CN104847559A - Electronic control device, step soft meshing starter and control method of starter - Google Patents
Electronic control device, step soft meshing starter and control method of starter Download PDFInfo
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- CN104847559A CN104847559A CN201410056344.4A CN201410056344A CN104847559A CN 104847559 A CN104847559 A CN 104847559A CN 201410056344 A CN201410056344 A CN 201410056344A CN 104847559 A CN104847559 A CN 104847559A
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02N—STARTING OF COMBUSTION ENGINES; STARTING AIDS FOR SUCH ENGINES, NOT OTHERWISE PROVIDED FOR
- F02N11/00—Starting of engines by means of electric motors
- F02N11/08—Circuits or control means specially adapted for starting of engines
- F02N11/0851—Circuits or control means specially adapted for starting of engines characterised by means for controlling the engagement or disengagement between engine and starter, e.g. meshing of pinion and engine gear
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Abstract
The invention relates to a step soft meshing starter. The starter comprises an electronic control device, an electromagnetic switch and a motor which are sequentially connected. The electronic control device comprises a control input terminal, a first output terminal, a second output terminal, a first power tube, a second power tube and a logic control module. The control input terminal is connected with a power source terminal of the electromagnetic switch, and the first output terminal is connected to the head ends of an attraction coil and a holing coil of the electromagnetic switch; the second output terminal is connected with an input terminal of the motor; the first power tube is arranged between the control input terminal and the first output terminal, and the second power tube is arranged between the control input terminal and the second output terminal; the logic control module controls the first power tube and/or the second power tube to be conducted/not conducted/stopped according to the powering-on time of the starter and the terminal voltage of the starter; and a current-limiting resistor is arranged between the second power tube and the input terminal of the motor, so that when the second power tube is conducted, the motor can generate step torque. According to the step soft meshing starter, the flexible meshing success rate of the starter can be effectively improved, and the failure rate caused by abnormal reasons is reduced.
Description
Technical field
The present invention relates to starter motor technical field, particularly the electric control device of the soft engaging starter of a kind of step and controlling method.
Background technique
Fig. 1 is the sectional view of current existing auxiliary meshing type starter, with reference to figure 1, is described the overall structure of this type starter motor.In FIG, the output speed of the armature 11 reduced in motor 1 by speed reducer 2 increases its running torque exported simultaneously, is driven through the actuation gear 6 that one-way element 4 is installed on output shaft 5, and then applies starting torque to motor by motor 1.
Fig. 2 is the circuit diagram of the auxiliary meshing type starter of prior art, the main circuit of the type auxiliary meshing type starter will comprise direct current generator 1, magnetic switch 3 and control relay 12, coil in current auxiliary meshing type starter magnetic switch 3 is all made up of a sucking coil 36 and hold-in winding 37, the number of turn of two coils is substantially equal, and head end links together, namely the output terminal 50 of control relay 12 stationary contact links together with sucking coil 36 and hold-in winding 37, the input terminal 30b that the tail end of sucking coil 36 is also the motor of magnetic switch with the power end of direct current generator 1 is connected, the tail end bonding of hold-in winding 37.Control relay 12 is connected with the power supply terminal 30 of the magnetic switch of magnetic switch.
The resistance of sucking coil 36 is less, if voltage rating is the starter motor of 24V, its resistance is generally about 100 milliohms, such starter motor can little moment of torsion slow-speed before magnetic switch 3 main contact is closed, thus when allowing actuation gear 6 be against on flywheel ring gear 10 end face, actuation gear 6 can slowly rotate, fork tooth butt condition, engaging-in engine flywheel gear ring 10; After engaging-in gear ring, magnetic switch 3 main contact just can close, and just has big current and flow through in motor 1, and starter motor just can export by high pulling torque, thus avoids the generation of starter motor mill teeth fault.Therefore this kind of starter motor is also referred to as soft engaging starter.
Because the sucking coil 36 of this kind of starter relay 3 and the head end of hold-in winding 37 connect together, in order to ensure the reliable power-off of magnetic switch 3, the sucking coil 36 of such magnetic switch 3 and the effective turn of hold-in winding 37 must be basically identical, and the number of turn of hold-in winding 37 can not very little, the number of turn of such sucking coil 36 is also more.Although the method for sucking coil 36 number of turn can be reduced by the wire diameter of suitable increase sucking coil 36, starter motor can slowly be rotated before magnetic switch 3 main contact is not closed; But it is too many that the number of turn of sucking coil 36 can not reduce, otherwise consider the reliable power-off of magnetic switch 3, the number of turn of hold-in winding 36 also needs significantly to reduce.The soft engagement moment produced due to this kind of starter motor is limited, and in some cases, actuation gear 6 cannot engaging-in gear ring 10, thus produces apical tooth phenomenon, and namely actuation gear cannot engage gear ring fault.Because actuation gear 6 cannot engaging-in flywheel ring gear 10, sucking coil 36 is forced to long-time energising, and electric current in coil is comparatively large, and the magnetic switch 3 of such auxiliary meshing type starter easily produces fault.
In addition, the relay 12 that current soft engaging starter adopts is ordinary electromagnetic formula relay, and volume ratio is comparatively large, and function ratio is more single; When client uses starter motor extremely, during starter motor abnormal work, this relay 12 does not have detection protective function, cannot protection starting machine.
