Full-automatic intelligent start protection integrated controller

Abstract

The utility model discloses a full-automatic intelligent starting protection integrated controller which comprises a starter and an original vehicle starting relay, the starter is connected with a slow meshing starting relay, and the output positive electrode of the original vehicle starting relay is connected to the positive electrode of the slow meshing starting relay. The negative electrode of the slow meshing starting relay is electrically connected with a starting protection controller, and the starting protection controller comprises a frequency voltage conversion chip, a potentiometer, a divider resistor, a forced starting switch, an operational amplifier, a signal relay, a field effect transistor and a 555 timer. By the adoption of the structure, rotating speed signals of the generator on an automobile can be received through the frequency voltage conversion chip, the potentiometer is used for controlling the starter to stop working in advance when the speed of the generator is lower than the idling speed, and abrasion of the starter is reduced to the maximum extent. According to the utility model, the eight fault display lamps are arranged, so that a worker can be helped to quickly and accurately find out fault parts.

Description

TECHNICAL FIELD

[0001] The utility model relates to starter starting protection technical field, specifically point to a full -automatic intelligent starting protection integrated controller. BACKGROUND

[0002] Because of various reasons such as the starter on the car winter starting difficulty causes the starter to work for a long time, or the body circuit short circuit causes the starter to work abnormally, or burns for a long time, the above-mentioned situation is commonly known as various reasons such as starting failure, so far the original vehicle starting control strategy is half of the ignition switch artificial control, half of the vehicle computer or generator control, the first kind of artificial control by ignition switch is more than 20 seconds or even 30 seconds when starting the vehicle for a long time, which will cause the starter to heat or even burn, and with the increase of vehicle age, the body circuit will inevitably appear short circuit fault, which will cause the starter to start abnormally or the starter to burn unexpectedly without the driver knowing.

[0003] The second is controlled by the body computer or generator computer, which is mostly designed and configured by the host factory of the vehicle, but this control strategy still has great defects, the first line is complex and has a high failure rate, and many times the problem of the invisible line or sensor will cause the vehicle to be unable to start, and the driver can only connect the starter directly to make the vehicle work normally, which has great risk, and even if the starter is controlled by the computer, the starter is also subject to the fate of burning due to circuit failure, although the starter works for a short time, the failure rate of the starter is still high, even if the starter is well maintained, the problem of no response or accidental burning of the starter on the road cannot be avoided, and most drivers do not have the awareness of maintaining the starter, in the normal use of the starter, when maintaining the starter without starting protection, it is found that the various parts of the starter such as bearing, gear, stator and rotor have a lot of wear, which seriously affects the safety and stability of the starter.

[0004] The starting protection device in the prior art has only two control modes, high control or low control, whether the starter is controlled by the ignition switch or the computer, the high control is to connect the slow engagement starting relay shell and the negative electrode to control the starter to work by high level signal, and the low control is to control the slow engagement starting relay by two lines, one line is always on high level, and the other line is controlled by the low level signal output by the computer, but no matter which control strategy, the accidental work caused by the body circuit failure cannot be avoided, such as the accidental connection of the high control starter circuit to the positive electrode, or the damage and short circuit of the low control starter circuit, in daily maintenance, the starter with starting protection mode also cannot avoid accidental burning, therefore, the starter controlled by the computer also cannot avoid burning.

[0005] Therefore, a full-automatic intelligent starting protection integrated controller becomes a problem to be solved in the whole society. Utility model content

[0006] To solve the above technical problems, the utility model provides a technical scheme: a full-automatic intelligent starting protection integrated controller, including a starter and an original vehicle starting relay, the starter is connected with a slow engagement starting relay, the anode of the original vehicle starting relay output is connected on the anode of the slow engagement starting relay, the cathode of the slow engagement starting relay is electrically connected with a starting protection controller, the starting protection controller includes a frequency voltage conversion chip, a potentiometer, a voltage dividing resistor, a forced starting switch, an operational amplifier, a signal relay, a field effect tube and a 555 timer, the voltage dividing resistor is used for electrically connected with the operational amplifier, the voltage dividing resistor is used for with the starting protection controller pin connection, the output end of the operational amplifier is used for connecting the signal relay, the signal relay is used for being connected with the field effect tube, the pin of the starting protection controller receives a starting signal, one way signal enters the operational amplifier through the voltage dividing resistor, enters the signal relay after signal amplification through the operational amplifier, and the signal relay controls the slow engagement starting relay to work through the field effect tube.

