Starting and starting integrated engine controller with assistance
By integrating the reverse drag and rectifier circuits and using MOSFETs to control the switching subunit, the power conversion of the generator unit is realized, which solves the problems of circuit complexity and maintenance difficulties in the prior art, simplifies the circuit structure and provides starting assistance.
Patent Information
- Application Number
- CN202520807012.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-25
- Publication Date
- 2026-02-13
- Estimated Expiration
- 2035-04-25
AI Technical Summary
The existing engine's reverse drag and rectifier circuits are independent and complex, resulting in a large number of components and making inspection and maintenance difficult.
By integrating or sharing the reverse drag and rectifier circuits, using MOSFETs as switching transistors, and controlling the switching subunits through the control unit, the conversion between AC and DC power is achieved, simplifying the circuit structure.
It reduces the complexity of the circuit unit, simplifies the inspection and maintenance process, and provides additional power to assist engine starting when needed.
Smart Images
Figure CN223908309U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the technical field of engine equipment, concretely relates to a start-up and inspiration integrated engine controller with assistance. BACKGROUND
[0002] The main components of the engine include a starting motor, a generator winding and a storage battery; during starting, the storage battery supplies power to the starting motor, the starting motor drives the engine crankshaft to rotate, the engine completes initial operation, and can operate by itself until the generator winding supplies power to the storage battery through a voltage regulation circuit.
[0003] Among them, as shown in the accompanying drawings Figure 1 When the generator charges the storage battery, the power is usually output to the storage battery (battery) through a rectifier circuit (M1 rectifier bridge), and when the storage battery drives the starting motor, the starting motor is driven through a reverse traction starting circuit (M2 drives MOS), wherein the reverse traction and the rectifier charging circuit are independent of each other, the reverse traction starting circuit does not work after the generator is ignited, resulting in resource waste; the circuit components are more and more complex, and the maintenance and repair difficulty is large. UTILITY MODEL CONTENTS
[0004] I. Technical problems to be solved
[0005] The utility model discloses a start-up and inspiration integrated engine controller with assistance, which integrates or shares the reverse traction and the rectifier circuit, so as to reduce the number of components and the maintenance difficulty.
[0006] II. Specific technical scheme
[0007] A start-up and inspiration integrated engine controller with assistance, comprising a storage battery, a generator unit, a circuit unit and a control unit which are electrically connected to each other, the circuit unit comprises switch subunits G1, G2, G3, G4, G5 and G6, the output end of the control unit is connected with the control end of each switch subunit, the positive pole of the storage battery is electrically connected with the output end of the switch subunit G1, G3 and G5 respectively, the negative pole of the storage battery is electrically connected with the input end of the switch subunit G2, G4 and G6, the generator unit comprises a generator winding, the U pole of the generator winding is electrically connected with the input end of the switch subunit G1 and the output end of the switch subunit G2 respectively, the V pole of the generator winding is electrically connected with the input end of the switch subunit G3 and the output end of the switch subunit G4 respectively, and the W pole of the generator winding is electrically connected with the input end of the switch subunit G5 and the output end of the switch subunit G6 respectively.
[0008] Realization principle and working principle:
[0009] In the scheme, through the setting of the control unit, a plurality of switch sub-units can be controlled; wherein, when the engine is normally running, the control unit converts the alternating current generated by the generator unit into direct current through on-off control of the switch sub-unit and transmits it to the storage battery; when the engine needs to be started, the control unit controls the on-off of the switch sub-unit, so that the direct current of the storage battery is converted into alternating current and then transmitted to the generator unit, so that the generator unit rotates and further drives the engine crankshaft to rotate, reducing the difficulty of starting the engine; at the same time, unlike the prior art, the control unit integrates or shares the reverse traction and rectifier circuit, greatly reducing the complexity of the circuit unit and making maintenance more convenient.
