CN204316269U - The integrated apparatus of starting on mixed electrical automobile, generating, power-assisted - Google Patents

Abstract

The utility model belongs to automotive fittings technical field, discloses the integrated apparatus of a kind of starting on mixed electrical automobile, generating, power-assisted.Described device comprises main circuit and controller.Described main circuit comprises 12/10 configuration switches magnetic resistance (SR) motor, power inverter and batteries, described 12/10 configuration switches magnetic resistance (SR) motor comprises by the stators and rotators of teeth groove shape silicon steel plate stacking, and described power inverter comprises S ₁₁~ S ₆₂main switch and VD ₁₁~ VD ₆₂fly-wheel diode; Described controller comprises high speed digital signal processor TMS320F240 and programmable logic device EPM 7128S.The utility model can meet the requirement of automobile start, generating, power-assisted each side preferably, and easily realize, reliability is high.

Description

An integrated device for starting, generating and assisting hybrid vehicles

technical field

The utility model belongs to the technical field of automobile devices, in particular to an integrated device for starting, generating and assisting a hybrid automobile.

Background technique

In the traditional fuel vehicle electrical system, the functions of starting, power generation and boosting are completed by two independent subsystems of the DC starter motor and the alternator. The two sets of units need to be independently developed and then matched and optimized. and the two largest electrical components by weight. In fact, the starter motor only works when starting the car engine, and the engine is separated from the starter when the engine is running above the idle speed, while the alternator starts to work after the engine is running, and the working hours of this system do not overlap. The reason why the two are not combined into one is that the working speed of the generator starter does not match, the starter needs to provide a large torque, and the speed of the generator is roughly equivalent to that of the engine. Nowadays, due to people's continuous improvement of the handling and comfort requirements of the car, the usage of the car load has been increased. With the ever-increasing amount of electricity used in the car, the equipment attached to it is becoming more and more complete. Therefore, very high requirements are put forward for the generator of the car, so the power of the generator must be increased, which means increasing the volume of the generator, but the space left for the generator in the car is limited. The combination of the starter and the alternator has naturally become a reasonable demand for the development of automobile technology.

Utility model content

One of the purposes of this utility model is to overcome the defects of the prior art, aiming at the large starting current, large torque, and short working time of the automobile starter, and the small current of the generator, which are difficult to coordinate and design, to provide a hybrid starter. An integrated device for starting, generating, and assisting an electric vehicle. The device can better meet the requirements of starting, generating, and assisting an automobile, and is easy to implement and has high reliability.

The utility model provides an integrated device for starting, generating and assisting a hybrid vehicle, which includes a main circuit and a controller.

The main circuit includes a 12/10 structure switched reluctance (SR) motor, a power converter and a battery pack.

The 12/10 structure switched reluctance (SR) motor includes a stator and a rotor formed by laminating cog-shaped silicon steel sheets, and the power converter includes S ₁₁ ~ S ₆₂ main switch tubes and VD ₁₁ ~ VD ₆₂ continued flow diode.

The stator and rotor of the 12/10 structure switched reluctance (SR) motor are salient pole solid structures, the rotor has no windings and no permanent magnets, the stator has only concentrated windings, and the two radially opposite windings of the stator are connected in series to form a phase , forming six phases A to F.

The rotor position of the 12/10 structured switched reluctance (SR) motor is reflected by three photoelectric signals generated by coaxially installed photoelectric sensors with a period of 36° mechanical angle and a difference of 42° mechanical angle from each other.

The power converter is a dual-switch topological type, and the six bridge arms of the power converter are respectively connected in series with the A-F six-phase windings of the 12/10 structured switched reluctance (SR) motor.

When the 12/10 structured switched reluctance (SR) motor rotates until the angle between the stator tooth axis and the rotor slot axis of one phase is 0°, the inductance is the weakest, and the S ₁₁ ~ S ₆₂ main switch tubes are sequentially turned on , the battery pack voltage excites the phase windings of the 12/10 switched reluctance (SR) motor, and the motor works, and the process is an electric energy input process.

