay normally-closed contact and relay control unit negative pole.Can fast this auxiliary actuating apparatus be installed through input pile crown, output pile crown and negative pole pile crown, the personnel that need not specialty install.

In the auxiliary actuating apparatus of above-mentioned vehicle motor; Described relay control unit also is provided with voltage detection module, given voltage module and circuit control device; Voltage detection module is used to detect the current voltage of storage battery and forms feedback voltage and flows to the circuit control device; The difference that the circuit control device calculates feedback voltage and setting voltage forms given voltage; The circuit control device is sent to given voltage in the given voltage module, the given voltage module control DC/DC transducer output voltage identical with given magnitude of voltage.The circuit control device is provided with setting voltage in advance according to the storage battery voltage rating of vehicle.Storage battery does not wait according to consuming or just being full of electric voltage, is detected by voltage detection module, and its feedback voltage compares the back by the implementation of circuit control device with setting voltage is set in advance, sends into given voltage module and draws given voltage.

In the auxiliary actuating apparatus of above-mentioned vehicle motor, the said first relay normally-closed contact two ends are parallel with diode, and the anode of said diode is connected with the first relay normally-closed contact input end, and the negative electrode of diode is connected with first node.

A DC / DC converter in a first solution, the above vehicle engine starting aid apparatus, said DC / DC converter comprises a unidirectional or bidirectional chopper switching circuits and switching inverter conversion element, a single or bi-directional inverter chopper type switching converter circuit switching element is connected, the switching output of conversion circuit 13a for DC / DC converter 2 output terminal, unidirectional or bidirectional inverter chopper switching circuits preclude the use of constant Constant pressure flow control.

A DC / DC converter of the second solution, the above vehicle engine starting aid apparatus, said DC / DC converter includes a linear type of voltage control circuit and a DC conversion element, a linear type of voltage control circuit and the DC transform element is connected, linear-type voltage control circuit preclude the use of constant current constant voltage control.

At the DC/DC transducer is under the situation of second kind of scheme; In the auxiliary actuating apparatus of above-mentioned vehicle motor; Described ultracapacitor comprise first super capacitor and second super capacitor and with the 3rd relay normally-closed contact, second relay normally open contact, the 3rd relay normally open contact of starting relay synchronization motion; Connect through the 3rd relay normally-closed contact between said first super capacitor and second super capacitor; The positive pole of said first super capacitor connects second relay normally open contact upper end; The second relay normally open contact lower end connects the positive pole of second super capacitor, and the negative pole of said first super capacitor connects the 3rd relay normally open contact upper end, and the 3rd relay normally open contact lower end connects the negative pole of second super capacitor; Said ultracapacitor the 3rd relay normally-closed contact when starter relay breaks off is closed; Second relay normally open contact, the 3rd relay normally open contact are for separating, and first super capacitor becomes to be connected in series with second super capacitor, and said ultracapacitor the 3rd relay normally-closed contact when starter relay is closed is separately; Second relay normally open contact, the 3rd relay normally open contact are closed, and first super capacitor becomes to be connected in parallel with second super capacitor.Through above-mentioned structure is to realize reducing the charging current of super capacitor or accelerate charging rate.

Compared with prior art, the auxiliary actuating apparatus of this vehicle motor has following advantage:

1, utilize the storage battery of vehicle itself to pass through the DC/DC transducer to the slow low current charge of ultracapacitor; Can improve the working life of storage battery like this; Because generally when ultracapacitor charged, the charging current of ultracapacitor will be much larger than the charging current of storage battery.Simultaneously when vehicle launch; The series connection of storage battery and ultracapacitor and voltage addition are to the starter motor heavy-current discharge; Starting power greatly is provided,, has solved that the cold snap battery tension descends and the starting difficulty phenomenon that causes especially in winter; Be applicable to degradation occasion under the aging electric weight of storage battery, also can prolong the working life of storage battery.

2, the utility model DC / DC converter also based supercapacitor capacity size, large capacity if supercapacitor charging current is also large, DC / DC converter voltage conversion preclude the use of a small gap between the linear constant current constant voltage circuit, with its precision high, simple structure, low failure rate.If the super capacitor capacity is small, the charging current is also small, DC / DC converter voltage conversion preclude the use of a large gap between the inverter switching constant current constant voltage circuit, with its small size and high efficiency.