Summary of the invention
Technical problem to be solved by this invention is the problems referred to above existed for existing soft engaging starter, a kind of electric control device is provided, effectively to improve the success rate of starter motor flexibility engagement, and effectively reduce the rate of fault of the defective starter that abnormal cause causes, thus improve the working life of starter motor.
To achieve these goals, a kind of electric control device provided by the invention, a kind of electric control device, link together in motivation, and be connected with a storage battery by a control power supply terminal, described starter motor includes magnetic switch and motor, and described electric control device comprises:
Control input terminal, is connected with the power supply terminal of magnetic switch;
First Out let, is connected to sucking coil and the hold-in winding head end of magnetic switch;
Second Out let, is connected with the input terminal of motor;
First power tube, is arranged between control input terminal and the first Out let;
Second power tube, is arranged between control input terminal and the second Out let; And
Logic control module, is connected respectively with described first power tube and the second power tube, with according to control the current"on"time of starter motor and the terminal voltage of starter motor the first power tube and/or second power tube conducting/not conducting/by;
Wherein, between described second power tube and the input terminal of motor, be provided with current-limiting resistance, with the moment of torsion making motor produce step evolution when the second power tube conducting.
Above-mentioned electric control device, wherein, described Logic control module comprises voltage acquisition module, voltage comparison module, timing module and control unit, described voltage acquisition module is for gathering a terminal voltage of starter motor, described voltage comparison module and voltage acquisition module connect described terminal voltage compared with a setting voltage, described timing module for detect described starter motor current"on"time/ON time of ON time/described second power tube of described first power tube, described control unit is connected respectively with described voltage comparison module and timing module, and described control unit is based on described voltage comparison module and/or described timing module conducting/not conducting/by described first power tube and/or described second power tube.
Above-mentioned electric control device, wherein, described Logic control module comprises voltage acquisition module, voltage comparison module, timing module and control unit, described voltage acquisition module is for gathering the two-terminal voltage of starter motor, described voltage comparison module and voltage acquisition module connect compared with described two-terminal voltage, described timing module for detect described starter motor current"on"time/ON time of ON time/described second power tube of described first power tube, described control unit is connected respectively with described voltage comparison module and timing module, and described control unit is based on described voltage comparison module and/or described timing module conducting/not conducting/by described first power tube and/or described second power tube.
Above-mentioned electric control device, wherein, described voltage acquisition module comprises:
First voltage acquisition module, is connected with the power supply terminal of described control power supply terminal or described magnetic switch and controls power supply terminal voltage or magnetic switch power supply terminal voltage to gather; And
Second voltage acquisition module, is connected to gather motor input terminals voltage with the input terminal of described motor.
The present invention further provides the soft engaging starter of a kind of step, comprise and connect electric control device, magnetic switch and motor successively, described electric control device controls power supply terminal by one and is connected with a storage battery, and described electric control device comprises:
Control input terminal, is connected with the power supply terminal of magnetic switch;
First Out let, is connected to sucking coil and the hold-in winding head end of magnetic switch;
Second Out let, is connected with the input terminal of motor;
First power tube, is arranged between control input terminal and the first Out let;
Second power tube, is arranged between control input terminal and the second Out let; And
Logic control module, is connected respectively with described first power tube and the second power tube, with according to control the current"on"time of starter motor and the terminal voltage of starter motor the first power tube and/or second power tube conducting/not conducting/by;
Wherein, between described second power tube and the input terminal of motor, be provided with current-limiting resistance, with the moment of torsion making motor produce step evolution when the second power tube conducting.
The soft engaging starter of above-mentioned step, wherein, described Logic control module comprises voltage acquisition module, voltage comparison module, timing module and control unit, described voltage acquisition module is for gathering a terminal voltage of starter motor, described voltage comparison module and voltage acquisition module connect described terminal voltage compared with a setting voltage, described timing module for detect described starter motor current"on"time/ON time of ON time/described second power tube of described first power tube, described control unit is connected respectively with described voltage comparison module and timing module, and described control unit is based on described voltage comparison module and/or described timing module conducting/not conducting/by described first power tube and/or described second power tube.
The soft engaging starter of above-mentioned step, wherein, described Logic control module comprises voltage acquisition module, voltage comparison module, timing module and control unit, described voltage acquisition module is for gathering the two-terminal voltage of starter motor, described voltage comparison module and voltage acquisition module connect compared with described two-terminal voltage, described timing module for detect described starter motor current"on"time/ON time of ON time/described second power tube of described first power tube, described control unit is connected respectively with described voltage comparison module and timing module, and described control unit is based on described voltage comparison module and/or described timing module conducting/not conducting/by described first power tube and/or described second power tube.
The soft engaging starter of above-mentioned step, wherein, described voltage acquisition module comprises:
First voltage acquisition module, is connected with the power supply terminal of described control power supply terminal or described magnetic switch and controls power supply terminal voltage or magnetic switch power supply terminal voltage to gather; And
Second voltage acquisition module, is connected to gather motor input terminals voltage with the input terminal of described motor.
The present invention further provides the controlling method of the soft engaging starter of a kind of step, controlled by electric control device described above, include step:
S140, after starter motor starts the T1 time, based on the terminal voltage of starter motor, Logic control module judges whether the contact of magnetic switch closes, and if so, controls the first power tube and continues conducting; If not, control the first power tube and all conductings of the second power tube, to make the moment of torsion producing a step evolution in motor.