[0010] As a preferred, the switch sub-unit G1, the switch sub-unit G2, the switch sub-unit G3, the switch sub-unit G4, the switch sub-unit G5, the switch sub-unit G6 are MOS tube G1, MOS tube G2, MOS tube G3, MOS tube G4, MOS tube G5, MOS tube G6 respectively; the control end, the output end and the input end of each switch sub-unit are G pole, D pole and S pole of the MOS tube respectively; the beneficial effect of the present preferred is that the MOS tube is used as the switch tube, the on-off of the MOS tube can be controlled through the pulse output of the control unit, which is simple and convenient, and the pulse output can be controlled, which is more convenient for rectification and stability of electric energy.
[0011] As a preferred, the control unit includes a microcontroller and a plurality of half-bridge drive sub-units, the output end of the microcontroller is connected with the input end of the half-bridge drive unit, and the output end of the half-bridge drive unit is connected with the control end of the corresponding switch sub-unit; the beneficial effect of the present preferred is that the control unit sends control signals to the half-bridge drive sub-unit, and the half-bridge drive sub-unit sends pulse signals to drive the on or off of the switch sub-unit after receiving the control signals.
[0012] As a preferred, the control unit further includes a Hall detection sub-unit, which is used for detecting the position and speed of the engine crankshaft, and is also used for detecting the position of the camshaft and knock of the engine; the beneficial effect of the present preferred is that through the detection signal of the Hall detection sub-unit, the control unit can control the circuit unit according to the detection signal, so that the power generation of the generator is more stable.
[0013] As a preferred, the control unit further includes a current and voltage acquisition sub-unit, which is used for acquiring voltage or current values in the circuit unit; the beneficial effect of the present preferred is that the control unit rectifies the generated electric energy according to the acquired current or voltage parameters, so that it meets the set requirements.
[0014] As preferred, the control unit further comprises an engine load acquisition subunit, and the control unit drives the circuit unit according to the load signal acquired by the engine load acquisition subunit, thereby realizing the on-off control of the circuit unit and the current flow control in the circuit unit; the preferred embodiment has the beneficial effect that, when the control unit identifies that the load is too large, the control unit controls the storage battery to reversely drive the generator, so that the generator temporarily cooperates with the engine to run, and the engine temporarily obtains greater kinetic energy.
[0015] As preferred, the control unit further comprises a load demand input subunit, and the load demand input subunit is used for load signal input; the control unit controls the on-off control of the circuit unit and the current flow control in the circuit unit according to the load signal.
[0016] As preferred, the storage battery end is further connected in parallel with an auxiliary battery, and a capacitor C1 is further connected in parallel between the positive and negative poles of the storage battery; the preferred embodiment has the beneficial effect that, through the setting of the capacitor C1, the capacitor C1 can further play the role of voltage stabilization.
[0017] The utility model discloses the beneficial effect that:
[0018] 1, the difference between the scheme and prior art is that the reverse drag and rectifier circuit are integrated or shared, which greatly reduces the complexity of the circuit unit, and makes the maintenance more convenient.
[0019] 2, the control unit of the scheme can convert the direct current of the storage battery into alternating current when identifying that the load is large, thereby driving the generator to rotate, and can drive the engine to rotate through the generator, so that the engine temporarily obtains greater power. BRIEF DESCRIPTION OF DRAWINGS
[0020] Figure 1 It is the circuit schematic diagram of the background technology of the utility model.
[0021] Figure 2 It is the logic schematic diagram of the embodiment of the utility model.
[0022] Figure 3 It is the circuit schematic diagram of the embodiment of the utility model. DETAILED DESCRIPTION
[0023] The preferred embodiments of the utility model are described in detail below with reference to the drawings, so that the advantages and characteristics of the utility model can be more easily understood by those skilled in the art, and the protection scope of the utility model can be more clearly and explicitly defined. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor belong to the protection scope of the utility model.
