CN100385769C - Battery charging controller - Google Patents
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- CN100385769C CN100385769C CNB200410094947XA CN200410094947A CN100385769C CN 100385769 C CN100385769 C CN 100385769C CN B200410094947X A CNB200410094947X A CN B200410094947XA CN 200410094947 A CN200410094947 A CN 200410094947A CN 100385769 C CN100385769 C CN 100385769C
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Abstract
Provided is a battery charger capable of preventing such a situation as a battery is not charged due to deficiency of generator output when an engine is idling and the battery dies. A battery (3) is charged by supplying a charging current from an engine driven magnet type alternator (1) through a rectifier circuit (200A). Battery voltage regulating operation is carried out by triggering a thyristor (Thx or Thz) when the voltage across the battery (3) exceeds a set level thereby short-circuiting the generator output. A regulating operation detecting circuit (201) is provided and deficiency of generator output is judged from the detection frequency of the regulating operation. If a decision is made that the generator output is deficient when the engine is idling, r.p.m. of engine idling is increased within a predetermined upper limit thus eliminating deficiency of generator output.
Description
Technical field
The present invention relates to when utilizing output by the permanent magnet alternator that engine drove, control so that the voltage at battery two ends remains in the battery charging control device of set point to battery charge.
Background technology
Be equipped on the battery charging control device on the vehicle by engine drove, have: the input terminal that is added the output of the permanent magnet alternator that drives by engine, pair of output that is connected with battery and the charging control circuit that carries out following adjustment action, promptly, when the voltage between this pair of output is less than or equal to set point, make and export between pair of output with voltage being carried out the resulting battery charge of rectification by the interchange of the generator that added output between input terminal, when the voltage between pair of output surpasses set point, battery charge is stopped with the output of voltage or limit it.
For example, in the open 2001-231180 communique of Japanese Patent Application Publication special permission, record this battery charging control device.In the disclosed battery charging control device of the open 2001-231180 communique of Japanese Patent Application Publication special permission, charging control circuit is made of following parts, that is: diode bridge full-wave rectifying circuit, AC input terminal is connected on the above-mentioned input terminal and dc output end is connected on pair of output; Thyristor use in charging control, is connected in reverse parallel on each diode of bottom of electric bridge of formation full-wave rectifying circuit; Triggering signal is supplied with and use switch, be set between the gate pole of the lead-out terminal of the positive polarity side among pair of output and each thyristor, when becoming on-state to each thyristor to and triggering signal; And triggering signal supply ON-OFF control circuit, supply is controlled with switch to triggering signal, so that when the voltage between pair of output is less than or equal to set point, the triggering signal supply is held in off-state with switch, when the voltage between pair of output surpasses set point, then triggering signal is supplied with and be held in on-state with switch.
Openly specially permit in the disclosed battery charging control device of open 2001-231180 communique in Japan's patent application, when the voltage at battery two ends is less than or equal to set point, triggering signal is supplied with and is kept off-state with switch, so charging control is not given and triggering signal with thyristor.At this moment, charging control keeps off-state with thyristor, and charging current is provided for battery from generator by rectification circuit.If the voltage at battery two ends surpass set point then triggering signal supply with and become on-state with switch, so each charging control just becomes on-state with thyristor, makes the output short-circuit of generator by each thyristor and certain diode of the bottom of the electric bridge that constitutes rectification circuit.Thereby charging current just is stopped to the supply of battery, and the voltage at battery two ends reduces.If the voltage at battery two ends be less than or equal to set point then triggering signal supply with and become off-state with switch, so just each thyristor is not given and triggering signal, each thyristor becomes off-state when its anode current is less than or equal to holding current.Thus, begin once more to the battery supplying charging current.By carrying out these actions repeatedly, the voltage at battery two ends just is maintained near the set point.
Summary of the invention
In recent years, adopt and used the control of microcomputer unit for duration of ignition of controlling engine or fuel injection time, in addition, owing on battery, connect various electric components such as audio frequency apparatus, so the tendency that just exists the load of battery to increase.Carry out under the state of high speed rotating with higher rotation speed to a certain degree at engine, even the load increase of battery does not have problem yet.But if when engine no-load running bigger load is connected on the battery, then the output of generator just can not be carried out battery charge sometimes with deficiency, just might cause that battery uses up.Particularly just driving starter motor and starting under the state behind the engine, owing to battery is consumed, so the danger of generator generation output deficiency is bigger.In addition, if under the situation that engine is in carried out for a long time under the unloaded state placing, make the energy output reduction because the temperature of generator rises, so be easy to generate the state that can not carry out battery charge.
Purpose of the present invention just provides a kind of battery charging control device, and this device can be eliminated when the load of battery is big or be in when having carried out placement for a long time under the Light Condition at engine, can not carry out battery charge and the worry that battery is used up takes place.