The controlling method of the soft engaging starter of above-mentioned step, wherein, in described step S140, after control first power tube and the second power tube all conducting, also comprises:
Step S1440, judges the second power tube ON time whether more than the time T2 of a setting, if so, controls the second power tube cut-off; If not, control the first power tube and the second power tube continuation conducting.
The controlling method of the soft engaging starter of above-mentioned step, wherein, before described step S140, also comprises step:
S120, judges whether control power supply terminal voltage is more than or equal to the magnitude of voltage U1 of setting, if so, controls the first power tube not conducting; If not, control the first power tube conducting.
The controlling method of the soft engaging starter of above-mentioned step, wherein, before described step S140, also comprises step:
S120, judges whether magnetic switch power supply terminal voltage is more than or equal to the magnitude of voltage U1 of setting, if so, controls the first power tube not conducting; If not, control the first power tube conducting.
The controlling method of the soft engaging starter of above-mentioned step, wherein, after described step S140, includes step:
S200, judges the first power tube ON time whether more than the time T4 of a setting, if so, controls the first power tube cut-off; If not, control the first power tube and continue conducting.
The controlling method of the soft engaging starter of above-mentioned step, wherein, after described step S140, before step S200, also comprises:
Step S150, after starter motor starts the T3 time, judges whether the contact of magnetic switch closes again, if so, controls the first power tube and continues conducting; If not, control the first power tube by.
The controlling method of the soft engaging starter of above-mentioned step, wherein, after described step S150, also comprises
Step S160, judges to control the whether stable magnitude of voltage U2 being greater than setting of power supply terminal voltage, if so, control the first power tube by; If not, control the first power tube and continue conducting.
The controlling method of the soft engaging starter of above-mentioned step, wherein, in described step S140, when detecting that the pressure drop of motor input terminals voltage and magnetic switch power supply terminal voltage is less than the value △ U of setting, or motor input terminals voltage is greater than the magnitude of voltage U3 of setting, then judge that the contact of magnetic switch closes.The controlling method of the soft engaging starter of above-mentioned step, wherein, in described step S150, when detecting that the pressure drop of motor input terminals voltage and magnetic switch power supply terminal voltage is less than the value △ U of setting, or motor input terminals voltage is greater than the magnitude of voltage U3 of setting, then judge that the contact of magnetic switch closes.
Beneficial functional of the present invention is, effectively can improve the success rate of starter motor flexibility engagement, and effectively can reduce the rate of fault of the defective starter that abnormal cause causes, as magnetic switch burn, actuation gear beats tooth, one-way element is stuck, commutator gets rid of the faults such as row; Improve the working life of starter motor simultaneously.
Describe the present invention below in conjunction with the drawings and specific embodiments, but not as a limitation of the invention.
Accompanying drawing explanation
Fig. 1 is the sectional view of the soft engaging starter of prior art;
Fig. 2 is the circuit diagram of the soft engaging starter of prior art in Fig. 1;
Fig. 3 is the circuit diagram of the soft engaging starter of step of first embodiment of the invention;
Fig. 4 is the Logic control module structured flowchart in Fig. 3;
Fig. 5 is the controlling method flow chart of the soft engaging starter of step of first embodiment of the invention;
Fig. 6 is the circuit diagram of the soft engaging starter of step of second embodiment of the invention;
Fig. 7 is the controlling method flow chart of the soft engaging starter of step of second embodiment of the invention.
Wherein, reference character
1-motor
2-speed reducer
3-magnetic switch
4-one-way element
5-output shaft
6-actuation gear
10-flywheel ring gear
11-armature
12-control relay
13-storage battery
22-electric control device
35-key door switch
36-sucking coil
37-hold-in winding
221-Logic control module
2211-voltage acquisition module
22111-the first voltage acquisition module
22112-the second voltage acquisition module
2212-voltage comparison module
2213-timing module
2214-control unit
223-voltage sense line
224-current-limiting resistance
225-voltage sense line
The power supply terminal of 30-magnetic switch
The input terminal of 30b-motor
50-output terminal
50c-control power supply terminal
50 I-the first Out lets
50 II-the second Out lets
Q1-the first power tube
Q2-the second power tube
S110 ~ S200 step
Embodiment
Below in conjunction with the drawings and specific embodiments, technical solution of the present invention is described in detail, further to understand object of the present invention, scheme and effect, but not as the restriction of claims protection domain of the present invention.
The soft engaging starter of step of the present invention adopts the electric control device with multi-protective function to control magnetic switch, to carry out multiple protection to starter motor.Below in conjunction with specific embodiment, the present invention is described in detail.
