CN101004148A - Internal combustion control device - Google Patents
Internal combustion control device Download PDFInfo
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- CN101004148A CN101004148A CN 200610128525 CN200610128525A CN101004148A CN 101004148 A CN101004148 A CN 101004148A CN 200610128525 CN200610128525 CN 200610128525 CN 200610128525 A CN200610128525 A CN 200610128525A CN 101004148 A CN101004148 A CN 101004148A
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Abstract
The present invention discloses an internal combustion engine controlling device enabling a vehicle equipped with said internal combustion engine and a generator therein to be launched reliably even when batteries discharges. Said internal combustion engine controlling device comprises an electrical machine (1) for a power generation by utilizing drive of the internal combustion engine (engine), batteries (9) used for supplying power to electricity of the vehicle, and a control unit (10) for controlling fuels supplied to the engine. The control unit (10) cuts off a current path between the electrical machine (1) and the batteries (9) or a current path between the electrical machine (1) and DC loads (6) such as lamps and lanterns when the start-up action of the engine starts, and then connects the current paths, according to determining results of the engine running states, by detecting alterations of suction pipe pressures and the like.
Description
Technical field
The present invention relates to the combustion engine control of the control internal-combustion engine relevant (following also title " motor ") with the power supply unit of vehicle (for example two-wheel vehicle, machine outside, wheelbarrow, snow are got on the bus, Wave Race etc.).
Background technique
Generally, combustion engine control comprises the fuel injection system of electronic control type, control unit is according to the revolution and the load computing fuel feed of motor, provide drive signal to Fuelinjection nozzle (sparger), in this device, sometimes when vehicle-mounted battery discharge and electric power storage when insufficient, when for example starting, the major part of the generation power of generator is used for the charging of battery, makes the fuel injection system action can not get sufficient power supply.
Particularly in two-wheel vehicle during battery discharge, utilize the recoil bar to start, the crankshaft revolution of motor is low when starting because of recoil sometimes, the electric current that rotates the generator output of generating electricity by bent axle is few, and the major part of generation current flows into the battery of discharge, so fuel injection system is not supplied with sufficient electric power, can not regular event, can not make engine start.
Therefore, in view of the above problems, proposed when the recoil of two-wheel vehicle starts, utilized controlling component to make the scheme (for example with reference to patent documentation 1, patent documentation 2) of the combustion engine control of the switch part disconnection between generator and the battery.
In the patent documentation 1 described device in the past, comprise the step of the cell voltage when measuring the main switch conducting, and detect the step that the non-recoil operation is arranged.
In the patent documentation 2 described devices in the past, use injection module with petrolift and ejector function.
[patent documentation 1] spy opens the 2002-98032 communique
[patent documentation 2] spy opens the 2002-155828 communique
Combustion engine control in the past, under the situation of above-mentioned patent documentation 1, measured load according to cell voltage is controlled switch part, though it is relevant between discharge condition of battery (charged state) and the cell voltage, for example the battery of 12V series cell voltage in charged state 0%～100% scope only changes about 1V, but in battery pole plates generation sulphation, when battery becomes deterioration state, produce other relation between cell voltage and the charged state, so it is low that the problem that exists is based on the testing precision of charged state of cell voltage, can not reach enough control reliability.
Its result, the problem in the worst situation are, although the charged state of battery is insufficient, can not suitably disconnect the current path between generator and the battery, the possibility that exists motor not start.
In addition, in the situation of patent documentation 1, the detection part of using because of detection recoil operation of components is necessary, and therefore the problem that exists is a complex system, causes cost to rise reliability decrease.
On the other hand, use as above-mentioned patent documentation 2 when spraying module, the problem of existence is that the instantaneous current sinking when spraying module and drive is big, and the charged state of battery is insufficient state, can not make engine start.
In addition, during with current path from the generator to the battery of controlling component automatic disconnection, though be necessary correctly to judge the charged state of battery, problem is as mentioned above, can not correctly hold battery charging state according to cell voltage.
The present invention does for solving the above problems, and abominable even its purpose is to obtain the charged state of battery, engine start also makes fuel injection system and ignition mechanism move reliably at need, can make the combustion engine control of engine start.