3, do not change each component leads in " vehicle load " body, only break off battery anode pile head and be connected in series this auxiliary actuating apparatus with former line end and get final product.Generally " vehicle load " battery circumferential all has certain spatial position; Do not need specialty loading and unloading and training; Has advantage easy to loading and unloading, that maintenance difficulty is low; Simultaneously elements such as the ultracapacitor of the utility model, relay are in operation and damage or circuit is failure to actuate and is not influenced original vehicle proper functioning, and protection is high.

Description of drawings

Fig. 1 is the schematic block circuit diagram of the auxiliary actuating apparatus of the utility model vehicle motor.

Fig. 2 is the concrete structure circuit diagram of the auxiliary actuating apparatus of the utility model vehicle motor.

Fig. 3 is the automatically controlled circuit diagram of the auxiliary actuating apparatus of the utility model vehicle motor.

Fig. 4 is optimized circuit figure on the basis of Fig. 3.

Fig. 5 is the theory diagram of DC/DC transducer in the auxiliary actuating apparatus of the utility model vehicle motor.

Fig. 6 is DC/DC converter principle block diagram and ultracapacitor circuit figure in the auxiliary actuating apparatus of the utility model vehicle motor.

Among the figure, 1, storage battery; 2, DC/DC transducer; 3, ultracapacitor; 4, the second relay normally-closed contact; 5, the first relay normally-closed contact; 6, first relay normally open contact; 7, unilateral diode; 8, current probe; 9, vehicle load; 9a, starter relay; 9b, starter motor; 9c, other parts of vehicle; 10, relay control unit; 11, voltage detection module; 12, given voltage module; 13a, switch change-over element; 13b, DC converting element; 14, one-way type or two-way type inversion chopping switch circuit; 15, lienar for voltage control circuit; 16, second relay normally open contact; 17, the 3rd relay normally open contact; 18, the 3rd relay normally-closed contact; 19, first super capacitor; 20, second super capacitor; 21, diode; 22, battery positive voltage; 23, input pile crown; 24, output pile crown; 25, former line end; 26, GND; 27, negative pole pile crown.

Embodiment

Below be the specific embodiment of the utility model, and combine accompanying drawing that the technological scheme of the utility model is done further to describe, but the utility model is not limited to these embodiments.

Embodiment 1:

Like Fig. 1 is a kind of auxiliary actuating apparatus of vehicle motor; Be connected with storage battery 1; Comprise starter motor 9b that is connected with engine mechanical and the starter relay 9a that is used to control starter motor 9b rotation; Other parts of vehicle 9c is parallelly connected with starter motor 9b and starter relay 9a, and vehicle other parts 9c and starter constitute vehicle load 9 jointly, and this starter storage battery 1 is used for start unit and other parts of vehicle 9c power supply.

This auxiliary actuating apparatus comprises ultracapacitor 3, change-over circuit and is used for big current conversion is the DC/DC transducer 2 of little electric current and voltage variable; The input end of DC/DC transducer 2 and 1 anodal connection of storage battery; Ultracapacitor 3 anodal DC/DC transducer 2 output terminals that connect when starter relay 9a breaks off; Ultracapacitor 3 negative poles are connected storage battery 1 negative pole through change-over circuit and form charge circuit; Storage battery 1 is anodal through change-over circuit connection starter relay 9a, starter motor 9b formation preparation initial start loop simultaneously; Change-over circuit broke off its charge circuit and preparation initial start loop when described starter relay 9a connected, and the positive pole of ultracapacitor 3 connects starter relay 9a through change-over circuit, and the negative pole of ultracapacitor 3 connects through change-over circuit that storage battery 1 is anodal to be formed supercharging and start the loop.