[0007] Another way signal enters the 555 timer, and the 555 timer simultaneously charges the capacitor, and after full charging, the 555 timer outputs a voltage control signal relay 1 to cut off the gate input of the field effect tube, so as to realize delay protection.

[0008] Further, the output voltage of the 555 timer is connected with the signal relay, and the signal relay is used for connecting the field effect tube.

[0009] Further, the No. 1 pin of the frequency voltage conversion chip is electrically connected with the w pole No. 4 angle of the generator, and the frequency voltage conversion chip is used for converting the frequency signal output by the w pole No. 4 angle of the generator into a voltage signal.

[0010] Further, the output end of the frequency voltage conversion chip is used for connecting the No. 3 pin of the operational amplifier, and the No. 2 pin of the operational amplifier is used for connecting the potentiometer.

[0011] Further, the signal relay is electrically connected with a 12095 electromagnetic buzzer.

[0012] Further, the starting protection controller is provided with a first LED indicator light, a second LED indicator light, a third LED indicator light, a fourth LED indicator light, a fifth LED indicator light, a sixth LED indicator light, a seventh LED indicator light and an eighth LED indicator light, the first LED indicator light is used for being connected at an ON position of an ignition switch, so as to show whether the ignition switch works normally, the second LED indicator light is used for being connected at a starting position of the ignition switch, so as to serve as a starting indication of the ignition switch, the third LED indicator light is used for being connected at a starting relay, so as to serve as a starting indication of the starting relay, the fourth LED indicator light is used for being connected at an output control end of the slow engagement starting relay, so as to serve as a starting indication of the slow engagement starting relay, the fifth LED indicator light is used for being connected at an output end of a magnetic switch, so as to serve as a working indication of the magnetic switch, the sixth LED indicator light is used for being connected in parallel with a generator rotating speed signal and a frequency voltage conversion chip No. 1 pin, so as to serve as a rotating speed signal indication, the seventh LED indicator light is connected at an output end of a relay K6, so as to serve as a starting protection indication, and the eighth LED indicator light is controlled by a forced starting switch to open an indication light, so as to serve as a forced starting indication.

[0013] Compared with the prior art, the utility model has the advantages that:

[0014] The utility model discloses a frequency voltage conversion chip, potentiometer, dividing resistor, forced starting switch, operational amplifier, signal relay, field effect tube and 555 timer are combined, the rotating speed signal of the generator on the automobile can be received through the frequency voltage conversion chip, the generator has already rotated below the idling speed and ended work in advance when the starter motor is below the generator idling speed through the potentiometer, the maximum limit reduces the starter motor wear, and the problem of difficult starting in winter in the prior art is solved.

[0015] The slow engagement starting relay in the prior art is changed from high-end control to two-end control, and the starting negative pole output by the starting protection controller is independent of the generator, so that the failure rate of the starting protection controller is extremely low during use.

[0016] The 555 timer is arranged in the starting protection controller, and the working time of the starter motor can be accurately controlled.

[0017] The utility model discloses a forced starting switch can be opened when the starter has no response when the problem of vehicle body circuit appears, and the ignition switch can directly control the starter to work, thereby avoiding the loss caused by the problem of starting circuit.