The invention provides a kind of input terminal that has, the battery charging control device of pair of output and charging control circuit, wherein, this input terminal is connected with output by the permanent magnet alternator that engine drove, this pair of output is connected with battery, this charging control circuit carries out following adjustment action, promptly, when above-mentioned pair of output in voltage when being less than or equal to set point the interchange output to the above-mentioned generator that is connected to above-mentioned input terminal carry out rectification, and the resulting battery charge of rectification outputed to above-mentioned pair of output with voltage, when surpassing set point, the voltage between above-mentioned pair of output then stops or limiting the output of above-mentioned battery charge usefulness voltage, this battery charging control device is characterised in that and comprises: adjust motion detector circuit, carried out producing when above-mentioned adjustment is moved at above-mentioned charging control circuit and adjusted the motion detection signal; Generator output judging part produces output superfluous or not enough that the frequency of adjusting the motion detection signal is judged above-mentioned generator according to above-mentioned adjustment motion detector circuit; And engine speedup control assembly during no-load running, when the output of judging above-mentioned generator by above-mentioned generator output judging part when the no-load running at above-mentioned engine is not enough, the no-load speed of above-mentioned engine is risen.
As mentioned above, be provided with under the situation of when the voltage between the lead-out terminal that connects battery surpasses set point, carrying out the such charging control circuit of the adjustment action of output voltage enforcement restriction, under the state of the output abundance of generator, adjust action and carry out, if the output surplus of generator then adjust action with the cycle of constant with higher frequency.In addition, if the output deficiency of generator then do not adjust action or adjust action hardly.Thereby as mentioned above, the adjustment motion detector circuit that the motion detection signal is adjusted in when charging control circuit has carried out adjusting action output is set, adjusts the occurrence frequency of motion detection signal, just can learn the surplus of output of generator or not enough by observation.
In the present invention, when no-load running, judge the output of generator when not enough according to the occurrence frequency of adjusting the motion detection signal at engine, make the control of the no-load speed rising of engine, so just can prevent from when the no-load running of engine, to become the state of the output deficiency of generator, can not carry out battery charge and produce the state that battery is used up.
Optimized technical scheme is in addition, also be provided with in the present invention: engine retard control assembly during no-load running, when the output of being judged generator by generator output judging part is superfluous, the no-load speed of engine is descended.
As mentioned above, if engine retard control assembly when being provided with the no-load running that the no-load speed that makes engine when the output of judging generator according to the occurrence frequency of adjusting the motion detection signal is superfluous descends, engine speedup control assembly during then by means of no-load running, under no-load speed is caught to have risen state, load reduces and when making the output of generator superfluous, the rotating speed of engine is reduced, when no-load running, fuel cost is increased or CO with too high rotating speed rotation so just can prevent engine
2Discharge rate increases.
Above-mentioned generator output judging part can followingly constitute, for example when the state continuance of adjusting the motion detection signal be judged as the output deficiency of generator during the regular hour, then be judged as generator when the adjustment motion detection signal of set point number has taken place and be output as surplus in predetermined judgement time.
Above-mentioned charging control circuit constitutes with the switch and the circuit of controlling with ON-OFF control circuit that charges by possessing charging control, and wherein, switch is used in this charging control, and being configured to becomes on-state so that short circuit between input terminal when giving and going code; This charging control ON-OFF control circuit, when the voltage between pair of output surpasses set point, charging control is given with switch and gone code, when the voltage between the lead-out terminal is less than or equal to set point, stops to supply with switch and go code to charging control.In the case, adjust motion detector circuit and just constitute, will export as adjusting the motion detection signal with the signal after going code synchronously.
Can use thyristor as above-mentioned charging control with switch.In the case, above-mentioned charging control circuit can by as lower member formation, that is: diode bridge full-wave rectifying circuit, AC input terminal are connected on the input terminal and dc output end is connected on the above-mentioned lead-out terminal; Thyristor use in charging control, is connected in reverse parallel on each diode of bottom of each diode of top of the electric bridge that constitutes full-wave rectifying circuit or formation electric bridge; Triggering signal is supplied with and use switch, be set between the gate pole of the lead-out terminal of the positive polarity side among pair of output and each thyristor, when becoming on-state to each thyristor to and triggering signal (going code); And triggering signal supply ON-OFF control circuit, the triggering signal supply is controlled with switch so that when the voltage between pair of output is less than or equal to set point the triggering signal supply is held in off-state with switch, when the voltage between pair of output surpasses set point, the triggering signal supply is held in on-state with switch.
In the case, adjusting motion detector circuit can constitute by supplying with the adjustment motion detection switch of synchronously connecting disconnection with the connection disconnection of switch with triggering signal, can with when this adjustment motion detection switch becomes on-state at the resulting signal in the two ends of this adjustment motion detection switch with adjusting the motion detection signal.
Above-mentioned charging control circuit, can also adopt following structure, have: charging control switch, be provided in to becoming on-state when going code, when giving, become off-state to forbid the output of battery charge control with voltage with open command to allow the output of battery charge control with voltage; And charging control use ON-OFF control circuit, when the voltage between the lead-out terminal is less than or equal to set point, charging control is given with switch and goes code, when the voltage between the lead-out terminal surpasses set point to charging control with switch to and open command.In the case, adjust motion detector circuit and just constitute, will export as adjusting the motion detection signal with the signal of open command after synchronously.