Specifically; As shown in Figure 2; Change-over circuit comprise unilateral diode 7, can with the first relay normally-closed contact 5, the second relay normally-closed contact 4 and first relay normally open contact 6 of starter relay 9a synchronization motion; The first relay normally-closed contact 5 is connected between storage battery 1 positive pole and the starter relay 9a; The first relay normally-closed contact 5 is a first node with the connected node of starter relay 9a, and first relay normally open contact 6 is connected between the negative pole of storage battery 1 positive pole and ultracapacitor 3, and the second relay normally-closed contact 4 is connected between the negative pole and storage battery 1 negative pole of ultracapacitor 3; The anode of unilateral diode 7 connects the positive pole of ultracapacitor 3, and the negative electrode of unilateral diode 7 is connected on the first node.

Under normal state; Storage battery 1 is supplied power to other vehicle load 9c through the first relay normally-closed contact 5; Storage battery 1 is connected to form preparation initial start loop with starter relay 9a simultaneously, and storage battery 1 forms charge circuit through 3 chargings of 2 pairs of ultracapacitors of DC/DC transducer.When starting, connect the coil of starter relay 9a, make the normally opened contact of starter relay 9a closed; Change-over circuit is changed simultaneously; Break off the first relay normally-closed contact 5 and the second relay normally-closed contact 4, connect first relay normally open contact 6, storage battery 1 anodal first relay normally open contact, 6 closures of passing through are connected with ultracapacitor 3 negative poles; Ultracapacitor 3 anodal unilateral diode 7 anodes that connect; Unilateral diode 7 negative electrodes connect starter relay 9a, and starter relay 9a connects starter motor 9b, form to start the loop.This makes the voltage of storage battery 1 be connected in series mutually with the voltage of ultracapacitor 3 and increases, and is applied on the inner starter motor 9b of vehicle load 9 through unilateral diode 7, reaches the purpose of big capacity quick starting, makes that vehicle is smooth and easy to be started.Comparing with the existing voltage condition that only applies storage battery 1 has higher voltage, reaches bigger starting capacity, has greatly improved starting performance.

After the startup; Starter relay 9a breaks off; The change-over circuit conversion; The first relay normally-closed contact, 5 closures, 4 closed and first relay normally open contact, 6 disconnections of the second relay normally-closed contact, storage battery 1 charges to ultracapacitor 3 through DC/DC transducer 2, and storage battery 1 also can recover to prepare the initial start loop to other parts of vehicle 9c power supply and starter motor 9b through the first relay normally-closed contact 5.

Voltage descends the voltage of ultracapacitor 3 owing to the discharge of vehicle load 9 internal triggering machine 9b, but can charge once more through DC/DC transducer 2.In addition, in the time of can also passing through vehicle driving, vehicle load 9 interior vehicle other parts 9c such as generator for electricity generation recharge to ultracapacitor 3, and the energy storage of ultracapacitor 3 is used power of regeneration effectively when restarting next time to be used as.

Storage battery 1 can cause electric weight to descend in multiple reason, as forgets that closing car light waits for bus under the situation such as a load consumption electric power, and storage battery 1 voltage decline motor also can make engine start in the time of can't starting.The energy that is about to storage battery 1 charges into ultracapacitor 3, and after-applied to starter motor 9b with storage battery 1 voltage addition, and only uses the vehicle of storage battery 1 to compare usually, the motor starting characteristic in the time of can improving battery decline.

During vehicle load 9 internal triggering machine 9b starting; Big big electric current 1-3 moment second to thousands of peaces passes through, but ultracapacitor 3 can pass through time of tens of times carry out low current charge just can, realized heavy-current discharge; Little electric current charges into, and has realized the miniaturization of engine starting gear.For example, in a 48V electric car batteries, ultracapacitors three strings on the 48V battery electric vehicles, because both series discharge, supercapacitors three capacity options with an identical battery discharge, preclude the use of ultracapacitors 5V? 50F and electric vehicle 53V 48V batteries in series is equal to start reducing the pressure drop when starting, to achieve a greater starting capacity.5V 50F ultracapacitor is as long as 2 2.5V 100F connect, and 1/10th electric currents just can achieve the goal in the time of can selecting to start and charge.