[0024] As shown in Figures 2-3 :
[0025] The application discloses a one-body integrated engine controller with assistance, which comprises a battery, a generator unit, a circuit unit and a control unit which are electrically connected with each other, wherein the circuit unit comprises switch subunits G1, G2, G3, G4, G5 and G6; the control unit is connected with the control ends of the switch subunits G1, G2, G3, G4, G5 and G6 respectively; specifically, the positive pole of the battery is electrically connected with the output ends of the switch subunits G1, G3 and G5 respectively; the negative pole of the battery is electrically connected with the input ends of the switch subunits G2, G4 and G6; the generator unit is specifically a generator, the input end of the generator is connected with the output end of an engine through a coupling or a speed reducer, and the generator unit comprises a generator winding, the U pole of the generator winding is electrically connected with the input end of the switch subunit G1 and the output end of the switch subunit G2 respectively, the V pole of the generator winding is electrically connected with the input end of the switch subunit G3 and the output end of the switch subunit G4 respectively, and the W pole of the generator winding is electrically connected with the input end of the switch subunit G5 and the output end of the switch subunit G6 respectively.
[0026] In the embodiment, the switch subunits G1, G2, G3, G4, G5 and G6 are MOS tubes G1, G2, G3, G4, G5 and G6 respectively, and the control end, the output end and the input end of each switch subunit are the G pole, the D pole and the S pole of the MOS tube respectively.
[0027] The intermittent on-off of each switch subunit can convert the generated alternating current into direct current, the control unit is provided with pulse control signals of each switch subunit to realize the on-off of the switch subunit, the control unit converts the alternating current generated by the generator unit into direct current and transmits the direct current to the battery for storage when the engine is normally operated.
[0028] When the engine needs to be started, the control unit controls the on-off of the switch sub-unit, so that the direction of the current in the circuit is from the battery to the generator unit, specifically converting the direct current of the battery into alternating current and transmitting it to the generator unit, so that the generator unit rotates, and then drives the engine crankshaft to rotate, reducing the difficulty of starting the engine; at the same time, the present scheme integrates or shares the reverse traction and rectifier circuit, greatly reducing the complexity of the circuit unit, making maintenance and maintenance more convenient; the MOS tube is used as the switch tube, which can control the on-off of the MOS tube through the pulse output of the control unit, which is simple and convenient, and the pulse output can be controlled, which is more convenient for rectification and stability of electric energy.
[0029] In implementation, the control unit includes a microcontroller and a plurality of half-bridge drive sub-units, wherein the microcontroller is specifically a single-chip microcomputer, and the half-bridge drive sub-unit is specifically a half-bridge drive chip, both of which are well known to those skilled in the art and will not be described in detail here; in specific implementation, the output end of the microcontroller is connected with the input end of the half-bridge drive unit, and the output end of the half-bridge drive unit is connected with the control end of the corresponding switch sub-unit; the control unit sends a control signal to the half-bridge drive sub-unit, and the half-bridge drive sub-unit sends a pulse signal to drive the on or off of the switch sub-unit after receiving the control signal, realizing circuit rectification or converting direct current into alternating current in the circuit unit.
[0030] In implementation, the control unit further includes a Hall detection sub-unit, which is specifically a Hall detector, which is an integrated sensor, and its principle and structure are well known to those skilled in the art and will not be described in detail here, which is used to detect the position and speed of the engine crankshaft, and also used for engine camshaft position and knock detection; through the detection signal of the Hall detection sub-unit, the speed of the generator and the frequency of the generated alternating current can be judged, and then the control unit can control the circuit unit according to the detection signal, which is convenient for better integration of the electric energy generated by the generator.