As mentioned above according to the present invention, the adjustment motion detector circuit of output adjustment motion detection signal when charging control circuit has carried out adjusting action is set, when no-load running, judge the output of generator when not enough according to the occurrence frequency of adjusting the motion detection signal at engine, control the no-load speed that makes engine and rise, cause to carry out the worry that battery charge produces the state that battery uses up so just can eliminate when the no-load running of engine output deficiency because of generator.
Description of drawings
Fig. 1 is the circuit diagram of the structure of expression embodiments of the present invention.
Fig. 2 is the sequential chart that is illustrated in the execution mode shown in Figure 1 the example that time of the rotating speed of the adjustment motion detection signal of adjusting motion detector circuit output, engine and cell voltage changes.
Fig. 3 is the flow chart that is illustrated in the algorithm that makes the task that microprocessor carries out in the execution mode of Fig. 1.
Fig. 4 is the circuit diagram that is illustrated in the structure example of the engine controller 4 that adopts in the execution mode of Fig. 1.
Embodiment
Below, the preferred implementation that present invention will be described in detail with reference to the accompanying.
Fig. 1 is the circuit diagram of the structure of expression one embodiment of the present invention.In the figure, the 1st, the permanent magnet alternator that drives by not shown engine (internal combustion mechanism), the 2nd, battery charging control device of the present invention, the 3rd, battery, the 4th, possess the engine controller of microprocessor.
Permanent magnet alternator 1, by the not shown Magnmet rotor on the bent axle that is installed in engine, threephase armature winding 1u, the 1v and the 1w that have the armature core (not shown) of the magnetic pole piece relative with the magnetic pole of Magnmet rotor and be wrapped on this armature core form, and synchronously export 3 cross streams voltages with the rotation of engine.
Battery charging control device 2 of the present invention, have: the sub-2u of three-phase input end that is added the output of permanent magnet alternator, 2v and 2w, the sub-2a of pair of output that is connected with battery 3,2b, and the charging control circuit 200 that carries out following adjustment action, promptly, as the sub-2a of pair of output, when the voltage between the 2b is less than or equal to set point, make the interchange output of the generator that externally is added on input terminal 2u～2w carry out the resulting battery charge of rectification with voltage from the sub-2a of pair of output, export between the 2b, as the sub-2a of pair of output, when the voltage between the 2b surpasses set point, battery charge is stopped with the output of voltage or limit it.
As being used for the permanent magnet alternator is the charging control circuit of the battery charging control device of power supply, the most employing possessing charging control switch and the charging control circuit of charging control with ON-OFF control circuit, wherein, this charging control switch, when by to and become on-state when going code and make short circuit between input terminal 2u, 2v and the 2w; This charging control ON-OFF control circuit, when the voltage between the sub-2a of pair of output, the 2b surpasses set point, then charging control is provided with switch to go code, when the voltage between the lead-out terminal is less than or equal to set point, then stop to provide with switch going code to charging control.Adopting this charging control with under the situation of ON-OFF control circuit, adjust motion detector circuit and just can followingly constitute, be about to go code synchronously after signal export as adjustment motion detection signal.
Illustrated charging control circuit 200 has full-wave rectifying circuit 200A, the control of charging is supplied with switch 200B and triggering signal supply ON-OFF control circuit 200C with thyristor Thx～Thz, triggering signal, and thyristor Thx～Thz constitutes charging control switch.In addition, constitute charging control ON-OFF control circuit with switch 200B and triggering signal supply with ON-OFF control circuit 200C by the triggering signal supply.
Full-wave rectifying circuit 200A is by diode Du, Dv, the Dw of the top that constitutes electric bridge and constitute the known diode bridge full-wave rectifying circuit that diode Dx, Dy, the Dz of the bottom of electric bridge form, its three-phase alternating current input terminal is connected the sub-2u～2w of three-phase input end of battery Yan controller for electric consumption, and positive polarity side dc output end and negative polarity side dc output end are connected on lead-out terminal 2a and the 2b.
Charging control is connected in reverse parallel in respectively with thyristor Thx～Thz on diode Dx, Dy, the Dz of bottom of electric bridge of formation full-wave rectifying circuit 200A, when charging control during, by the arbitrary short circuit current that constitutes the output short-circuit that makes generator among the thyristor of conducting and diode Dx, Dy, the Dz with the arbitrary conducting among thyristor Thx, Thy, the Thz.
For example, when thyristor Thx becomes on-state, constitute the short circuit current (making the short circuit current of short circuit between input terminal 2u and 2v) that makes generating winding 1u and 1v short circuit by thyristor Thx and diode Dy, constitute the short circuit current (making the short circuit current of short circuit between input terminal 2u and 2w) that makes generating winding 1u and 1w short circuit by thyristor Thx and diode Dz.