Embodiment 2:

Of Fig. 3, Fig. 3 has increased relay control unit 10 on the basis of Fig. 2, is used to realize the automatic conversion of change-over circuit.In relay control unit 10, be provided with and control the driving relay that the first relay normally-closed contact 5, the second relay normally-closed contact 4 and first relay normally open contact 6 move simultaneously; Be serially connected with the current probe 8 that can detect starter motor 9b electric current between first node and the starter relay 9a; Current probe 8 signal ends are connected with relay control unit 10; Send to relay control unit 10 after current probe 8 detects starter motor 9b electric current and changing voltage when starter relay 9a is closed; Relay control unit 10 these actuatings of relay of instruction; Control the disconnection of the first relay normally-closed contact 5 and the second relay normally-closed contact 4 and the closure of first relay normally open contact 6, this relay electric-loss resets the first relay normally-closed contact 5, the second relay normally-closed contact 4 and first relay normally open contact 6 during driving voltage that the signal that sends at current probe 8 sets less than relay control unit 10.

When engine start; Inrush current increases; Current probe 8 detects and sends behind starter motor 9b electric current and the changing voltage to relay control unit 10 and instruct this actuating of relay; Control the first relay normally-closed contact 5 and the second relay normally-closed contact, 4 disconnection and first relay normally open contact, 6 closures; And recover normal current to above-mentioned starter motor 9b electric current, when starter motor 9b electric current was less than the driving voltage that relay control unit 10 sets, relay resetted and makes the first relay normally-closed contact 5 and 4 closed and first relay normally open contact, 6 disconnections of the second relay normally-closed contact.Can realize the conversion of ultracapacitor 3 discharge conditions and charged state through the change-over circuit of this automatic control; Utilize the signal code that detects starter motor 9b inrush current and produce to move as driving relay; Simplify circuit structure, improved utilization ratio.Current probe 8 resistance capable of using or utilize Hall Ie as detecting electric current.

Relay control unit 10 also is provided with voltage detection module 11, given voltage module 12 and circuit control device.The circuit control device is provided with setting voltage in advance according to the storage battery voltage rating of vehicle.Voltage detection module 11 is responsible for detecting the current voltage of storage battery 1, forms feedback voltage, flows to the circuit control device.The circuit control device calculates the difference of feedback voltage and setting voltage, forms given voltage.The circuit control device is sent to given voltage in the given voltage module 12.The given voltage module control DC/DC transducer 2 outputs voltage identical with given magnitude of voltage.

Before the motor initial start; Need the voltage of configuration ultracapacitor 3 according to various types of vehicles load storage battery 1; In the circuit control device of relay control unit 10 set inside, regulate setting voltage, storage battery 1 according to consumed or just be full of the electricity voltage do not wait, detect by voltage detection module 11; Its feedback voltage with setting voltage is set in advance compares the back and carry out by control device; Send into given voltage module 12 and draw given voltage,, make needed ultracapacitor 3 charging voltages of DC/DC transducer 2 outputs given voltage input DC/DC transducer 2.When ultracapacitor 3 was full of according to required voltage, given voltage module 12 instructed DC/DC transducer 2 to quit work again.

For example automobile is a 12V storage battery 1; For increasing starting capacity; Require the starting open circuit voltage of starter motor 9b to set 15V, storage battery 1 has consumed at present has only 10V, then draws ultracapacitor 3 after relatively and is the 5V charging voltage; The cell voltage that and for example just has been full of electricity is 12.5V, and then relatively back super capacitor 3 should draw the 2.5V charging voltage.

As stated, if apply the maximum voltage that reaches in storage battery 1 range of nominal tension when starter motor 9b start, then can improve the starting torque of starter motor 9b, so can improve the starting performance of motor.

Embodiment 3:

Embodiment 3 increases to improve on embodiment 2 basis; As shown in Figure 3; This auxiliary actuating apparatus comprises input pile crown, connection output pile crown and the negative pole pile crown that is used to connect anode, and said input pile crown 23 is the common joint of DC/DC transducer 2 input ends, the first relay normally-closed contact 5 and first relay normally open contact 6; Said output pile crown 24 is the output terminal of current probe 8; Said negative pole pile crown 27 is the common joint of the second relay normally-closed contact 4 and relay control unit 10 negative poles.As long as the anode pile head 22 that leads to former line end 25 of battery 1 anode pile head and battery 1 of vehicle load 9 is broken off; Be connected to the output pile crown 24 of this enforcement; Storage battery 1 anode pile head 22 is connected with the input pile crown 23 of this enforcement in addition with a short and thick lead, again fine wire with GND 26 (public ground strap) just be connected with this enforcement negative pole pile crown 27 can, owing to the periphery of Vehicular battery 1 all has certain spare bits amount; This enforcement is installed arbitrarily; Need not change or draw vehicle load 9 other parts C lines, also need not special messenger's training, install and unload, popularized using scope greatly.