First embodiment
Consult Fig. 3, the soft engaging starter of step of the present invention comprises and connects electric control device 22, magnetic switch 3 and motor 1 successively, electric control device 22 controls power supply terminal 50c by one and is connected with a storage battery 13, storage battery 13, magnetic switch 3, motor 1 are same as the prior art, and magnetic switch 3 comprises sucking coil 36, hold-in winding 37, the power supply terminal 30 of magnetic switch and the Out let (Out let of magnetic switch herein is also the input terminal 30b of motor) of magnetic switch.Difference is, the present invention adopts electric control device 22 to substitute electromagnetic relay.Electric control device 22 comprises control input terminal, and the first Out let 50 I, second Out let 50 II, first power tube Q1, the second power tube Q2, and Logic control module 221, control input terminal is connected with the power supply terminal 30 of magnetic switch.First Out let 50 I is connected to sucking coil 36 and hold-in winding 37 head end of magnetic switch.Second Out let 50 II is connected with the input terminal 30b of motor.First power tube Q1 is arranged between control input terminal and the first Out let 50 I.Second power tube Q2 is arranged between control input terminal and the second Out let 50 II.Logic control module 221 is connected respectively with the first power tube Q1 and the second power tube Q2, with according to control the current"on"time of starter motor and the terminal voltage of starter motor the first power tube Q1 and/or second power tube Q2 conducting/not conducting/by.Wherein, between the second power tube Q2 and the input terminal 30b of motor, be provided with current-limiting resistance 224, with the moment of torsion making motor 1 produce step evolution when the second power tube Q2 conducting.
In conjunction with consulting Fig. 4, Logic control module 221 comprises voltage acquisition module 2211, voltage comparison module 2212, timing module 2213 and control unit 2214.First power tube Q1, the second power tube Q2 are connected with control unit 2214 respectively.Voltage acquisition module 2211 is for gathering the terminal voltage of starter motor, voltage comparison module 2212 is for comparing terminal voltage compared with a setting voltage or by two terminal voltages, timing module 2213 for detect starter motor current"on"time/ON time of ON time/the second power tube of the first power tube, control unit 2214 is connected respectively with voltage comparison module 2212 and timing module 2213, and control unit 2214 is based on voltage comparison module 2212 and/or timing module 2213 conducting/not conducting/by the first power tube Q1 and/or the second power tube Q2.In the present embodiment, voltage acquisition module 2211 comprises the first voltage acquisition module 22111 and the second voltage acquisition module 22112.First voltage acquisition module 22111 is connected with control power supply terminal 50c by voltage detecting circuit 225, and the second voltage acquisition module 22112 is connected with the input terminal 30b of motor by voltage detecting circuit 223.
By said structure, the soft engaging starter of step utilizes two of electric control device 22 control loops to control the coil of magnetic switch 3 (36 and 37) and current-limiting resistance 224 respectively.By power tube, (conducting as metal-oxide-semiconductor realizes two coil circuits of magnetic switch 3 and the power on/off of line resistance with cut-off to control loop.Owing to can be adjusted starter motor flexibility engagement moment by current-limiting resistance, when can ensure that sucking coil and current-limiting resistance are energized simultaneously like this, starter motor can produce enough moments of torsion, and such starter motor can avoid the generation of apical tooth fault effectively, ensure that the reliability that starter motor engages.And that the actuation gear active force acted on flywheel ring gear end face can reduce is lower, effectively reduces the wear extent of flywheel ring gear and actuation gear end face, thus ensure that the reliability that starter motor is durable.
Below in conjunction with the control flow chart of the starter motor of Fig. 5 first embodiment of the invention, introduce the working procedure of starter motor in detail, as shown in the flowchart, key door switch 35 is connected rear (step S110), the Logic control module 221 of electric control device begins through the voltage (step S121) of voltage sense line 225 detection control power supply terminal 50c, when detecting that the voltage controlling power supply terminal 50c is more than or equal to the value U1(electrical power generators of setting, regulator output voltage is 27.8 ± 03V, U1 is set as 27.5V), then judge that motor is in work, control unit 2214 controls the first power tube Q1 not conducting (step S123), the starter motor reignition because driver's misoperation causes can be prevented like this, thus cause actuation gear broken teeth.When detecting that controlling power supply terminal 50c voltage is less than U1, the control unit 2214 of Logic control module 221 controls the first power tube Q1 conducting (step S122), in the sucking coil 36 that the electric current of the power supply terminal 30 of such magnetic switch flows to magnetic switch 3 by the first power tube Q1 and hold-in winding 37, actuation gear 6 is got towards flywheel ring gear 10 under magnetic switch produces the effect of electromagnetic force, equally because the resistance of magnetic switch sucking coil is smaller, motor can drive the little moment of torsion of actuation gear to rotate, and actuation gear starts to carry out flexibility with flywheel ring gear and engages.