Triggering signal supply with switch 200B be when becoming on-state to each thyristor to the switch of triggering signal (going code), in illustrated embodiment, this switch is made up of PNP transistor T R1.The emitter of transistor T R1 is connected on positive polarity side dc output end of rectification circuit 200A, and collector electrode is connected on the shared tie point of an end of resistor R 1x～R1z.The other end of resistor R 1x～R1z is connected on dc output end of negative polarity side of rectification circuit 200A by resistor R 2x～R2z respectively, is connected with the gate pole of thyristor Thx～Thz on the tie point of the tie point of tie point, resistor R 1y and the resistor R 2y of resistor R 1x and resistor R 2x and resistor R 1z and resistor R 2z respectively.
It is triggering signal to be supplied with control with switch 200B that triggering signal is supplied with ON-OFF control circuit 200C, so that when the voltage between lead-out terminal 2a, 2b is less than or equal to set point, the triggering signal supply is remained off-state with switch 200B, and when surpassing set point, the voltage between lead-out terminal 2a, 2b make triggering signal supply with the circuit that is held in on-state with switch 200B.In illustrated embodiment, this control circuit 200C is by the parallel circuits of resistor R 3 between base stage that is connected transistor T R1 and the lead-out terminal 2a and capacitor C1, and is connected the base stage of transistor T R1 and the series circuit of Zener diode ZD1 between the lead-out terminal 2b and resistor R 4 is formed.In this embodiment, the Zener voltage of selected Zener diode ZD1 and the resistance value of resistor R 4 are so that Zener diode ZD1 conducting when the voltage between lead-out terminal 2a, 2b surpasses set point.
The structure of above-mentioned charging control circuit 200 still in the present invention, also is provided with and detects the adjustment motion detector circuit 201 whether charging control circuit 200 has carried out adjusting action with identical in the past.This adjustment motion detector circuit 201 has with the triggering signal supply synchronously connects the adjustment motion detection switch 201A of disconnection with the connection disconnection of switch 200B.When adjustment motion detection switch 201A is in on-state, just be used as adjustment motion detection signal at the resulting signal in the two ends of this adjustment motion detection switch.
In illustrated embodiment, the NPN transistor TR2 that is connected on the lead-out terminal 2b by emitter constitutes adjustment motion detection switch 201A, and the base stage of transistor T R2 is connected on the collector electrode of transistor T R1 by resistor R 5.In addition, be connected with resistor R 6 between the Base-Emitter of transistor T R2, the collector electrode of transistor T R2 is connected on the input port of engine controller 4.Constitute adjustment motion detector circuit 201 by transistor T R2 and resistor R 5, R6.
Illustrated holding circuit 4B is made up of AND circuit AND1 and PNP transistor T R3, wherein, this AND circuit AND1, one side's input terminal is connected on the collector electrode of transistor T R2 by resistor R 8, lead-out terminal is connected by resistor R 9 on the port P1 of microprocessor 4A, and simultaneously the current potential of port P1 is fed input terminal to the opposing party by resistor R 10; This PNP transistor T R3, its collector electrode is connected on the port P1, and base stage is connected on the port P2 of microprocessor by resistor R 11.The emitter of transistor T R3 is connected on the side of the positive electrode lead-out terminal of not shown power supply.
In illustrated holding circuit 4B, when microprocessor 4A is made as the current potential of port P2 H level (reset signal does not take place) and makes transistor T R3 be in off-state, and transistor T R2 is in off-state and when take place adjusting the motion detection signal, the output of AND circuit AND1 becomes H level (high level).If transistor T R2 becomes on-state and adjusts the motion detection signal under this state, then the output of AND circuit AND1 just becomes L level (low level), and the current potential of port P1 becomes the L level.Microprocessor when the current potential of port P1 becomes the L level, identifies adjustment motion detection signal has taken place.Because the current potential of port P1 is fed back to the input side of AND circuit by resistor R 10, so the output of AND circuit AND1 is retained the state of L level.If microprocessor 4A is made as the current potential of port P2 the L level and exports reset signal, then transistor T R3 becomes on-state, therefore, the current potential of the lead-out terminal of AND circuit AND1 and the current potential of input terminal that connected the resistor R 10 of AND circuit are set as the H level.This moment, then the output of AND circuit AND1 just was resumed (resetting) one-tenth H level if transistor T R2 is in off-state.
In addition in the present invention, carry out preset program by the microprocessor that makes engine controller 4 and constitute following parts, that is: generator output judging part judges that according to the frequency of adjusting motion detector circuit generation adjustment motion detection signal the output of generator is superfluous or not enough; Engine speedup control assembly during no-load running is judged to be the output of generator when not enough by generator output judging part when in engine no-load running, the no-load speed of engine is risen; And engine retard control assembly during no-load running, when in engine no-load running, be judged to be the output of generator when superfluous by generator output judging part, the no-load speed of engine is descended.
In the present embodiment, the following formation of generator output judging part, that is: when adjust motion detector circuit adjust the motion detection signal state continuance just be judged to be the output deficiency of generator during certain time interval T 1; And take place to adjust under the state of motion detection signal with certain cycle adjusting motion detector circuit, the frequency of this adjustment motion detection signal just is judged to be the output surplus of generator during more than or equal to set point.