Summary of the invention
Combustion engine control of the present invention, control is installed in the internal-combustion engine of vehicle, wherein, comprising: the generator that utilizes internal combustion engine drive, output generation power; Utilize generation power charging, and the battery that electrical load is powered; Detect the various sensors of the operating condition of internal-combustion engine, by generator and described powered battery, and according to operating condition control control unit to the internal-combustion engine fueling: and drive by control unit, and be switched on or switched off the 1st switch part of the 1st current path from the generator to the battery, various sensors comprise the Air suction pipe pressure sensor of the Air suction pipe pressure that detects internal-combustion engine and detect to adjust at least one side in the throttle valve position sensor of throttle valve opening degree of throttle valve of suction air quantity of internal-combustion engine, control unit has according to operating condition judges that should export l cut-off signal or l to described l switch part connects one l judging part in the signal, the 1st judging part is judged the signal that should export the 1st switch part according at least one side's of Air suction pipe pressure and throttle valve opening degree upset condition.The effect of invention
According to the present invention, because the charged state of battery descends or battery is removed etc., the engine start that causes because of the power supply of battery also can make fuel injection system and ignition mechanism move reliably at need, makes engine start.
Description of drawings
Fig. 1 illustrates the circuit diagram of the combustion engine control of example 1 of the present invention.
Fig. 2 illustrates the dynamic sequential chart of the Air suction pipe pressure of example 1 of the present invention.
Fig. 3 illustrates the Air suction pipe pressure of example 1 of the present invention and the dynamic sequential chart of throttle valve opening degree.
Fig. 4 illustrates the flow chart of action of the control unit (ECU) of example 1 of the present invention.
Embodiment
Example 1
Fig. 1 is for illustrating the circuit diagram of the combustion engine control of example 1 of the present invention with power supply unit.
Power supply unit shown in Figure 1 and combustion engine control are installed in the not shown vehicle.
Among the figure, output AC electric power magnet-type generator 1 is the necessary electric power of supply vehicle, is configured on the bent axle (not shown) of motor.
Be connected in the regulator 2 of generator 1, the generation power of commutator generator 1 output, and adjust output voltage.
Be connected in regulator 2 electrolytic condenser 3, make the output voltage smoothing after regulator 2 rectifications.
By the smooth output voltage of electrolytic condenser 3 level and smooth mistakes, through ignition switch 4 supply engine control gear 5.
In addition, smooth output voltage is reversed the anode that the 1st switch part 8 that is connected in parallel is supplied with vehicle-mounted battery 9 through diode 7.
Smooth output voltage is supplied with through the 2nd switch part 20 does not in addition have direct acting DC load 6 (for example light fixture class, alarm buzzer etc.) to engine start.
Connect the starter motor 21 of utilizing activator switch 22 conductings on the anode of battery 9.
Engine controlling unit 5 has the electronic type control unit (ECU) 10 that is made of microcomputer.
Though control unit 10 omits concrete diagram here, but contain the storage and the imput output circuit that work with microcomputer, as is generally known, constitute burner oil fuel injection control device of using and the IGNITION CONTROL parts that utilize the mixed gas in the igniter plug 23 igniter motor cylinders to use in the sucking pipe (also claiming " suction tude ") to motor.
In the control unit 10, various sensors as the operating condition of detection of engine, be connected to the Air suction pipe pressure sensor 11 of detection of engine load, the inhalation temperature sensor 12 of the intake air temperature of detection of engine, be contained in the temperature cylinder sensor 13 cylinder outer wall face, that detect temperature cylinder of motor, the throttle valve position sensor 14 of the throttle valve opening degree of the throttle valve of the suction air quantity of detection adjustment motor, and the crankshaft angle sensor 15 that detects crankshaft rotating (crank shaft angle and revolution).
Detection information from various sensors is input to control unit 10, is used for various control computings.
In addition, engine controlling unit 5, comprise: to the sparger 16 of sucking pipe burner oil, the petrolift 17 that sparger 16 transfer the fuels are used, the petrolift relay 18 of opening/turn-offing of convert fuel pump 17 under the control of control unit 10, and the spark coil 19 of the igniting usefulness that under the control of control unit 10, drives and igniter plug 23.
In addition, control gear 10 is also controlled the 1st switch part 8 and the 2nd switch part 20.
The 1st switch part 8 is made of the relay of normally closed (during non-excitation is on state), be nonexcited state (regulator 2 and battery 9 coupled condition) when motor stops, encourage/non-excitation control (disconnecting when causing excitation) by control output by output from control unit 10.
Equally, the relay that the 2nd switch part 20 is also used normally closed (during non-the excitation is on state) constitutes, and is nonexcited state (regulator 2 and DC load 6 coupled condition) when motor stops, and is encouraged/non-excitation control by the output from control unit 10.