After the first power tube Q1 reaches the time T1 of setting current"on"time, as T1 is set to 0.1 ~ 0.3s, Logic control module 221 detects the voltage (step 13) of the input terminal 30b of motor by voltage sense line 223, so that judge whether magnetic switch contact closes, namely indirectly the whether engaging-in engine flywheel gear ring of actuation gear is judged, when the pressure drop of the voltage of input terminal 30b and the power supply terminal 30 of magnetic switch that motor detected is greater than the value Δ U of setting, or the voltage≤U3 of the input terminal 30b of motor, then judge that magnetic switch contact is not closed, the power supply terminal 30 of magnetic switch contact electromagnetic switch and the non-conducting of input terminal 30b of motor, namely actuation gear does not realize engaging with flywheel ring gear, then control unit 2214 controls the second power tube Q2 conducting (step 142), then electric current flows to the input terminal 30b of the motor of magnetic switch by current-limiting resistance 224 from the power supply terminal 30 of magnetic switch, thus inflow motor.The resistance of same current-limiting resistance 224 is smaller, similar to magnetic switch sucking coil resistance, such motor can produce the moment of torsion of a step evolution, thus can ensure that the moment of torsion produced can allow the smooth engaging-in gear ring of actuation gear, and the flywheel ring gear under state of rest even can be allowed to rotate.If detect that the pressure drop of the voltage of the input terminal 30b of magnetic switch motor and the power supply terminal 30 of magnetic switch is less than the value Δ U of setting, or the voltage of the input terminal 30b of motor is greater than U3, then judge that magnetic switch contact achieves closed, namely actuation gear and flywheel ring gear have achieved and have engaged, Logic control module 221 can not allow the second power tube Q2 conducting, continue control first power tube Q1 conducting (step 146), because magnetic switch contact there occurs closed, magnetic switch sucking coil 36 will be shorted, only have in hold-in winding 37 and pass through electric current, the electric current passed through in such first power tube Q1 will reduce to tens amperes, even only has several ampere.Equally because contact there occurs closed, the electric current in storage battery 13 directly will flow to motor 1 by electromagnetic contact, and starter motor can export by high pulling torque, and starter motor starts ato unit.
After car by motor, the load of starter motor diminishes, and the voltage controlling power supply terminal 50c can rise.In the process of such starting, Logic control module 221 is detected by voltage sense line 225 and controls power supply terminal 50c voltage (step S161), when detecting that controlling power supply terminal 50c voltage exceedes setting voltage U2 (as U2 is set to 24 ± 0.3V), first power tube Q1 ends (step S163), magnetic switch power-off, starter motor quits work, and can shorten the operating time of starter motor like this.If the voltage U 2 controlling power supply terminal 50c voltage and be less than setting detected always, control unit 2214 allows the first power tube Q1 continue conducting (step S162), until it is 22 ~ 30s that timing module 2213 detects that the first power tube Q1 ON time reaches set time T4(such as setting T4), control the first power tube Q1 and end (step S200), thus allowing the disconnection of magnetic switch contact, actuation gear release engine flywheel gear ring, starter motor quits work.
When under some abnormal conditions, have problems as actuation gear and flywheel ring gear gear pair assemble, after the time T2 (now power tube Q1 ON time reaches T3=TI+T2) reaching setting current"on"time time of the second power tube Q2 conducting, Logic control module detects the voltage of the input terminal 30b of motor by voltage sense line 223, if detect that the input terminal 30b voltage of motor and power supply terminal 30 voltage drop of magnetic switch are greater than the value Δ U of setting, or the voltage≤U3 of the input terminal 30b of motor, then judge that magnetic switch contact is not closed, the power supply terminal 30 of magnetic switch and the non-conducting of input terminal 30b of motor, namely actuation gear does not realize engaging with flywheel ring gear, then control unit 2214 controls the first power tube Q1 and the second power tube Q2 cut-off (step S1440 ~ step S153), magnetic switch attracts and hold-in winding power-off, starter motor quits work, thus the starter motor apical tooth because abnormal cause causes can be prevented, namely actuation gear cannot engaging-in gear ring, finally cause solenoid winding, the generation of current-limiting resistance and function pipe burning fault.
Second embodiment:
In some cases, as engine at extreme rear, the voltage drop of control wiring is larger, and like this, control power supply terminal 50c and the extreme pressure drop distribution scope of accumulator positive is larger, for 24V system, what have even reaches more than 2V.Like this by the voltage swing of detection control power supply terminal 50c, control, by inaccurate or do not have effective protective action, even to start opposite effect to starter motor.As overreach protection magnitude of voltage arranges too small, on the vehicle that pressure drop is smaller, starter motor does not also complete starting, and the protective function of electric control device just works, and starter motor is forced to force power-off.When line drop is larger, the voltage that starter motor controls power supply terminal 50c arranges voltage by likely be less than always, and the overreach protection function of starter motor may not have effect forever.
For the problems referred to above; the present invention also been proposed another scheme; due to power supply terminal 30 and the accumulator positive inter-stage of magnetic switch connection wire more slightly and shorter; the pressure drop of the power supply terminal 30 of such magnetic switch will be smaller, and carrying out multiple protecting control by the voltage of the power supply terminal 30 detecting magnetic switch to starter motor will be more accurate.
Present embodiment is compared with mode of execution one, the overall structure of starter motor is basically identical, as shown in Figure 6, the soft engaging starter of step comprises and connects electric control device 22, magnetic switch 3 and motor 1 successively, electric control device 22 controls power supply terminal 50c by one and is connected with a storage battery 13, storage battery 13, magnetic switch 3, motor 1 are same as the prior art, and magnetic switch 3 comprises sucking coil 36, hold-in winding 37, the power supply terminal 30 of magnetic switch and the input terminal 30b of motor.The present embodiment eliminates voltage sense line 225 on the basis of mode of execution one, add voltage sense line 222, first voltage acquisition module 22111 is connected with the power supply terminal 30 of magnetic switch by voltage detecting circuit 222, and the second voltage acquisition module 22112 is connected with the input terminal 30b of motor by voltage detecting circuit 223.