[0018] The utility model discloses 8 fault display lamps are set up, can accurately prompt whether each spare part work in starting circuit is normal, solved the maintenance worker in the prior art can not find corresponding trouble problem fast and accurately, the above-mentioned fault display lamp can help the staff to find the trouble spare part fast and accurately, saved the maintenance time of staff, promoted the maintenance efficiency of staff. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 It is the circuit board schematic view of the full -automatic intelligent starting protection integrated controller of the utility model;

[0020] Figure 2 It is the circuit control schematic view of the full -automatic intelligent starting protection integrated controller of the utility model.

[0021] Among them, 1, frequency voltage conversion chip, 2, potentiometer, 3, forced starting switch, 4, operational amplifier, 5, signal relay, 6, field effect transistor, 7, 555 timer, 8, first LED pilot lamp, 9, second LED pilot lamp, 10, third LED pilot lamp, 11, fourth LED pilot lamp, 12, fifth LED pilot lamp, 13, sixth LED pilot lamp, 14, seventh LED pilot lamp, 15, eighth LED pilot lamp, 16, timer, 17, 12095 electromagnetic buzzer. DETAILED DESCRIPTION

[0022] The utility model makes further detailed description in combination with the drawings.

[0023] The utility model is introduced in detail in combination with the drawings.

[0024] The utility model discloses a kind of full-automatic intelligent starting protection integrated controllers in specific implementation, including starter and original vehicle starting relay, the starter is connected with slow engagement starting relay, the positive pole of original vehicle starting relay output is connected on the positive pole of the slow engagement starting relay, the negative pole of the slow engagement starting relay is electrically connected with starting protection controller, and the starting protection controller includes frequency voltage conversion chip 1, potentiometer 2, voltage dividing resistor, forced starting switch 3, operational amplifier 4, signal relay 5, field effect tube 6 and 555 timer 7, the voltage dividing resistor is used to be electrically connected with operational amplifier 4, the voltage dividing resistor is used to be connected with the pin of the starting protection controller, the output end of the operational amplifier 4 is used to connect the signal relay 5, the signal relay 5 is used to be connected with field effect tube 6, the pin of the starting protection controller receives starting signal, one-way signal enters operational amplifier 4 through the voltage dividing resistor, enters signal relay 5 after signal amplification through operational amplifier 4, and signal relay 5 controls slow engagement starting relay work through field effect tube 6.

[0025] Another signal enters 555 timer 7, and 555 timer 7 simultaneously charges capacitor after charging, and after full charging, 555 timer 7 output voltage controls signal relay 5 to cut off field effect tube gate input, to realize delay protection.

[0026] Embodiment one:

[0027] In the specific work, the slow engagement starting relay in prior art is changed from high-end control to two-end control, and the specific connection is that the positive pole of original vehicle starting relay output is connected on the positive pole of the slow engagement starting relay, and the negative pole of the slow engagement starting relay is electrically connected with starting protection controller, so that the protection strategy such as neutral protection of original vehicle is not cancelled.

[0028] Starting protection controller pin receives W pole rotating speed signal converted from voltage corresponding to current rotating speed output by alternator on vehicle, and the higher the rotating speed is, the higher the output voltage is, when starting protection controller pin receives starting signal, because vehicle has no rotating speed, pin No.

[0029] The frequency voltage conversion chip 1 is connected with the w pole 4 of the generator, and the frequency voltage conversion chip is used for converting the frequency signal output by the w pole 4 of the generator into a voltage signal.

[0030] The forced starting is used in an emergency situation, and the forced starting switch 8 is opened to directly control the forced starting output 24V positive by the ignition switch, one way is used for directly controlling the slow mesh starting relay, and one way is controlled by the voltage dividing resistor to output the negative of the field effect tube to the slow mesh starting relay to force the starter to work.

[0031] In the embodiment, the slow mesh starting relay in the prior art is changed from high-end control to two-end control, and the starting negative output by the starting protection controller is independent of the generator, so that the failure rate of the starting protection controller in use is extremely low.

[0032] The three-digit code of the utility model is started by the stm32 single-chip microcomputer control built-in counting program, and the work of the starter is added once and power-off memory, so as to remind the driver to maintain the starter regularly.