When the 12/10 structured switched reluctance (SR) motor rotates until the angle between the axis of the stator teeth of one phase and the axis of the rotor slot is 18°, the inductance is the strongest and current is generated, and the S ₁₁ ~ S ₆₂ main switches The tube is closed, and the phase current passes through the VD ₁₁ -VD ₆₂ freewheeling diodes, and the electric energy is fed back to the battery pack.

The main circuit can realize the independent control of the supply voltage and commutation voltage of each phase of the 12/10 structured switched reluctance (SR) motor.

The controller includes a high-speed digital signal processor TMS320F240 and a programmable logic device EPM 7128S.

The high-speed digital signal processor TMS320F240 is used to realize multiple digital PI adjustments, output control quantity chopping upper limit CURLMTD, and output angle position control (APC) in the 12/10 structure switched reluctance (SR) motor boost and power state The optimal turn-on and turn-off angles θ _on and θ _off drive the signal IDIVx, and complete the CPLD's working clock output, battery pack terminal voltage, current and temperature detection, keyboard and LCD display driving tasks.

The programmable logic device EPM 7128S is used to realize pure digital combined logic and sequential logic functions such as rotor position signal synthesis, drive signal distribution, overvoltage protection, alarm processing, etc., as well as the current chopping control mode with a fixed off time St Logic control function.

When the automobile is in the starting condition, the 12/10 switched reluctance (SR) motor acts as a starter, absorbs electric energy, and generates sufficient electromagnetic torque to drive the engine to run and ignite. After the engine works, its working torque is synthesized with the electromagnetic torque of the switched reluctance (SR) motor of the 12/10 structure, so that the rotating speed rises rapidly to idle speed, about 1000r/min, and the starting process is completed, and the 12/10 structure The switched reluctance (SR) motor is transferred to other working states.

When the car is under full throttle acceleration or climbing conditions, the engine drives the vehicle, and the ISAD (Integrated Start Assist and Damping System) serves as an auxiliary device to provide peak power. At this time, the switched reluctance (SR) motor with the 12/10 structure works in the constant power region above the base speed, the motion electromotive force is relatively large, and the winding current changes slowly, so the switched reluctance (SR) motor with the 12/10 structure The motor operates electrically in the form of angle position control (APC), and adopts the method of maximizing the ratio of the average torque to the mean square value of the phase current, and obtains the required torque output through the minimum energy input.

When the car is running normally, the 12/10 structure switched reluctance (SR) motor adopts the current chopping power generation control mode with a fixed optimization angle, and is in the power generation state under the drag of the engine, and the excitation current is adjusted by current chopping The size of the battery can realize the control of the output power of the power generation; the two-stage charging mode charging of low-voltage constant current charging and high-voltage constant voltage charging is used to improve the service life of the battery pack. Convert mechanical energy into electrical energy output, use it as a power source for loads such as automotive electrical appliances, and supplement electrical energy for automotive power lead-acid batteries.

The beneficial effect of the utility model is that the 12/10 structure switched reluctance (SR) motor adopts the current chopping control CCC mode for starting, which is convenient to control and can obtain relatively large output torque. The 12/10 structure switched reluctance (SR) motor assists in the electric operation of the angular position control APC mode. By optimizing the opening and closing angles, a satisfactory torque can be obtained and high efficiency can be maintained. The 12/10 structured switched reluctance (SR) motor adopts current chopping control with optimized angle, variable parameter PI constant current and constant voltage control strategy of CCC mode for power generation, and has excellent power generation performance. The switched reluctance (SR) motor with a 12/10 structure can better meet the requirements of automobile starting, power generation and boosting, and is easy to implement and has high reliability. In addition, the 12/10 structured switched reluctance (SR) motor has a strong fault tolerance capability, and it can operate without a phase no matter whether it is an electric motor or a power generator.