Secondly, the action of example of the present invention 1 shown in Figure 1 is described.In addition, the vehicle that is mounted as motor is that the situation of object is that example illustrates it with the two-wheel vehicle.
Usually, in the relevant situation of motor, be transformed to direct current (d.c.) through regulator 2 from the generation current of generator 1, level and smooth through electrolytic condenser 3, by the ignition switch 4 supply engine control gear 5 of conducting.
In addition, encourage the 1st switch part 8 of (conducting) via not controlled unit 10 from the generation current of generator 1, to battery 9 chargings, supply with and the irrelevant DC load 6 of engine start via the 2nd switch part 20 of not controlled unit 10 excitations (conducting) simultaneously.
In addition, about the unloaded revolution of motor, generally the generation power with generator 1 is designed to surpass the necessary electric power of vehicle.
Secondly, the action when engine start is described.
When battery 9 was in abundant charged state, by conducting ignition switch 4, engine controlling unit 5 utilized the power supply of battery 9, and regular event can ato unit.
As the starting state of this situation, activator switch 22 is arranged by open-minded, be used to drive the situation of starter motor 21, with the driver of two-wheel vehicle situation from peripheral operation recoil bar from the power supply of battery 9.
On the other hand, when battery 9 is in discharge condition (inadequate charged state), can not drive starter motor 21 from the power supply of battery 9, so start with the recoil bar.
At this moment, make ignition switch 4 conductings, during operation recoil bar, though generator 1 begins generating, as previously mentioned, the major part of the generation current of generator 1 flows into the battery 9 of discharge condition.
Thereby the supply voltage of engine controlling unit 5 does not rise, and engine controlling unit 5 can not regular event, thus can not normally realize fuel injection control or igniting, can not ato unit.
Therefore, the control unit 10 in the engine controlling unit 5, when the action when starting begins, the control signal of output drive (disconnection) the 1st switch part 8 usefulness.
Thus, owing to cut off the electric current that flows into battery 9 from generator 1, so the whole supply engine control gear 5 of the generation current of generator 1.
Thereby engine controlling unit 5 regular events can ato unit.
Above-mentioned action when unloading battery 9 too.
That is, when unloading battery 9, even ignition switch 4 conductings, because of power supply also not supply engine control gear 5 and control unit 10, so both also are the state of akinesia.
But when the driver operated the recoil bar, because of generator 1 begins generating, engine controlling unit 5 and control unit 10 supply powers began action.
In addition, meanwhile, because of control unit 10 excitation operations the 1st switch part 8, so then can similarly normally start.
When so normally starting, then, control unit 10 is according to the change of the detection information detection Air suction pipe pressure of Air suction pipe pressure sensor 11, the transit time behind the count enable.
Calculate the mean value of detected Air suction pipe pressure again, according to average detection engine loading state.
Here, as the decision condition of the engine loading state after starting, be that example illustrates it with situation with the upset condition of Air suction pipe pressure.
Control unit 10 is according to the mean value of Air suction pipe pressure, after being judged to be engine start through enough in case of necessity between, when the torque that motor takes place reaches enough value, just think and obtain sufficient generated energy from generator 1, change reaches opposable state to engine loading, so make the 1st switch part 8 be non-excitation (on state), connect from generator 1 to battery 9 current path.
Like this, can begin from the charging of 1 pair of battery 9 of generator.
Below, illustrating does not have the DC load of direct relation and the disconnection/connecting moves between generator 1 and the regulator 2 to engine start.
As previously mentioned, under the control of the control unit 10 in engine controlling unit 5, operate the 2nd switch part 20, the current path between disconnection/connection generator 1 and regulator 2 and the DC load 6.
Below, the action of the 2nd switch part 20 is described.
At first, in the situation that battery 9 is removed, when the driver connected ignition switch 4, engine controlling unit 5 began to start the action of usefulness, simultaneously, and the control signal of control unit 10 output drives (disconnection) the 2nd switch part 20 usefulness.
Like this, owing to cut off the electric current that flows into DC load 6 from generator 1, so the whole supply engine control gear 5 of the generation current of generator 1, engine controlling unit 5 and control unit 10 energy regular events make engine start.
In addition, above-mentioned action when battery 9 is removed too.
That is, though conducting ignition switch at this moment 4, because of power supply not supply engine control gear 5 and control unit 10, so both akinesias.