Embodiment 4:

Embodiment 4 is the improvement that on embodiment 2 or embodiment's 3 basis, increase; As shown in Figure 4; The first relay normally-closed contact, 5 two ends are parallel with diode 21, and the anode of said diode 21 is connected with the first relay normally-closed contact, 5 input ends, and 21 negative electrode is connected with first node.During startup; The voltage of storage battery 1 and ultracapacitor 3 is owing to first relay normally open contact, 6 closed stacks; To vehicle load 9 internal triggering machine 9b discharge, the electric charge of ultracapacitor 3 is because the current discharge of starter motor 9b and voltage descends through current detecting part 8, if when the voltage of ultracapacitor 3 drops to zero volt; When starter motor 9b still has electric current to pass through; Because of the circuit Central Plains first relay normally-closed contact 5 has separated, still under closure, the loop through unilateral diode 7, current probe 8 and starter motor 9b is to ultracapacitor 3 reverse chargings through first relay normally open contact 6 for the electric current of storage battery 1.And the first relay normally-closed contact 5 and connect diode 21 after, ultracapacitor 3 does not have backward voltage because of the clamp that diode 21 is arranged, and effectively protects ultracapacitor 3.Because if ultracapacitor 3 is when having reverse charge, starter motor 9b then becomes the current path of ultracapacitor 3, and then still performance is disadvantageous starting then to starter motor 9b, and after having connect diode 21, starter motor 9b is continued to have opened path through electric current.

The diode 21 and the first relay normally-closed contact 5 also connect; The first relay normally-closed contact 5 is storage battery 1 when vehicle driving at ordinary times and the path of vehicle load 9 inner other load 9c; If begin electric current when needing starting through the first relay normally-closed contact 5, treat that starting current detects the setting range of storage battery 1 after, the first relay normally-closed contact was opened in 5 minutes; Storage battery 1 is after-applied in starter motor 9b with the voltage addition of ultracapacitor 3, and starting current is to flow through through unilateral diode 7.Treat that starter motor 9b returns to behind the normal current just closed reductions of the first relay normally-closed contact 5.Storage battery 1 anodal with starter motor 9b between be connected in series the first relay normally-closed contact 5; Again and connect a diode 21 and make duplicate protection; The first relay normally-closed contact 5 all is in channel status when flat; If this device has been installed in the vehicle as need not or this facility circuit damage and relay normally-closed contact 5 is failure to actuate, do not influence the proper functioning of vehicle load 9, though behind the first relay normally-closed contact, 5 proceed-to-sends because of perhaps this burning of contact of the not closed reduction of circuit malfunction; Diode 21 becomes the path of battery 1 and vehicle load 9, has ensured effectively that still vehicle normally moves.

Embodiment 5:

Fig. 5 Fig. 6 describes the utility model embodiment 4: the capacity of battery of 12 volts, 24 volts configuration of automobiles of example is big; Generally all more than 60 ampere-hours, its inrush current is also very big, sometimes above more than 10 times; Pressure drop is very big during startup, and the big charging current of super capacitor capacity of configuration is also very big.But the storage battery of 36V, 48V electric motor car configuration, then generally all below 25 ampere-hours, inrush current has only about 2 times capacity, and the little charging current of super capacitor capacity of configuration is also little.Comprehensive above-mentioned reason, the DC/DC transformer configuration is selected: the little charging current of capacity of super capacitor is little, and perhaps DC/DC transducer conversion pressure reduction is big, adopts inversion chopper-type constant current constant pressure switch circuit; The big charging current of capacity of super capacitor is big, and perhaps DC/DC transducer conversion pressure reduction is little, adopts lienar for constant current level pressure DC circuit.