Below in conjunction with the control flow chart of Fig. 7, briefly introduce the working procedure of the starter motor of the present embodiment, key door switch 35 is connected rear (step S110), the voltage sense line 222 that begins through Logic control module 221 detects the voltage (step S121) of the power supply terminal 30 of magnetic switch, value U1(such as the U1 being more than or equal to setting when the voltage of the power supply terminal 30 magnetic switch being detected is set as 27.5V), then judge that motor works, control unit 2214 controls the first power tube Q1 and the second power tube Q2 not conducting (step S123), starter motor energising is reactionless, the starter motor reignition because driver's misoperation causes can be prevented like this, thus the faults such as actuation gear broken teeth can be reduced.
When detecting that power supply terminal 30 voltage of magnetic switch is less than U1, control unit 2214 controls the first power tube Q1 conducting (step S122), in the sucking coil 36 that the electric current of the power supply terminal 30 of such magnetic switch flows to magnetic switch 3 by the first power tube Q1 and hold-in winding 37, actuation gear is got under magnetic switch produces the effect of electromagnetic force, because the resistance of magnetic switch sucking coil is smaller, motor can drive the little moment of torsion of actuation gear to rotate.
After the first power tube Q1 reaches the time T1 (as 0.1 ~ 0.3s) of setting current"on"time, Logic control module 221 detects the voltage (step S13) of the input terminal 30b of motor by voltage sense line 223, so that judge whether magnetic switch contact closes, namely indirectly the whether engaging-in engine flywheel gear ring of actuation gear is judged, when the pressure drop of the voltage of input terminal 30b and the power supply terminal 30 of magnetic switch that motor detected is greater than the value Δ U of setting, or the voltage≤U3 of the input terminal 30b of motor, then judge that the power supply terminal 30 of magnetic switch is not closed with the input terminal 30b of motor, namely actuation gear does not realize engaging with flywheel ring gear, then control unit 2214 controls the second power tube Q2 conducting (step S142), then electric current flows to the input terminal 30b of the motor of magnetic switch by current-limiting resistance 224 from the power supply terminal 30 of magnetic switch, thus inflow motor.Because the resistance of current-limiting resistance 224 is smaller, for 24V starting system, resistance is about 70 ~ 200mohms, for 12V starting system, resistance is about 20 ~ 100mohms, can by the electric current of a step evolution in such motor, and same motor can produce the moment of torsion of a step evolution, thus can ensure that the moment of torsion produced can allow the smooth engaging-in gear ring of actuation gear, the flywheel ring gear under state of rest even can be allowed to rotate.
When the pressure drop of the voltage of input terminal 30b and the power supply terminal 30 of magnetic switch that motor detected is less than the value Δ U of setting, or the voltage of the input terminal 30b of motor is greater than U3, then judge that magnetic switch contact achieves closed, namely actuation gear and flywheel ring gear have achieved and have engaged, control unit can not allow the second power tube Q2 conducting, continue control first power tube Q1 conducting (step S146), because magnetic switch contact there occurs closed, the sucking coil 36 of magnetic switch 3 will be shorted, only have in hold-in winding 37 and pass through electric current, the electric current passed through in such first power tube Q1 will reduce to tens amperes, even only has several ampere.Equally because contact there occurs closed, the electric current in storage battery 13 directly will flow to motor by magnetic switch contact, and starter motor can export by high pulling torque, and starter motor starts motor.
When under some abnormal conditions, have problems as actuation gear and flywheel ring gear gear pair assemble, after the time T2 (now power tube Q1 ON time reaches T3=TI+T2) reaching setting current"on"time time of the second power tube Q2 conducting, Logic control module detects the voltage of the input terminal 30b of motor by voltage sense line 223, if detect that the input terminal 30b voltage of motor and power supply terminal 30 voltage drop of magnetic switch are greater than the value Δ U of setting, or the voltage≤U3 of the input terminal 30b of motor, then judge that magnetic switch contact is not closed, the power supply terminal 30 of magnetic switch and the non-conducting of input terminal 30b of motor, namely actuation gear does not realize engaging with flywheel ring gear, then control unit 2214 controls the first power tube Q1 and the second power tube Q2 cut-off (step S1440 ~ step S153), magnetic switch attracts and hold-in winding power-off, starter motor quits work, thus the starter motor apical tooth because abnormal cause causes can be prevented, namely actuation gear cannot engaging-in gear ring, finally cause solenoid winding, the generation of current-limiting resistance and function pipe burning fault.
When after engine start, the load of starter motor diminishes, and the voltage of the power supply terminal 30 of the magnetic switch of magnetic switch 3 can rise.In the process of such starting, Logic control module 221 detects the voltage of the power supply terminal 30 of magnetic switch by voltage sense line 222, when detecting that power supply terminal 30 voltage of magnetic switch exceedes setting voltage U2 (by a large amount of test data analysis, it is proper that U2 is set to 24 ± 0.3V), control the first power tube Q1 and end (step S163), magnetic switch power-off, starter motor quits work, and can shorten the operating time of starter motor like this.If detect that power supply terminal 30 voltage of magnetic switch is less than the voltage U 2 of setting always, Logic control module allows the first power tube Q1 continue conducting (step S162), until it is 22 ~ 30s that timing module 2213 detects that the first power tube Q1 ON time reaches set time T4(such as setting T), control the first power tube Q1 and end (step S200), thus allowing the disconnection of magnetic switch contact, actuation gear exit engine flywheel gear ring, starter motor quits work.