But when the driver operated the recoil bar, generator 1 began generating, so power supply supply engine control gear 5 and control unit 10 begin action.
In addition, meanwhile, because of control unit 10 excitation (disconnections) the 2nd switch parts 20, thus by with aforementioned same action, normally startup.
Below, control unit 10 is by detecting the upset condition of Air suction pipe pressure, and the transit time after the counting change is again according to the average detection engine loading state of Air suction pipe pressure, be judged to be behind the engine start through enough in case of necessity between, obtain enough generation torques.
At this moment, obtain sufficient generated energy from generator 1, DC load 6 changes are also reached the state that can be enough to resist, so control unit 10 non-excitations (conducting) the 2nd switch part 20, connection is from the current path of generator 1 to DC load 6, and light fixture class, alarm buzzer that makes head lamp, taillight, brake lamp, signaling lamp etc. etc. may be moved.
In addition, controlling component 10 is set the moment and the moment that makes the 20 non-excitations (conducting) of the 2nd switch part that makes the 8 non-excitations (conducting) of the 1st switch part in skew ground mutually, thus the moment that the electrical load of (when lamp is lighted) increases when the electrical load the when charging of the battery 9 that staggers begins increases with DC load 6 energisings.
Thus, can avoid engine rotation to change or motor machine abnormal condition that motor stops etc.
The upset condition of the Air suction pipe pressure under the single cylinder engine situation that is installed in two-wheel vehicle etc. is described here.
Fig. 2 illustrates the dynamic time sequence figure of the Air suction pipe pressure P of single cylinder engine, and the time that Air suction pipe pressure P is shown explicitly with the open and-shut mode of the open and-shut mode of the open and-shut mode of crank shaft angle signal, engine strokes, outlet valve, Aspirating valves and bypass tube air quantity control valve changes.
Among Fig. 2, Air suction pipe pressure P changes in being synchronized with 4 strokes of crank shaft angle signal (air-breathing, compression, expansion, exhaust) motor revolution, is maximum value before the firm opening of Aspirating valves, is minimum value before Aspirating valves has just cut out.
In addition,, the situation with Air suction pipe pressure P only is shown, but also can makes up throttle valve opening degree θ, also can also only judge the engine loading state with throttle valve opening degree θ for judging the engine loading state.
The sequential chart of throttle valve opening degree θ when Fig. 3 is the expression single cylinder engine and the relation of Air suction pipe pressure P illustrates with crank shaft angle signal correction with joining.
Among Fig. 3, when opening throttle valve and increase throttle valve opening degree θ, the minimum of visible Air suction pipe pressure P rises, and Air suction pipe pressure average value P a rises.
Therefore as seen, the average value P a of throttle valve opening degree θ and Air suction pipe pressure P has relation, and θ also may judge the engine loading state with the throttle valve opening degree.
Therefore, control unit 10 at first with reference to the detection information from Air suction pipe pressure sensor 11, detects Air suction pipe pressure (IMMERNE pressure) P at regular intervals basically.
Like this, by detecting the pulsation of Air suction pipe pressure P, utilize pulsation to judge that motor is in drive condition.
Then, judge the engine loading state by the average value in interval Pa that detects Air suction pipe pressure.Here, the size of average value in interval Pa is represented the engine loading state.
Again, as can be seen from Figure 3, because of the size of throttle valve opening degree θ is also represented the engine loading state, so also can be according to throttle valve opening degree θ detection of engine load condition from throttle valve position sensor 14.
From the current path of generator 1 to DC load 6, judge engine start finish after through certain hour after, connected by non-excitation (conducting) by the 2nd switch part 20.
On the other hand, to the current path of the charged side of battery 9, after the startup of motor is finished.For example detecting the moment that the driver operates accelerator pedal, connecting first by non-excitation (conducting) the 1st switch part 8.
The reason of the current path that the accelerator pedal operation back connection battery charge after engine start is finished is used is, for example, in idling conditions etc., when generator 1 connects the charged side of battery 9 of the insufficient deterioration of charged state, as previously mentioned, because of generation power is absorbed by battery 9, cause sizable voltage drop, the revolution of motor is descended, and, control unit 10 is resetted.
Below, with reference to the flow chart of Fig. 4, specify the above-mentioned processing sequence of the invention process form 1.
Fig. 4 illustrates the action of control unit 10, be illustrated in the engine stop-state of judging vehicle after, disconnect the processing before the current path of the charging usefulness of battery 9.