[0033] As a further description of the utility model, the output voltage of the 555 timer is connected with the signal relay, and the signal relay is used for connecting the field effect tube.

[0034] As a further description of the utility model, the 1st pin of the frequency voltage conversion chip is electrically connected with the w pole 4 of the generator, and the frequency voltage conversion chip is used for converting the frequency signal output by the w pole 4 of the generator into a voltage signal.

[0035] As a further description of the utility model, the output end of the frequency voltage conversion chip is used for connecting the 3rd pin of the operational amplifier, and the 2nd pin of the operational amplifier is used for connecting the potentiometer.

[0036] As a further explanation of this utility model, the starter protection controller is equipped with a 12095 electromagnetic buzzer 17. Through the structural design of the electromagnetic buzzer, this utility model ensures that the buzzer will promptly sound an alarm when the starter motor unexpectedly operates without the ignition switch being turned on. Because the generator is quite noisy when running, the driver may not hear or notice if the starter motor unexpectedly operates after the generator has started. The buzzer will sound to alert the driver when the starter motor unexpectedly operates, thus providing a timely warning.

[0037] Example 2:

[0038] The start-up protection controller is equipped with a first LED indicator 8, a second LED indicator 9, a third LED indicator 1, a fourth LED indicator 11, a fifth LED indicator 12, a sixth LED indicator 13, a seventh LED indicator 14, and an eighth LED indicator 15. The first LED indicator 8 is connected to the ON position of the ignition switch, as shown in the circuit diagram. Figure 2 As shown at U1-1 in the circuit diagram, the second LED indicator 9 is used to indicate whether the ignition switch is working properly. It is connected to the ignition switch in the start position, as shown by R1-2 in the circuit diagram, and serves as an ignition switch start indicator. It will not function when the ignition switch is not turned on. The third LED indicator 10 is connected to the start relay, as shown in the circuit diagram. Figure 2 As shown in R9-1, the fourth LED indicator 11 is used as a start indicator for the start relay and is connected to the output control terminal of the slow-engage start relay K6 to serve as a start indicator for the slow-engage start relay. The fifth LED indicator 12 is connected to the output terminal of the magnetic switch, as shown in the circuit diagram. Figure 2 As shown in K2-1, the sixth LED indicator 13 is used for magnetic switch operation indication and is connected in parallel with the generator speed signal and pin 1 of the frequency-voltage conversion chip for speed signal indication. The seventh LED indicator 14 is connected to the output terminal of relay K6 for start protection indication. The eighth LED indicator 15 is controlled by the forced start switch to turn on the indicator light for forced start indication.

[0039] In the working process of the embodiment, whether the ignition switch works normally can be judged through the first LED indicator 8, whether the ignition switch starts normally can be judged through the second LED indicator 9, whether the starting relay works normally can be judged through the third LED indicator 10, whether the slow engagement starting relay works normally can be judged through the fourth LED indicator 11, whether the magnetic switch works normally can be judged through the fifth LED indicator 12, whether the speed signal of the generator is received can be judged through the sixth LED indicator 13, whether the starting protection is turned on can be judged through the seventh LED indicator 14, and whether the forced starting occurs can be judged through the eighth LED indicator 15. When the LED indicator is extinguished, it indicates that the component works abnormally, and when the LED indicator is lighted, it indicates that the component works normally. The eight groups of indicators can help the maintenance worker to quickly find the fault point and the fault reason, and improve the maintenance efficiency of the maintenance worker.

[0040] As a further elaboration of the utility model, the frequency voltage conversion chip is LM2907N-8.

[0041] As a further elaboration of the utility model, the starting protection controller is provided with a timer 16, and three-digit numbers in the timer are controlled by an stm32 single-chip microcomputer control built-in counting program. When the starter works once, the power is turned off and the memory is added by one, so as to remind the driver to regularly maintain the starter.