[0031] In implementation, the control unit further comprises a current-voltage acquisition subunit, which is configured to acquire a voltage value or a current value in the circuit unit; the control unit rectifies the generated electric energy according to the acquired current or voltage parameter, so as to meet the set requirement; the control unit further comprises an engine load acquisition subunit, and the control unit drives the circuit unit according to the load signal acquired by the engine load acquisition subunit, thereby realizing the on-off control of the circuit unit and the current flow direction control in the circuit unit; the control unit further comprises a load demand input subunit, which is configured to input a load signal, and the control unit controls the on-off control of the circuit unit and the current flow direction control in the circuit unit according to the load signal; the advantage of such a configuration is that, when the control unit identifies that the load is too large, the control unit reversely drives the generator by the battery, so that the generator temporarily operates together with the engine, a larger kinetic energy is temporarily obtained, and the load capacity in a short time is greatly improved; in specific implementation, the load demand input subunit can be configured as a key or a switch, and the control unit drives the generator to provide power according to the switch signal; the load acquisition subunit can also be a speed sensor, which acquires the engine speed under a corresponding working condition; the control unit matches the actual engine speed and the speed under the corresponding working condition, and if the difference is too large or the speed drops too fast, it is determined that assistance is needed.
[0032] In implementation, the battery end is further connected in parallel with an auxiliary battery, and a capacitor C1 is further connected in parallel between the positive and negative poles of the battery; the capacitor C1 can further play a role of voltage stabilization, and the auxiliary battery can be used as a supplement when the battery electric energy is insufficient.
[0033] Although the embodiments of the utility model have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to the embodiments without departing from the principles and spirits of the utility model, and the scope of the utility model is defined by the appended claims.
Claims
1. A self-contained engine controller with assistive inspiration, comprising a battery, a generator unit, a circuit unit and a control unit electrically connected to each other, characterized in that: The circuit unit comprises switch subunits G1, G2, G3, G4, G5 and G6; the output end of the control unit is connected with the control end of each switch subunit; the positive pole of the storage battery is electrically connected with the output end of the switch subunit G1, G3 and G5 respectively; the negative pole of the storage battery is electrically connected with the input end of the switch subunit G2, G4 and G6; the generator unit comprises a generator winding, the U pole of the generator winding is electrically connected with the input end of the switch subunit G1 and the output end of the switch subunit G2 respectively; the V pole of the generator winding is electrically connected with the input end of the switch subunit G3 and the output end of the switch subunit G4 respectively; the W pole of the generator winding is electrically connected with the input end of the switch subunit G5 and the output end of the switch subunit G6 respectively.
2. The power-assisted, intuitive integrated engine controller of claim 1, wherein: The switch subunits G1, G2, G3, G4, G5 and G6 are MOS tubes G1, G2, G3, G4, G5 and G6 respectively; the control end, the output end and the input end of each switch subunit are the G pole, the D pole and the S pole of each MOS tube respectively.
3. The power-assisted, intuitive integrated engine controller of claim 1, wherein: The control unit comprises a microcontroller and a plurality of half-bridge driving subunits, the output end of the microcontroller is connected with the input end of the half-bridge driving unit, and the output end of the half-bridge driving unit is connected with the control end of the corresponding switch subunit.
4. The power-assisted, intuitive integrated engine controller of claim 1, wherein: The control unit further comprises a Hall detection subunit, which is used for detecting the position and rotating speed of the engine crankshaft, and is also used for detecting the camshaft position and knock of the engine.
5. The power-assisted, intuitive integrated engine controller of claim 1, wherein: The control unit further comprises a current and voltage acquisition subunit, which is used for acquiring the voltage value or the current value in the circuit unit.
6. The power-assisted, intuitive integrated engine controller of claim 1, wherein: The control unit further comprises an engine load acquisition subunit, and the control unit drives the circuit unit according to the load signal acquired by the engine load acquisition subunit, so as to realize the on-off control of the circuit unit and the current flow direction control in the circuit unit.
7. The power-assisted, intuitive integrated engine controller of claim 6, wherein: The control unit further comprises a load demand input subunit, which is used for load signal input, and the control unit controls the on-off control of the circuit unit and the current flow direction control in the circuit unit according to the load signal.
8. The power-assisted, intuitive integrated engine controller of claim 1, wherein: The storage battery end is also connected with an auxiliary battery in parallel, and a capacitor C1 is also connected in parallel between the positive and negative poles of the storage battery.