At first, when ignition switch 4 is switched on, when control unit (ECU) 10 begins to move, control unit 10 excitation (cut-out) the 1st and the 2nd switch parts 8,20, be cut to the current path of battery 9 and DC load 6, simultaneously, make to stop to judge time T s and drive judgement time T d initialization (clear 0), make the storing value initialization (step S1) of the pressure divergence value Δ P of the Air suction pipe pressure P in the certain hour.
Then, measure Air suction pipe pressure P at regular intervals, pressure divergence value Δ P (step S2) is obtained and stored to maximum value and the minimum value of the Air suction pipe pressure P of (for example 50msec) in the time according to the rules.
In addition, carry out " measurement of A. Air suction pipe pressure average value P a is handled " or " measurement of B. throttle valve opening degree θ is handled ", detection of engine load condition (step S3).
Then, judge that whether pressure divergence value Δ P is more than or equal to specified value α (corresponding to the minimum deviation value of engine-driving state) (step S2), if when judging Δ P＜α (being NO), make to stop to judge that time T s finishes counting, make simultaneously to drive and judge time T d initialization (clear 0) (step S5).
Then, judge to stop to judge time T s that if be judged to be Ts＜Ks (being NO), then (step S2) handled in the measurement of returning pressure deviate Δ P whether more than or equal to specified value kS (during the minimum of using corresponding to the final decision engine stop-state) (step S6).
In addition, in step 6,, just think that motor is in halted state, keep excitation (disconnection) state of the 1st and the 2nd switch part 8,20, be cut to the current path (step S7) of battery 9 and DC load 6, return step S2 if be judged to be Ts 〉=Ks (being YES).
On the other hand, among the step S4,, then, stop to judge time T s initialization (Ts=0), judge that to driving time T d finishes counting (step S8) simultaneously so make because motor is in drive condition if judge Δ P 〉=α (being YRS).
Then, judge that whether drive judgement time T d reaches more than or equal to specified value Kd (corresponding to the certain hour of final decision engine-driving state) (step S9), just returns step S2 if be judged to be Td＜Kd (being NO).
If in step S9, judge Td 〉=Kd (being YES), think that then motor is in drive condition, then, whether more than or equal to specified value K6, judge whether the torque that motor takes place is the state (step S10) that enough generation power of driver DC load 6 can take place according to engine loading state (pressure mean values Pa or throttle valve opening degree θ).
In the step 10 if judge engine loading state＜K6 (being NO), just directly return step S2, on the other hand, if judge engine loading state 〉=K6 (being YES), just think that the engine loading state is in for driving enough generating states of DC load 6, make the 20 non-excitations (conducting) of the 2nd switch part, connect DC load 6 (step S11).
Then, according to engine loading state (pressure mean values Pa or throttle valve opening degree θ) whether more than or equal to specified value K9 (＞K6), judge whether the torque that motor takes place is the state (step S12) that enough generation power of chargeable cell 9 can take place, be＜K9 (being NO) just directly to return step S2 if judge the engine loading state.
On the other hand, if judge engine loading state 〉=K9 (being YES), just think that the engine loading state is in the enough generating states for chargeable cell 9 among the step S12, make the 8 non-excitations (conducting) of the 1st switch part, be connected to the current path (step S13) of battery 9, return step S2.
Like this, in possessing generator 1 that the power that utilizes motor generates electricity, vehicle internal combustion engine control gear to the fuel injection system (sparger 16) of the fuel of the battery 9 of DC load 6 power supplies of control unit 10 and vehicle, control supply engine, by disconnecting the electric current that flows to battery 9 from generator 1 when the engine start, and disconnect the electric current that flows to DC load 6 (with starting irrelevant electrical load) from generator 1, just can not lean on the charged state of battery 9 that engine reliable ground is started.
In addition, behind engine start, by detecting the change of Air suction pipe pressure P, transit time after count enable begins, monitor the average value P a (or throttle valve opening degree θ) of Air suction pipe pressure simultaneously, the detection of engine load condition, when judge engine start finish after through necessary time enough, and when also fully obtaining the torque of motor generation, just think and to obtain enough generated energy from generator 1, can resist the change of the charging power of the change of DC load 6 and battery 9, connect current path from generator 1 to DC load 6 and battery 9.