[0042] The utility model and its implementation mode have been described above, and this description is not restrictive. The embodiment shown in the drawings is only one of the embodiments of the utility model, and the actual structure is not limited thereto. In summary, if a person skilled in the art is inspired thereby, without departing from the creative purpose of the utility model, similar structural modes and embodiments can be designed without creativity, which should belong to the protection scope of the utility model.

Claims

1. A fully automatic intelligent start protection integrated controller, comprising a starter motor and a vehicle starter relay, wherein a slow-engagement starter relay is connected to the starter motor, and the positive terminal of the vehicle starter relay is connected to the positive terminal of the slow-engagement starter relay, characterized in that: The negative terminal of the slow-engagement start relay is electrically connected to a start protection controller. The start protection controller includes a frequency-to-voltage conversion chip, a potentiometer, a voltage divider resistor, a forced start switch, an operational amplifier, a signal relay, a field-effect transistor, and a 555 timer. The voltage divider resistor is electrically connected to the operational amplifier and to the pin of the start protection controller. The output terminal of the operational amplifier is connected to the signal relay, which is connected to the field-effect transistor. The pin of the start protection controller receives a start signal. One signal enters the operational amplifier through the voltage divider resistor. After being amplified by the operational amplifier, the signal enters the signal relay. The signal relay is controlled by the field-effect transistor to start the relay in a slow engagement manner. Another signal enters the 555 timer, which simultaneously charges the capacitor. Once fully charged, the 555 timer outputs a voltage control signal to relay 1, which then cuts off the gate input of the MOSFET to achieve delay protection.

2. The fully automatic intelligent start-up protection integrated controller according to claim 1, characterized in that: The output voltage of the 555 timer is connected to a signal relay, which is used to connect to a field-effect transistor.

3. The fully automatic intelligent start-up protection integrated controller according to claim 1, characterized in that: Pin 1 of the frequency-to-voltage conversion chip is electrically connected to pin 4 of the generator's W pole. The frequency-to-voltage conversion chip is used to convert the frequency signal output from pin 4 of the generator's W pole into a voltage signal.

4. The fully automatic intelligent start-up protection integrated controller according to claim 1, characterized in that: The output terminal of the frequency-to-voltage conversion chip is used to connect to pin 3 of the operational amplifier, and pin 2 of the operational amplifier is used to connect to a potentiometer.

5. The fully automatic intelligent start-up protection integrated controller according to claim 4, characterized in that: The start-up protection controller is equipped with a 12095 electromagnetic buzzer.

6. The fully automatic intelligent start-up protection integrated controller according to claim 4, characterized in that: The start-up protection controller is equipped with a first LED indicator, a second LED indicator, a third LED indicator, a fourth LED indicator, a fifth LED indicator, a sixth LED indicator, a seventh LED indicator, and an eighth LED indicator. The first LED indicator is connected to the ON position of the ignition switch to indicate whether the ignition switch is working properly. The second LED indicator is connected to the OFF position of the ignition switch to indicate ignition switch activation. The third LED indicator is connected to the start-up relay to indicate start-up relay activation. The fourth LED indicator is connected to the output control terminal of the slow-engagement start-up relay to indicate slow-engagement start-up relay activation. The fifth LED indicator is connected to the output terminal of the magnetic switch to indicate magnetic switch operation. The sixth LED indicator is connected in parallel with the generator speed signal and pin 1 of the frequency-voltage conversion chip to indicate speed signal. The seventh LED indicator is connected to the output terminal of relay K6 to indicate start-up protection. The eighth LED indicator is illuminated by the forced start switch to indicate forced start.

7. The fully automatic intelligent start-up protection integrated controller according to claim 1, characterized in that: The frequency-to-voltage conversion chip is model LM2907N-8.

8. The fully automatic intelligent start-up protection integrated controller according to claim 5, characterized in that: The start-up protection controller is equipped with a timer. The three digits in the timer are controlled by an STM32 microcontroller with a built-in counting program. Each time the starter motor works, the count increments by one to remember when the power is cut off, so as to remind the driver to perform regular maintenance on the starter motor.

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