For the application of different starter motors, the resistance of the current-limiting resistance 224 in electric control device 22 can design more easily, does not limit by other factors such as the hold-in winding numbers of turn.Current-limiting resistance 224 also can design in magnetic switch 3, as coil, above skeleton; Also can designing outside starter motor, as being designed to a wire, connecting the input terminal 30b of the motor of the second power tube Q2 output terminal and magnetic switch 3.Current-limiting resistance can select the larger material of specific resistance to make, as constantan, stainless steel etc.
For different customer demands, above-mentioned protective function can conductively-closed, as disconnected each voltage sense line, just can reduce corresponding protective function; The parameter of each protective function above-mentioned can adjust according to customer demand.
Certainly; the present invention also can have other various embodiments; when not deviating from the present invention's spirit and essence thereof; those of ordinary skill in the art are when making various corresponding change and distortion according to the present invention, but these change accordingly and are out of shape the protection domain that all should belong to the claim appended by the present invention.
Claims (17)
1. an electric control device, links together in motivation, and is connected with a storage battery by a control power supply terminal, and described starter motor includes magnetic switch and motor, it is characterized in that, described electric control device comprises:
Control input terminal, is connected with the power supply terminal of magnetic switch;
First Out let, is connected to sucking coil and the hold-in winding head end of magnetic switch;
Second Out let, is connected with the input terminal of motor;
First power tube, is arranged between control input terminal and the first Out let;
Second power tube, is arranged between control input terminal and the second Out let; And
Logic control module, is connected respectively with described first power tube and the second power tube, with according to control the current"on"time of starter motor and the terminal voltage of starter motor the first power tube and/or second power tube conducting/not conducting/by;
Wherein, between described second power tube and the input terminal of motor, be provided with current-limiting resistance, with the moment of torsion making motor produce step evolution when the second power tube conducting.
2. electric control device according to claim 1, it is characterized in that, described Logic control module comprises voltage acquisition module, voltage comparison module, timing module and control unit, described voltage acquisition module is for gathering a terminal voltage of starter motor, described voltage comparison module and voltage acquisition module connect described terminal voltage compared with a setting voltage, described timing module for detect described starter motor current"on"time/ON time of ON time/described second power tube of described first power tube, described control unit is connected respectively with described voltage comparison module and timing module, and described control unit is based on described voltage comparison module and/or described timing module conducting/not conducting/by described first power tube and/or described second power tube.
3. electric control device according to claim 1, it is characterized in that, described Logic control module comprises voltage acquisition module, voltage comparison module, timing module and control unit, described voltage acquisition module is for gathering the two-terminal voltage of starter motor, described voltage comparison module and voltage acquisition module connect compared with described two-terminal voltage, described timing module for detect described starter motor current"on"time/ON time of ON time/described second power tube of described first power tube, described control unit is connected respectively with described voltage comparison module and timing module, and described control unit is based on described voltage comparison module and/or described timing module conducting/not conducting/by described first power tube and/or described second power tube.
4. the electric control device according to Claims 2 or 3, is characterized in that, described voltage acquisition module comprises:
First voltage acquisition module, is connected with the power supply terminal of described control power supply terminal or described magnetic switch and controls power supply terminal voltage or magnetic switch power supply terminal voltage to gather; And
Second voltage acquisition module, is connected to gather motor input terminals voltage with the input terminal of described motor.
5. the soft engaging starter of step, comprises and connects electric control device, magnetic switch and motor successively, and described electric control device controls power supply terminal by one and is connected with a storage battery, and it is characterized in that, described electric control device comprises:
Control input terminal, is connected with the power supply terminal of magnetic switch;
First Out let, is connected to sucking coil and the hold-in winding head end of magnetic switch;
Second Out let, is connected with the input terminal of motor;
First power tube, is arranged between control input terminal and the first Out let;
Second power tube, is arranged between control input terminal and the second Out let; And
Logic control module, is connected respectively with described first power tube and the second power tube, with according to control the current"on"time of starter motor and the terminal voltage of starter motor the first power tube and/or second power tube conducting/not conducting/by;
Wherein, between described second power tube and the input terminal of motor, be provided with current-limiting resistance, with the moment of torsion making motor produce step evolution when the second power tube conducting.
6. the soft engaging starter of step according to claim 5, it is characterized in that, described Logic control module comprises voltage acquisition module, voltage comparison module, timing module and control unit, described voltage acquisition module is for gathering a terminal voltage of starter motor, described voltage comparison module and voltage acquisition module connect described terminal voltage compared with a setting voltage, described timing module for detect described starter motor current"on"time/ON time of ON time/described second power tube of described first power tube, described control unit is connected respectively with described voltage comparison module and timing module, and described control unit is based on described voltage comparison module and/or described timing module conducting/not conducting/by described first power tube and/or described second power tube.
7. the soft engaging starter of step according to claim 5, it is characterized in that, described Logic control module comprises voltage acquisition module, voltage comparison module, timing module and control unit, described voltage acquisition module is for gathering the two-terminal voltage of starter motor, described voltage comparison module and voltage acquisition module connect compared with described two-terminal voltage, described timing module for detect described starter motor current"on"time/ON time of ON time/described second power tube of described first power tube, described control unit is connected respectively with described voltage comparison module and timing module, and described control unit is based on described voltage comparison module and/or described timing module conducting/not conducting/by described first power tube and/or described second power tube.