Thus, can be with the time to being connected of DC load 6 and battery 9 load change of (charging to battery 9 begins, and the energising of DC load 6 is begun) impact and be suppressed to inferior limit, the undesired situation of motor such as can prevent that the rotation variation of motor or motor from stopping.
In addition, by setting the determinating reference value (specified value K6, K9) that connects permission usefulness is different values, the non-excitation (conducting) of moving the 1st and the 2nd switch part 8,20 constantly, the energising that the charging of battery 9 of staggering begins period and DC load 6 begins period, so the impact in the time of can disperseing the connection from 1 pair of each electrical load of generator, the undesired situation of motor such as can prevent really that the rotation variation of motor or motor from stopping.
In addition, control unit 10 is controlled the excitation/non-excitation of the 1st and the 2nd switch part 8,20, but also can only control the 1st switch part 8 to battery 9.
In addition, not only during engine start, and when engine running, also judge the situation of engine stop-state, also can utilize control unit 10 to carry out processing shown in Figure 4.
In addition, as the condition of contact of the current path of battery 9 being judged engine loading state of (step S12) usefulness and the engine loading state of the current path condition of contact of DC load 6 being judged (step S10) usefulness, with the common parameter of measuring at step S3, but also can try to achieve respectively separately.
As mentioned above, according to example 1 of the present invention, be installed in the motor (internal-combustion engine) of vehicle for control, have: the generator 1 that utilizes engine-driving output generation power, utilize the battery 9 of generation power charging to the electrical load power supply, the various sensors 11～15 of the operating condition of detection of engine, by 9 power supplies of generator 1 and battery, according to the control unit 10 of the fuel of operating condition control supply engine, 10 that drive by control unit, connect or disconnect from generator 1 to battery 9 the 1st current switch parts 8.
Various sensors 11～15 comprise the Air suction pipe pressure sensor 11 of the Air suction pipe pressure P of detection of engine, control unit 10 has according to operating condition judges that (step S2～S13), the 1st judging part is judged the signal that reply the 1st switch part 8 is exported according to the upset condition of Air suction pipe pressure P to the 1st a kind of judging part of tackling in the 1st switch part 8 output the 1st cut-off signals or the 1st connection signal.
In addition, when control unit 10 begins in response to the action of control unit 10, export the 1st cut-off signal (step S1), through back (step S9) during certain, export the 1st according to the result of determination (step S12) of the 1st judging part and connect signal (step S13) after the change of Air suction pipe pressure P after the action of control unit 10 begins.
In addition, control unit 10 has the 1st mean value arithmetic unit of the 1st average value P a of the 1st average unit time of computing Air suction pipe pressure P, with the 1st load condition detection part (step S3) according to the 1st load condition of the 1st average value P a or throttle valve opening degree θ detection of engine, after the change of the Air suction pipe pressure of the 1st judging part after the action of control unit 10 begins through after during certain, when the 1st load condition is represented more than or equal to the high load condition (step S12) of the 1st specified value (specified value K9), generate the result of determination (step S13) that output the 1st connects signal (the non-excitation pulse of the 1st switch part 8) usefulness.
The 1st switch part 8 is made of normally closed switch, usually connect the 1st current path (current path of 9 charging usefulness) from generator 1 to battery, control unit 10 connects signal with the 1st cut-off signal or the 1st and outputs to the 1st switch part 8 according to the result of determination of the 1st judging part.
In addition, possess drive by control unit 10, connect or disconnect generator 1 with not to the 2nd switch part 20 of the 2nd current path between the direct relevant DC load 6 of engine start, control unit 10 has: the detection part of the load condition of detection of engine load condition (step S3), be connected the 2nd judging part (step S10) of signal with judge reply the 2nd switch part 10 output the 2nd cut-off signals or the 2nd according to operating condition, the 2nd judging part is judged the signal of reply the 2nd switch part 20 outputs according to the upset condition of Air suction pipe pressure P.
When control unit 10 begins in response to the action of control unit 10, export the 2nd cut-off signal (step S1), through back (step S9) during certain, export the 2nd according to the result of determination (step S10) of the 2nd judging part and connect signal (the non-excitation pulse of the 2nd switch part 20) (step S11) after the change of Air suction pipe pressure P after the action of control unit 10 begins.