Embodiment 5 is the further improvement to embodiment 4; Like Fig. 5; Described DC/DC transducer 2 comprises one-way type or two-way type inversion chopping switch circuit 14 and switch transformed circuit 13a; One-way type or two-way type inversion chopping switch circuit 14 are connected with switch transformed circuit 13a, and the output terminal of switch transformed circuit 13a is the output terminal of DC/DC transducer 2.If this device is used in batteries 36V, 12A / n electric car, the super capacitor 3 hypothesized that the increased voltage is 5V voltage in series with the battery for the electric vehicle 1 starting engine, DC / DC converter 2 output voltage of the input voltage of 36V and 5V conversion greater pressure, but super capacitor 3 charging current is small, one-way or two-way type inverter chopper type switching circuit 14 preclude the use of the constant current constant voltage control, with high conversion efficiency, low power consumption, small size, low cost .

Embodiment 6:

Example 6 is another modification of the fourth embodiment, FIG 6, wherein the DC / DC converter 2 includes a linear type voltage control circuit 15 and a DC conversion element 13b, the linear type voltage control circuit 15 connected to the DC conversion element 13b, Linear type voltage control circuit 15 preclude the use of constant current constant voltage control.It is big to be used in capacity of super capacitor, and charging current is also big, the little circuit of DC/DC transducer 2 voltage of transformation gaps.

In order further to reduce charging current and to keep the duration of charge constant, series connection during with ultracapacitor 3 chargings is during startup and linked method.The described ultracapacitor 3 of Fig. 6 comprise first super capacitor 19 and second super capacitor 20 and with the 3rd relay normally-closed contact 18 of starting relay synchronization motion, second relay normally open contact 16, the 3rd relay normally open contact 17; Connect through the 3rd relay normally-closed contact 18 between said first super capacitor 19 and second super capacitor 20; The positive pole of said first super capacitor 19 connects second relay normally open contact, 16 upper ends; Second relay normally open contact, 16 lower ends connect the positive pole of second super capacitor 20; The negative pole of said first super capacitor 19 connects the 3rd relay normally open contact 17 upper ends; The 3rd relay normally open contact 17 lower ends connect the negative pole of second super capacitor 20; Said ultracapacitor 3 the 3rd relay normally-closed contact 18 when starter relay 9a breaks off is closed; Second relay normally open contact 16, the 3rd relay normally open contact 17 are for separately, and first super capacitor 19 is connected in series for 20 one-tenths with second super capacitor, and said ultracapacitor 3 the 3rd relay normally-closed contact 18 when starter relay 9a is closed is to separate; Second relay normally open contact 16, the 3rd relay normally open contact 17 are closed, and first super capacitor 19 is connected in parallel for 20 one-tenth with second super capacitor.Also can realize accelerating the charging rate of super capacitor through above-mentioned structure.

This ultracapacitor 3 is used in the automobile of 12 volts of 100A/h of battery; Because of starting current times big; Ultracapacitor 3 fruits establish increase 5V voltage and battery 1 Voltage Series is mobilized vehicle-mounted starter 9b; In order to improve the conversion efficiency of linear power supply, reduce two voltage differences of DC/DC converter 2, it is 10V that ultracapacitor 3 is divided into two groups of serial connection charges; DC/DC be 10V conversion pressure reduction the charging continuous current can be reduced half less, linear power supply is with characteristics such as its precision are high, simple in structure, fault rate is low.

Embodiment 7:

Embodiment 7 is identical with embodiment 1, and difference is that said change-over circuit can adopt converting circuit structure as shown in Figure 1, is the throw over switch of DPDT.In order to realize automatic control, can the throw over switch of DPDT be connected with electromagnetic relay.

Specific embodiment described herein only is that the utility model spirit is illustrated.The utility model person of ordinary skill in the field can make various modifications or replenishes or adopt similar mode to substitute described specific embodiment, but can't depart from the spirit of the utility model or surmount the defined scope of appended claims.