8. the soft engaging starter of the step according to claim 6 or 7, is characterized in that, described voltage acquisition module comprises:
First voltage acquisition module, is connected with the power supply terminal of described control power supply terminal or described magnetic switch and controls power supply terminal voltage or magnetic switch power supply terminal voltage to gather; And
Second voltage acquisition module, is connected to gather motor input terminals voltage with the input terminal of described motor.
9. a controlling method for the soft engaging starter of step, is characterized in that, by controlling just like the electric control device in claim 1-4 described in any one, includes step:
S140, after starter motor starts the T1 time, based on the terminal voltage of starter motor, Logic control module judges whether the contact of magnetic switch closes, and if so, controls the first power tube and continues conducting; If not, control the first power tube and all conductings of the second power tube, to make the moment of torsion producing a step evolution in motor.
10. the controlling method of the soft engaging starter of step according to claim 9, is characterized in that, in described step S140, after control first power tube and the second power tube all conducting, also comprises:
Step S1440, judges the second power tube ON time whether more than the time T2 of a setting, if so, controls the second power tube cut-off; If not, control the first power tube and the second power tube continuation conducting.
The controlling method of the soft engaging starter of 11. step according to claim 10, is characterized in that, before described step S140, also comprise step:
S120, judges whether control power supply terminal voltage is more than or equal to the magnitude of voltage U1 of setting, if so, controls the first power tube not conducting; If not, control the first power tube conducting.
The controlling method of the soft engaging starter of 12. step according to claim 10, is characterized in that, before described step S140, also comprise step:
S120, judges whether magnetic switch power supply terminal voltage is more than or equal to the magnitude of voltage U1 of setting, if so, controls the first power tube not conducting; If not, control the first power tube conducting.
The controlling method of 13. soft engaging starters of step according to claim 11 or 12, is characterized in that, after described step S140, include step:
S200, judges the first power tube ON time whether more than the time T4 of a setting, if so, controls the first power tube cut-off; If not, control the first power tube and continue conducting.
The controlling method of the soft engaging starter of 14. step according to claim 13, is characterized in that, after described step S140, before step S200, also comprise:
Step S150, after starter motor starts the T3 time, judges whether the contact of magnetic switch closes again, if so, controls the first power tube and continues conducting; If not, control the first power tube by.
The controlling method of the soft engaging starter of 15. step according to claim 14, is characterized in that, after described step S150, also comprise
Step S160, judges to control the whether stable magnitude of voltage U2 being greater than setting of power supply terminal voltage, if so, control the first power tube by; If not, control the first power tube and continue conducting.
The controlling method of the soft engaging starter of 16. step according to claim 9, it is characterized in that, in described step S140, when detecting that the pressure drop of motor input terminals voltage and magnetic switch power supply terminal voltage is less than the value △ U of setting, or motor input terminals voltage is greater than the magnitude of voltage U3 of setting, then judge that the contact of magnetic switch closes.
The controlling method of the soft engaging starter of 17. step according to claim 14, it is characterized in that, in described step S150, when detecting that the pressure drop of motor input terminals voltage and magnetic switch power supply terminal voltage is less than the value △ U of setting, or motor input terminals voltage is greater than the magnitude of voltage U3 of setting, then judge that the contact of magnetic switch closes.
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| CN201410056344.4A CN104847559B (en) | 2014-02-19 | 2014-02-19 | Electronic-controlled installation, the soft engaging starter of step and control method thereof |
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| CN201410056344.4A CN104847559B (en) | 2014-02-19 | 2014-02-19 | Electronic-controlled installation, the soft engaging starter of step and control method thereof |
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| CN106640470A (en) * | 2016-12-31 | 2017-05-10 | 科博达技术有限公司 | Starter protector for controlling starter current limiter and automobile starting control system of starter protector |
| CN106884753A (en) * | 2015-12-16 | 2017-06-23 | 北京佩特来电器有限公司 | Starter and its active conjugate control method |
| CN109768668A (en) * | 2019-03-05 | 2019-05-17 | 武汉神动汽车电子电器股份有限公司 | Starter relay and the starter using the switch is controlled electronically |
| CN111188712A (en) * | 2019-11-29 | 2020-05-22 | 潍柴动力股份有限公司 | Starter exiting method and device, storage medium and terminal |
| CN109768668B (en) * | 2019-03-05 | 2024-07-12 | 武汉神动汽车电子电器股份有限公司 | Electronic control starter electromagnetic switch and starter using same |
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| CN109768668B (en) * | 2019-03-05 | 2024-07-12 | 武汉神动汽车电子电器股份有限公司 | Electronic control starter electromagnetic switch and starter using same |
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| CN104847559B (en) | 2016-09-21 |
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Effective date of registration: 20200423 Address after: 101118, No. 3 South Street, little fort village, Songzhuang Town, Beijing, Tongzhou District Co-patentee after: PRESTOLITE ELECTRIC (WEIFANG) Ltd. Patentee after: PRESTOLITE ELECTRIC (BEIJING) Ltd. Address before: 101118 Songzhuang Town, Beijing, Tongzhou District Patentee before: PRESTOLITE ELECTRIC (BEIJING) Ltd. |
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