In addition, control unit 10 has the 2nd mean value arithmetic unit of the 2nd average value P a of average the 2nd unit time of computing Air suction pipe pressure P, with the 2nd load condition detection part (step S3) according to the 2nd load condition of the 2nd average value P a or throttle valve opening degree θ detection of engine, after the change of the Air suction pipe pressure P of the 2nd judging part (step S10) after the action of control unit 10 begins through after during certain, when the 2nd load condition is represented more than or equal to the high load condition of the 2nd specified value (specified value K6), generate output the 2nd and connect the result of determination that signal is used.
The 2nd switch part 20 is made of normally closed switch, usually connect the 2nd current path (from the current path of generator 1 to DC load 6), control unit 10 connects signal with the 2nd cut-off signal or the 2nd and outputs to the 2nd switch part 20 according to the result of determination of the 2nd judging part (step S10).
Thus, can obtain such combustion engine control, can be under the control of control unit 10, when engine start action beginning, disconnection is from generator 1 to battery 9 or each current path of DC load 6 (light fixture class), and according to the result of determination of thereafter engine operating status (change of Air suction pipe pressure P etc.), make it to connect (or continuing to disconnect), even the charged state at battery 9 descends, engine start at need, also can make fuel injection system (sparger 16), ignition mechanism (spark coil 19 and igniter plug 23) is moved reliably, thereby makes engine start.
In addition,, alleviate electrical load, therefore can obtain to make fuel injection system, ignition mechanism to move reliably, make the combustion engine control of engine start motor owing to can when engine start, cut off DC load 6.
In addition, because the 1st and the 2nd judging part (step S12, S10) is carried out determination processing, the moment (step S13) that makes output the 1st connect signal is offset certain hour mutually with the 2nd moment (step S11) that is connected signal of output, therefore can obtain when connecting generator 1 with battery 9 and DC load 6, can alleviate the change of the electrical load of motor, can be prevented the combustion engine control that the rotation variation of motor or motor such as stop at the undesired situation of motor.
Claims (9)
1. a combustion engine control is controlled the internal-combustion engine that is installed in vehicle, it is characterized in that, comprises
Utilize the generator of described internal combustion engine drive, output generation power;
Utilize the charging of described generation power, and the battery that described electrical load is powered;
Detect the various sensors of the operating condition of described internal-combustion engine;
By described generator and described powered battery, and according to the control unit of described operating condition control to described internal-combustion engine fueling; And
Drive and be switched on or switched off the 1st switch part of the 1st current path by described control unit from described generator to described battery,
Described various sensor comprises the Air suction pipe pressure sensor of the Air suction pipe pressure that detects described internal-combustion engine and detect to adjust at least one side in the throttle valve position sensor of throttle valve opening degree of throttle valve of suction air quantity of described internal-combustion engine,
Described control unit has according to described operating condition judgement should export the 1st cut-off signal or the 1st one the 1st judging part that connects in the signal to described the 1st switch part,
Described the 1st judging part is judged the signal that should export described the 1st switch part according at least one side's upset condition of described Air suction pipe pressure and described throttle valve opening degree.
2. combustion engine control as claimed in claim 1 is characterized in that,
Described control unit,
When beginning, export described the 1st cut-off signal in response to the action of described control unit,
Through after during certain,, export the described the 1st and connect signal after the described Air suction pipe pressure change after the action of described control unit begins according to the result of determination of described the 1st judging part.
3. combustion engine control as claimed in claim 2 is characterized in that,
Described control unit has
The 1st mean value arithmetic unit of the 1st mean value of the 1st average unit time of the described Air suction pipe pressure of computing; And
Detect the 1st load condition detection part of the 1st load condition of described internal-combustion engine according to described the 1st mean value or described throttle valve opening degree,
Described the 1st judging part
Through after during certain, when described the 1st load condition is represented more than or equal to the high load condition of the 1st specified value, generate output the described the 1st and connect the result of determination that signal is used after the described Air suction pipe pressure change after the action of described control unit begins.
4. combustion engine control as claimed in claim 1 is characterized in that,
Described the 1st switch part connects described the 1st current path usually,
Described control unit connects signal with described the 1st cut-off signal or the described the 1st and outputs to described the 1st switch part according to the result of determination of described the 1st judging part.
5. combustion engine control as claimed in claim 1 is characterized in that,
Possess by described control unit and drive and be switched on or switched off described generator and the startup of described internal-combustion engine do not had the 2nd switch part of the 2nd current path between the load of direct contribution,
Described control unit has the load condition detection part of the load condition that detects described internal-combustion engine; And
Judge the 2nd judging part that should export the 2nd cut-off signal or the 2nd connection signal to described the 2nd switch part according to described operating condition,
Described the 2nd judging part is judged the signal that should export described the 2nd switch part according at least one side's upset condition of described Air suction pipe pressure and described throttle valve opening degree.