Claims (9)

1. the auxiliary actuating apparatus of a vehicle motor; Be connected with storage battery (1); Comprise the starter motor (9b) that is connected with engine mechanical and be used to control the starter relay (9a) that starter motor (9b) rotates; It is characterized in that; This auxiliary starting device also comprises ultracapacitor (3), change-over circuit and is used for big current conversion is the DC/DC transducer (2) of little electric current and voltage variable; The input end of DC/DC transducer (2) is connected with storage battery (1) is anodal, anodal DC/DC transducer (2) output terminal that connects of ultracapacitor (3) when starter relay (9a) breaks off, and ultracapacitor (3) negative pole is connected storage battery (1) negative pole through change-over circuit and forms charge circuit; Storage battery (1) is anodal simultaneously connects starter relay (9a), starter motor (9b) formation preparation initial start loop through change-over circuit; Change-over circuit broke off its charge circuit and preparation initial start loop when described starter relay (9a) was connected, and the positive pole of ultracapacitor (3) connects starter relay (9a) through change-over circuit, and the negative pole of ultracapacitor (3) connects through change-over circuit that storage battery (1) is anodal to be formed supercharging and start the loop.
2. the auxiliary actuating apparatus of vehicle motor according to claim 1; It is characterized in that; Described change-over circuit comprise unilateral diode (7), can with the first relay normally-closed contact (5), the second relay normally-closed contact (4) and first relay normally open contact (6) of starter relay (9a) synchronization motion; The first relay normally-closed contact (5) is connected between storage battery (1) positive pole and the starter relay (9a); The first relay normally-closed contact (5) is a first node with the connected node of starter relay (9a); First relay normally open contact (6) is connected between the negative pole of storage battery (1) positive pole and ultracapacitor (3); The second relay normally-closed contact (4) is connected between the negative pole and storage battery (1) negative pole of ultracapacitor (3), and the anode of unilateral diode (7) connects the positive pole of ultracapacitor (3), and the negative electrode of unilateral diode (7) is connected on the first node.
3. the auxiliary actuating apparatus of vehicle motor according to claim 2; It is characterized in that; Be serially connected with the current probe (8) that can detect starter motor (9b) electric current between described first node and the starter relay (9a); Current probe (8) signal end is connected with relay control unit (10); Send to relay control unit (10) after current probe (8) detects starter motor (9b) electric current and changing voltage when starter relay (9a) is closed; Relay control unit (10) instructs this actuating of relay; Control the disconnection of the first relay normally-closed contact (5) and the second relay normally-closed contact (4) and the closure of first relay normally open contact (6), this relay electric-loss resets the first relay normally-closed contact (5), the second relay normally-closed contact (4) and first relay normally open contact (6) during driving voltage that the signal that sends at current probe (8) sets less than relay control unit (10).
4. the auxiliary actuating apparatus of vehicle motor according to claim 3; It is characterized in that; Described relay control unit (10) also is provided with voltage detection module (11), given voltage module (12) and circuit control device; Voltage detection module (11) is used to detect the current voltage of storage battery and forms feedback voltage and flows to the circuit control device; The difference that the circuit control device calculates the setting voltage in feedback voltage and the circuit control forms given voltage, and the circuit control device is sent to given voltage in the given voltage module (12), the voltage that given voltage module (12) control DC/DC transducer (2) output is identical with given magnitude of voltage.
5. according to the auxiliary actuating apparatus of any described vehicle motor of claim 1 to 4; It is characterized in that; Said first relay normally-closed contact (5) two ends are parallel with diode (21); The anode of said diode (21) is connected with first relay normally-closed contact (5) input end, and the negative electrode of diode (21) is connected with first node.
6. the auxiliary actuating apparatus of vehicle motor according to claim 5; It is characterized in that; This auxiliary actuating apparatus has comprised the input pile crown (23) that is used to connect anode, the connection output pile crown (24) and the negative pole pile crown (27) that is used to be connected GND that is used to connect starter motor (9b), and described input pile crown (23) is the common joint of DC/DC transducer (2) input end, the first relay normally-closed contact (5) and first relay normally open contact (6); Said output pile crown (24) is the output terminal of current probe (8); Described negative pole pile crown (27) is the common joint of the second relay normally-closed contact (4) and relay control unit (10) negative pole.
As claimed in claim 6, wherein the auxiliary vehicle engine starting device, characterized in that said DC / DC converter (2) comprises a unidirectional or bidirectional chopper inverter switching circuit (14) and the switching converter circuitry (13a), unidirectional or bidirectional chopper inverter switching circuit (14) and the switching converter circuit (13a) connected to the switch conversion circuit (13a) of the output of DC / DC converter (2) output terminal , unidirectional or bidirectional inverter chopper switching circuit (14) preclude the use of constant current constant voltage control.
As claimed in claim 7, wherein the auxiliary vehicle engine starting device, characterized in that said DC / DC converter (2) includes a linear type voltage control circuit (15) and DC conversion element (13b), the linear type voltage control circuit (15) and the DC converting element (13b) connected to a linear type of voltage control circuit (15) preclude the use of constant pressure controlled.
9. the auxiliary actuating apparatus of vehicle motor according to claim 8; It is characterized in that; Described ultracapacitor (3) comprise first super capacitor (19) and second super capacitor (20) and with the 3rd relay normally-closed contact (18), second relay normally open contact (16), the 3rd relay normally open contact (17) of starting relay synchronization motion; Connect through the 3rd relay normally-closed contact (18) between said first super capacitor (19) and second super capacitor (20); The positive pole of said first super capacitor (19) connects second relay normally open contact (16) upper end; Second relay normally open contact (16) lower end connects the positive pole of second super capacitor (20); The negative pole of said first super capacitor (19) connects the 3rd relay normally open contact (17) upper end; The 3rd relay normally open contact (17) lower end connects the negative pole of second super capacitor (20), and said ultracapacitor (3) the 3rd relay normally-closed contact (18) when starter relay (9a) breaks off is closed, and second relay normally open contact (16), the 3rd relay normally open contact (17) are for separating; First super capacitor (19) becomes to be connected in series with second super capacitor (20); The 3rd relay normally-closed contact (18) is for separating when starter relay (9a) is closed for said ultracapacitor (3), and second relay normally open contact (16), the 3rd relay normally open contact (17) are closed, and first super capacitor (19) becomes to be connected in parallel with second super capacitor (20).
CN2012202764868U 2012-06-08 2012-06-08 Auxiliary starting device of automobile engine CN202628356U (en)