In battery charging control device shown in Figure 1, when the voltage between lead-out terminal 2a, the 2b of charging control circuit 2 was less than or equal to set point, not conducting of Zener diode ZD1 was not so flow through base current on transistor T R1.This moment, transistor T R1 was retained off-state, so charging control is not given and triggering signal with thyristor Thx～Thz, these thyristors keep off-state.Under this state, the output voltage of generator 1 is undertaken adding to battery 3 outward after the rectification by full-wave rectifying circuit 200A, so battery 3 is recharged.When battery charges, when the voltage at these battery two ends (voltage between lead-out terminal 2a, the 2b) surpasses set point, Zener diode ZD1 conducting, so base current flows through transistor T R1, this transistor T R1 becomes on-state.Charging control is given and triggering signal with thyristor Thx～Thz thus, thus among these thyristors, the current potential of anode with respect to negative electrode high with regard to conducting, the output of generator 1 is by short circuit.Therefore, applied voltage not just between lead-out terminal 2a, 2b, the charging of battery 3 stops.Thus when the voltage at the two ends of battery 3 reduces and is less than or equal to set point, transistor T R1 becomes off-state, so stop to supply with triggering signal to charging control with thyristor Thx～Thz, each thyristor becomes off-state in the moment that separately the anode current of flowing through is less than or equal to holding current.Again carry out the charging of battery 3 thus.By these actions repeatedly, the voltage at battery two ends is maintained near the set point.
Adjust the transistor T R2 of motion detector circuit 201, when transistor T R1 becomes on-state, be set as on-state by transistor T R1 with base current from battery or rectification circuit 200A, when transistor T R1 becomes off-state, be set as off-state.Thereby transistor T R2 (adjusting the motion detection switch) synchronously connects disconnection with the connection disconnection of transistor T R1 (triggering signal is supplied with and used switch).In the present embodiment, with transistor T R1 become on-state (carried out adjust action), the current potential Vc of collector electrode of transistor T R2 when transistor T R2 becomes on-state is input to holding circuit 4B as adjusting motion detection signal (expression has carried out adjusting the signal of action), make its storage that the information of this adjustment motion detection signal take place, and make the microprocessor 4A of engine controller identify the situation of having carried out adjusting action.
Shown in Fig. 3 when constituting generator output judging part, no-load running engine retard control assembly and make the flow chart of the algorithm of the task that microprocessor carries out when engine speedup control assembly and no-load running.
Task shown in Figure 3 (for example 80msec) at regular intervals is performed.Under situation, at first in step 1, judge the current no-load running of whether carrying out according to this algorithm.When consequently being judged as when carrying out no-load running, in step 2, judge whether to have taken place adjustment motion detection signal.When consequently being judged as when taking place to adjust the motion detection signal, after reset signal being taken place from the port P2 of microprocessor and the current potential of port P1 is returned to the H level, enter step 3, make and detect counter Cs make zero (with count value zero setting) adjusting adjustment action that number of times that the motion detection signal taken place counts, then in step 4, make not detect to adjusting adjustment action that the nonevent number of times of action counts that the count value of counter C θ is corresponding to increase progressively 1.
Then, whether the count value of judging counter C θ in step 5, is not after this carried out any processing ground and is finished this task when the count value of counter C θ does not reach regulation count value FC θ more than or equal to regulation count value FC θ.When the count value that in step 5, is judged as counter C θ during more than or equal to regulation count value FC θ, enter step 6 counter C θ is made zero, in step 7, make the corresponding raising rising of rotating speed of target Ni correction value alpha.Judge in step 8 afterwards whether rotating speed of target Ni is higher than limit value, when rotating speed of target Ni is not higher than higher limit, does not after this carry out any processing ground and finish this task.When in step 8, being judged as rotating speed of target Ni when higher, enter step 9 and make rotating speed of target Ni equal higher limit N than higher limit
UL, and finish this task.The engine speeder makes the rotating speed of engine rise to rotating speed of target M during by means of the no-load running that constituted in other task.
When in step 2, being judged as when adjustment motion detection signal has taken place, after returning to the H level from the port P2 of microprocessor output reset signal and with the current potential of port P1, enter step 10 and will adjust action and not detect the counting value returns of counter C θ, in step 11, make and adjust action and detect that the count value of counter Cs is corresponding to increase progressively 1.Whether the count value of then judging counter Cs in step 12, is not after this carried out any processing ground and is finished this task when the count value of counter Cs is not greater than or equal to regulation count value FCs more than or equal to regulation count value FCs.When the count value that in step 12, is judged as counter Cs during more than or equal to regulation count value FCs, enter the counting value returns of step 13 with counter, in step 14, make the corresponding reduction decline of rotating speed of target Ni correction value beta.Then in step 15, judge that whether rotating speed of target Ni is than lower limit N
LLLow, when rotating speed of target Ni than lower limit N
LLWhen low, after this do not carry out any processing ground and finish this task.When in step 15, being judged as rotating speed of target Ni than lower limit N
LLWhen low, then make rotating speed of target Ni equal lower limit N
LL, and finish this task.Current when being not the no-load running state when in step 1, being judged as, enter step 17 and counter Cs and C θ are made zero and finish this task.