6. combustion engine control as claimed in claim 1 is characterized in that,
Described control unit,
When beginning, export described the 2nd cut-off signal in response to the action of described control unit,
Through after during certain,, export the described the 2nd and connect signal after the described Air suction pipe pressure change after the action of described control unit begins according to the result of determination of described the 2nd judging part.
7. combustion engine control as claimed in claim 6 is characterized in that,
Described control unit has
The 2nd mean value arithmetic unit of the 2nd mean value of the 2nd average unit time of the described Air suction pipe pressure of computing; And
Detect the 2nd load condition detection part of the 2nd load condition of described internal-combustion engine according to described the 2nd mean value or described throttle valve opening degree,
Described the 2nd judging part
Through after during certain, when described the 2nd load condition is represented more than or equal to the high load condition of the 2nd specified value, generate output the described the 2nd and connect the result of determination that signal is used after the described Air suction pipe pressure change after the action of described control unit begins.
8. combustion engine control as claimed in claim 5 is characterized in that,
Described the 2nd switch part connects described the 2nd current path usually,
Described control unit connects signal with described the 2nd cut-off signal or the described the 2nd and outputs to described the 2nd switch part according to the result of determination of described the 2nd judging part.
9. combustion engine control as claimed in claim 1 is characterized in that,
The the described the 1st and the 2nd judging part is carried out determination processing, and the moment that makes output the described the 1st connect signal is connected mutual skew of the moment certain hour of signal with output the described the 2nd.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2006008784A JP4107611B2 (en) | 2006-01-17 | 2006-01-17 | Internal combustion engine control device |
| JP2006008784 | 2006-01-17 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101004148A true CN101004148A (en) | 2007-07-25 |
| CN100585147C CN100585147C (en) | 2010-01-27 |
Family
ID=38447960
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200610128525A Expired - Fee Related CN100585147C (en) | 2006-01-17 | 2006-08-31 | Internal combustion control device |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP4107611B2 (en) |
| CN (1) | CN100585147C (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101397969B (en) * | 2007-09-25 | 2010-12-08 | 三菱电机株式会社 | Combustion engine control device |
| CN107420242A (en) * | 2017-05-24 | 2017-12-01 | 内蒙古北方重型汽车股份有限公司 | Electric wheel mining vehicle starts voltage drop control circuit |
| CN110077242A (en) * | 2018-01-26 | 2019-08-02 | 株式会社斯巴鲁 | Vehicle power source device |
| CN113644702A (en) * | 2020-04-24 | 2021-11-12 | 丰田自动车株式会社 | Power supply circuit control device, power supply circuit control method, and storage medium |
-
2006
- 2006-01-17 JP JP2006008784A patent/JP4107611B2/en not_active Expired - Fee Related
- 2006-08-31 CN CN200610128525A patent/CN100585147C/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101397969B (en) * | 2007-09-25 | 2010-12-08 | 三菱电机株式会社 | Combustion engine control device |
| CN107420242A (en) * | 2017-05-24 | 2017-12-01 | 内蒙古北方重型汽车股份有限公司 | Electric wheel mining vehicle starts voltage drop control circuit |
| WO2018214469A1 (en) * | 2017-05-24 | 2018-11-29 | 内蒙古北方重型汽车股份有限公司 | Circuit for controlling activation voltage drop of electric-drive mining vehicle |
| CN107420242B (en) * | 2017-05-24 | 2019-04-16 | 内蒙古北方重型汽车股份有限公司 | Electric wheel mining vehicle starts voltage drop control circuit |
| CN110077242A (en) * | 2018-01-26 | 2019-08-02 | 株式会社斯巴鲁 | Vehicle power source device |
| CN113644702A (en) * | 2020-04-24 | 2021-11-12 | 丰田自动车株式会社 | Power supply circuit control device, power supply circuit control method, and storage medium |
| CN113644702B (en) * | 2020-04-24 | 2024-02-23 | 丰田自动车株式会社 | Control device for power supply circuit, control method for power supply circuit, and storage medium |
Also Published As
| Publication number | Publication date |
|---|---|
| CN100585147C (en) | 2010-01-27 |
| JP4107611B2 (en) | 2008-06-25 |
| JP2007192051A (en) | 2007-08-02 |
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