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Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102691607A (en) * 2012-06-08 2012-09-26 汤如法 Auxiliary starting device of vehicle engine
CN103560555A (en) * 2013-10-30 2014-02-05 杭州阳光工具有限公司 Automobile emergency starting power circuit capable of automatically judging normal output
CN106812647A (en) * 2015-12-01 2017-06-09 富华德电子(东莞)有限公司 Internal combustion engine start servicing unit
CN107893725A (en) * 2017-11-24 2018-04-10 中车株洲电力机车有限公司 A kind of startup method, system and device of diesel locomotive engine
CN108549258A (en) * 2018-03-23 2018-09-18 高湍斌 The time relay and its control method for multi-channel control
CN108681265A (en) * 2018-03-23 2018-10-19 高湍斌 The time relay and its control method
CN109427489A (en) * 2017-08-24 2019-03-05 通用汽车环球科技运作有限责任公司 Supercapacitor control system and method

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102691607A (en) * 2012-06-08 2012-09-26 汤如法 Auxiliary starting device of vehicle engine
CN102691607B (en) * 2012-06-08 2014-12-03 汤如法 Auxiliary starting device of vehicle engine
CN103560555A (en) * 2013-10-30 2014-02-05 杭州阳光工具有限公司 Automobile emergency starting power circuit capable of automatically judging normal output
CN103560555B (en) * 2013-10-30 2015-06-10 杭州阳光工具有限公司 Automobile emergency starting power circuit capable of automatically judging normal output
CN106812647A (en) * 2015-12-01 2017-06-09 富华德电子(东莞)有限公司 Internal combustion engine start servicing unit
CN106812647B (en) * 2015-12-01 2020-06-05 富华德电子(东莞)有限公司 Starting aid for internal combustion engine
CN109427489A (en) * 2017-08-24 2019-03-05 通用汽车环球科技运作有限责任公司 Supercapacitor control system and method
CN107893725A (en) * 2017-11-24 2018-04-10 中车株洲电力机车有限公司 A kind of startup method, system and device of diesel locomotive engine
CN108549258A (en) * 2018-03-23 2018-09-18 高湍斌 The time relay and its control method for multi-channel control
CN108681265A (en) * 2018-03-23 2018-10-19 高湍斌 The time relay and its control method

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