Under situation,, be configured for adjusting the superfluous or not enough generator output judging part that the frequency of motion detection signal is judged the output of generator according to adjusting the motion detector circuit generation by step 3～6 and step 10～13 based on algorithm shown in Figure 3.In addition, by step 7～9 and control so that the rotating speed of the engine not shown task consistent with rotating speed of target, engine speedup control assembly when constituting no-load running, and by step 14～16 and control so that the rotating speed of the engine not shown task consistent engine retard control assembly when constituting no-load running with rotating speed of target.
In battery charging control device shown in Figure 1, the load that is connected to battery when in engine no-load running hour, then because the output deficiency of generator, so periodically adjust action, as than moment t1 shown in Figure 2 also the preceding the state, whenever the current potential Vc of the collector electrode of adjusting action transistor T R2 can reduce, carried out adjusting the situation of moving and just periodically detected.Under this state, no-load speed is retained as setting speed Ns1, and the voltage VB at battery two ends is retained as set point VBs.
If at moment t1 bigger load is connected to battery, then the voltage of battery 3 will reduce, and the voltage between lead-out terminal 2a, the 2b reduces, so transistor T R1 can not become on-state, can not adjust action (making the action of the output short-circuit of generator).Therefore, the current potential Vc of the collector electrode of transistor T R2 keeps the state of high level, and engine controller is not just given and adjusted the motion detection signal.Particularly just be easy to generate such state behind the engine just driving starter motor and started.At this moment, in the step 2 of Fig. 3 task, be judged as adjustment motion detection signal and do not take place, and execution in step 3～9.When becoming constantly t2 as this state continuance certain hour t1, in step 5, be judged as and adjust the count value that action do not detect counter C θ and reached set point FC θ (being judged as the output deficiency of generator).Therefore, in step 7, make the corresponding raising rising of the rotating speed of target correction value alpha of engine, and make the no-load speed of engine rise to Ns3 (=Ns1+ α).
As mentioned above, be provided for the adjustment motion detector circuit 201 of output adjustment actuating signal when charging control circuit has carried out adjusting action, when the output of judging generator according to the frequency of adjusting the generation of motion detection signal is not enough, make the no-load speed of engine rise if control, just can prevent that when engine no-load running output deficiency because of generator causes battery not charge and produces the state that battery is used up.
If by above-mentioned processing, make the no-load speed rising just become following state: the output of generator and load be balance roughly, carries out or does not adjust action according to the small variations of the small variations of engine speed or electric loading.Under this state, owing to do not have and adjust the count value that action do not detect counter C θ and reach set point FC θ, the count value of perhaps adjusting motion detection event counter Cs reaches the situation of set point FCs, so just do not have the output deficiency that is judged as generator, perhaps be judged as the situation of the output surplus of generator.This moment, no-load speed was retained as Ns3.
Under above-mentioned state, if the output surplus of generator, just become the state that the motion detection signal takes place with the gap periods ground also shorter at interval than Fig. 3 task executions of adjusting, whenever the task of execution graph 3 all can be judged in step 2 adjustment motion detection signal has taken place, therefore, (at the moment of Fig. 2 t4) judges in the step 12 of Fig. 3 and adjusts the number of times that the motion detection signal takes place and reached set point FCs at once, and makes the corresponding minimizing decline of the rotating speed of target correction value beta of engine in step 14.The engine retard control assembly makes the rotating speed of engine drop to Ns2 (=Ns3-β) during no-load running at this moment.
As mentioned above, if when the output of judging generator according to the frequency of adjusting the generation of motion detection signal is superfluous, the no-load speed of engine is reduced, just can be under the state that no-load speed is risen, the output that load reduces generator reduces the rotating speed of engine when becoming surplus, thus just can prevent engine when no-load running with too high rotating speed rotation and fuel cost is increased or CO
2Discharge rate increases.
Engine speedup control assembly can be made of the fuel feed control assembly during above-mentioned no-load running, this fuel feed control assembly, the quantity delivered of fuel is controlled so that when the output of judging generator is not enough, the air-fuel ratio of the mist that supplies to engine is changed towards the side that engine speed is risen.The control of the quantity delivered of fuel for example can be undertaken by the fuel injection amount of regulating from fuel injection device.
Engine speedup control assembly also can be made of the valve control assembly in addition during above-mentioned no-load running, this valve control assembly, the mist quantity delivered of the quantity delivered that is used to regulate mist regulated control, so that mist is increased to the quantity delivered of engine with valve.Regulate as the mist quantity delivered and to use valve, can adopt the flow through isc valve of air capacity of stream of bypass choke valve of choke valve or adjusting.
Engine speedup control assembly also can be made of the adjustment component duration of ignition in addition during above-mentioned no-load running, this, adjustment component was adjusted the duration of ignition of engine when the output that is judged as generator is not enough towards the side that the rotating speed that makes engine rises duration of ignition.
In addition, the engine retard control assembly can be made of the fuel feed control assembly during above-mentioned no-load running, this fuel feed control assembly, the quantity delivered of fuel is controlled so that when the output of judging generator is superfluous, the air-fuel ratio of the mist that supplies to engine is changed towards the side that engine speed is descended.
The engine retard control assembly also can be made of the valve control assembly in addition during above-mentioned no-load running, this valve control assembly, the mist quantity delivered of the quantity delivered that is used to regulate mist regulated controls with valve, so as when the output that is judged as generator is superfluous, to make this mist to engine quantity delivered reduce.
The engine retard control assembly also can be made of the adjusting device duration of ignition in addition during above-mentioned no-load running, this, adjusting device was adjusted the duration of ignition of engine when the output that is judged as generator is superfluous towards the side that the rotating speed that makes engine descends duration of ignition.
In the above-described embodiment, charging control circuit 200 is made of with ON-OFF control circuit with switch and charging control charging control, wherein should charging control use switch, be provided in by to and become on-state so that short circuit between input terminal when going code; This charging control ON-OFF control circuit (the triggering signal supply is supplied with switch 200B and triggering signal and used control circuit 200C), when the voltage between the sub-2a of pair of output, the 2b surpasses set point, charging control is given with switch and go code, when the voltage between the lead-out terminal is less than or equal to set point, stop charging control is given with switch and gone code.But the present invention is not limited to constitute like that as mentioned above the situation of charging control circuit 200.The present invention is also applicable to the situation that is made of charging control circuit following charging control with switch and charging control with ON-OFF control circuit, wherein, this charging control switch, being provided in to be given becomes on-state to allow the output of battery charge control with voltage when going code, and becomes off-state to forbid the output of battery charge control with voltage when being given with open command; ON-OFF control circuit use in this charging control, when the voltage between lead-out terminal is less than or equal to set point, charging control is given with switch and goes code, when the voltage between lead-out terminal surpasses set point to charging control with switch to and open command.
For example, the present invention also is applicable to the situation that adopts following charging control circuit, constitute full-wave rectifying circuit 200A and control by the mixed electrical bridge of diode and thyristor (charging control switch) and when being less than or equal to set point the thyristor of this rectification circuit is changed to on-state and, when the voltage between lead-out terminal then is changed to the thyristor of this rectification circuit off-state and the charging of battery is stopped during above set point the battery supplying charging current with the voltage between convenient lead-out terminal 2a, the 2b (voltages at battery two ends).
As mentioned above, be changed to off-state with switch and carry out under the situation of charging control circuit of voltage adjustment using when the voltage between lead-out terminal surpasses set point to control by charge, adjust motion detector circuit with regard to following formation, will export as adjustment motion detection signal with being used to indicate open command that control is changed to off-state with the switch signal after synchronously that charge.
Though in execution mode shown in Figure 1, charging control is connected in reverse parallel in thyristor Thx～Thz on the diode Dx～Dz of bottom of electric bridge of formation diode bridge full-wave rectifying circuit 200A.But charging control also can be connected in reverse parallel in respectively with thyristor on the diode Du～Dw of top of the electric bridge that constitutes diode bridge full-wave rectifying circuit 200A.
Claims (5)
1. one kind has input terminal, the battery charging control device of pair of output and charging control circuit, wherein, this input terminal is connected with output by the permanent magnet alternator that engine drove, this pair of output is connected with battery, this charging control circuit carries out following adjustment action, promptly, rectification is carried out in interchange output to the above-mentioned generator that is connected to above-mentioned input terminal when the voltage between above-mentioned pair of output is less than or equal to set point, and the resulting battery charge of rectification outputed to above-mentioned pair of output with voltage, then stop or limiting the output of above-mentioned battery charge usefulness voltage when the voltage between above-mentioned pair of output surpasses set point, this battery charging control device is characterised in that and comprises:
Adjust motion detector circuit, carried out producing when above-mentioned adjustment is moved at above-mentioned charging control circuit and adjusted the motion detection signal;
Generator output judging part produces output superfluous or not enough that the frequency of adjusting the motion detection signal is judged above-mentioned generator according to above-mentioned adjustment motion detector circuit; And
Engine speedup control assembly during no-load running, when the output of judging above-mentioned generator by above-mentioned generator output judging part when the no-load running at above-mentioned engine is not enough, the no-load speed of above-mentioned engine is risen.
2. battery charging control device according to claim 1 is characterized in that also comprising:
Engine retard control assembly during no-load running when the output of judging above-mentioned generator by above-mentioned generator output judging part is superfluous, makes the no-load speed of above-mentioned engine descend in the scope that is not less than the lower limit speed that sets in advance.
3. battery charging control device according to claim 1 and 2 is characterized in that:
Above-mentioned charging control circuit has,
Switch is used in charging control, be provided in to and become on-state so that short circuit between above-mentioned input terminal when going code; And
Charging control ON-OFF control circuit, when the voltage between above-mentioned pair of output surpasses above-mentioned set point, above-mentioned charging control is given with switch and gone code, when the voltage between above-mentioned lead-out terminal is less than or equal to set point, stop to go code with the switch supply to above-mentioned charging control
Above-mentioned adjustment motion detector circuit will be exported as above-mentioned adjustment motion detection signal with above-mentioned signal after going code synchronously.
4. battery charging control device according to claim 1 and 2 is characterized in that:
Above-mentioned charging control circuit has,
Switch use in charging control, is provided in to becoming on-state to allow the output of above-mentioned battery charge control with voltage when going code, and becomes off-state to forbid the above-mentioned battery charge control output of voltage when giving with open command; And
Charging control ON-OFF control circuit, when the voltage between above-mentioned lead-out terminal is less than or equal to above-mentioned set point, above-mentioned charging control is given with switch and go code, when the voltage between above-mentioned lead-out terminal surpasses above-mentioned set point, above-mentioned charging control is given and open command with switch
Above-mentioned adjustment motion detector circuit will be exported as above-mentioned adjustment motion detection signal with the signal of above-mentioned open command after synchronously.
5. battery charging control device according to claim 1 and 2 is characterized in that:
Above-mentioned charging control circuit has,
Diode bridge full-wave rectifying circuit, AC input terminal are connected to above-mentioned input terminal and dc output end is connected to above-mentioned lead-out terminal;
Thyristor use in charging control, is connected in reverse parallel on each diode of bottom of each diode of top of the electric bridge that constitutes above-mentioned full-wave rectifying circuit or formation electric bridge;
Triggering signal is supplied with and use switch, be set between the gate pole of the lead-out terminal of the positive polarity side among above-mentioned pair of output and above-mentioned each thyristor, when becoming on-state to each thyristor to and triggering signal; And
Triggering signal is supplied with and is used ON-OFF control circuit, above-mentioned triggering signal supply is controlled with switch, so that when the voltage between above-mentioned pair of output less than or etc. above-mentioned triggering signal supplied with when stating set point on hand and is held in off-state with switch, when the voltage between above-mentioned pair of output surpasses above-mentioned set point, then above-mentioned triggering signal is supplied with and be held in on-state with switch
Above-mentioned adjustment motion detector circuit possesses with above-mentioned triggering signal supply and connects the adjustment motion detection switch of disconnection synchronously with the connection disconnection of switch; When becoming on-state, above-mentioned adjustment motion detection switch is used as above-mentioned adjustment motion detection signal at the resulting signal in the two ends of this adjustment motion detection switch.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2003390460A JP2005160129A (en) | 2003-11-20 | 2003-11-20 | Battery charge controller |
| JP390460/2003 | 2003-11-20 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1619914A CN1619914A (en) | 2005-05-25 |
| CN100385769C true CN100385769C (en) | 2008-04-30 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB200410094947XA Expired - Fee Related CN100385769C (en) | 2003-11-20 | 2004-11-19 | Battery charging controller |
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| Country | Link |
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| JP (1) | JP2005160129A (en) |
| CN (1) | CN100385769C (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4367416B2 (en) * | 2006-01-13 | 2009-11-18 | 国産電機株式会社 | Battery charge control device |
| JP5395571B2 (en) * | 2009-08-28 | 2014-01-22 | 国産電機株式会社 | DC power supply |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0740389A1 (en) * | 1995-04-24 | 1996-10-30 | Nippondenso Co., Ltd. | Generating apparatus |
| JPH1070851A (en) * | 1996-08-26 | 1998-03-10 | Shindengen Electric Mfg Co Ltd | Battery charger |
| CN1257618A (en) * | 1997-03-18 | 2000-06-21 | 马涅蒂马雷利股份公司 | Voltage regulator for alternators, particularly for motor vehicles |
| JP2003111299A (en) * | 2001-10-02 | 2003-04-11 | Kokusan Denki Co Ltd | Battery charge controller |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62173944A (en) * | 1986-01-28 | 1987-07-30 | 日産自動車株式会社 | Charging circuit for vehicle |
| JP3188803B2 (en) * | 1994-03-04 | 2001-07-16 | 三菱電機株式会社 | Power generation control device for vehicles |
| JP3432463B2 (en) * | 1999-09-09 | 2003-08-04 | 株式会社日本自動車部品総合研究所 | Battery capacity measurement device |
| JP3489523B2 (en) * | 2000-02-16 | 2004-01-19 | 国産電機株式会社 | Battery charger |
-
2003
- 2003-11-20 JP JP2003390460A patent/JP2005160129A/en active Pending
-
2004
- 2004-11-19 CN CNB200410094947XA patent/CN100385769C/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0740389A1 (en) * | 1995-04-24 | 1996-10-30 | Nippondenso Co., Ltd. | Generating apparatus |
| JPH1070851A (en) * | 1996-08-26 | 1998-03-10 | Shindengen Electric Mfg Co Ltd | Battery charger |
| CN1257618A (en) * | 1997-03-18 | 2000-06-21 | 马涅蒂马雷利股份公司 | Voltage regulator for alternators, particularly for motor vehicles |
| JP2003111299A (en) * | 2001-10-02 | 2003-04-11 | Kokusan Denki Co Ltd | Battery charge controller |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2005160129A (en) | 2005-06-16 |
| CN1619914A (en) | 2005-05-25 |
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