Below in conjunction with accompanying drawing and embodiment the utility model is further described.

Description of drawings

Fig. 1 shows the structural representation of the main circuit of the utility model.

Among them, 1-12/10 structure switched reluctance (SR) motor, 2-power converter, 3-battery pack.

Detailed ways

The utility model will be further described below in conjunction with specific embodiments. It should be noted that the technical features or combinations of technical features described in the following embodiments should not be regarded as isolated, and they can be combined with each other to achieve better technical effects.

The utility model provides an integrated device for starting, generating and assisting a hybrid vehicle, which includes a main circuit and a controller.

FIG. 1 is a schematic structural view of the main circuit of the present invention. As can be seen from FIG. 1 , the main circuit includes a switched reluctance (SR) motor 1 with a 12/10 structure, a power converter 2 and a battery pack 3 .

The 12/10 structure switched reluctance (SR) motor 1 includes a stator and a rotor formed by laminating cogged silicon steel sheets, and the power converter 2 includes S ₁₁ ~ S ₆₂ main switch tubes and VD ₁₁ ~ VD ₆₂ freewheeling diodes.

The stator and rotor of the 12/10 structure switched reluctance (SR) motor 1 are salient pole solid structures, the rotor has no windings and no permanent magnets, the stator has only concentrated windings, and the two radially opposite windings of the stator are connected in series to form a Phases constitute the six phases A to F.

The rotor position of the 12/10 structured switched reluctance (SR) motor 1 is reflected by three photoelectric signals generated by coaxially installed photoelectric sensors with a period of 36° mechanical angle and a difference of 42° mechanical angle from each other.

The power converter 2 is a dual-switch topological type, and the six bridge arms of the power converter 2 are respectively connected in series with the A-F six-phase windings of the switched reluctance (SR) motor 1 with a 12/10 structure.

When the 12/10 structured switched reluctance (SR) motor 1 rotates until the angle between the axis of the stator teeth of one phase and the axis of the rotor slot is 0°, the inductance is the weakest, and the main switch tubes S ₁₁ to S ₆₂ are sequentially When it is turned on, the voltage of the battery pack 3 excites the 1-phase winding of the 12/10 switched reluctance (SR) motor, and the motor works, and the process is an electric energy input process.

When the switched reluctance (SR) motor 1 with 12/10 structure rotates until the angle between the axis of the stator teeth of one phase and the axis of the rotor slot is 18°, the inductance is the strongest and current is generated, and the S ₁₁ to S ₆₂ main The switch tube is turned off, the phase current passes through the VD ₁₁ -VD ₆₂ freewheeling diodes, and the electric energy is fed back to the battery pack 3 .

The main circuit can realize the independent control of the supply voltage and commutation voltage of each phase of the 12/10 structured switched reluctance (SR) motor 1 .

The controller includes a high-speed digital signal processor TMS320F240 and a programmable logic device EPM 7128S.

The high-speed digital signal processor TMS320F240 is used to realize multiple digital PI adjustments, output control quantity chopping upper limit CURLMTD, and output angle position control (APC) in the 12/10 structure switched reluctance (SR) motor boost and power state The optimized turn-on and turn-off angles θon, θoff drive signal IDIVx, and complete the work clock output of CPLD, detection of battery pack 3-terminal voltage, current and temperature, and driving tasks of keyboard and LCD display.

The programmable logic device EPM 7128S is used to realize pure digital combined logic and sequential logic functions such as rotor position signal synthesis, drive signal distribution, overvoltage protection, alarm processing, etc., as well as the current chopping control mode with a fixed off time St Logic control function.

When the automobile is in the starting state, the 12/10 switched reluctance (SR) motor 1 acts as a starter, absorbs electric energy, and generates sufficient electromagnetic torque to drive the engine to run and ignite. After the engine works, its working torque is synthesized with the electromagnetic torque of the 12/10 structure switched reluctance (SR) motor 1, so that the rotating speed rises to idle speed rapidly, about 1000r/min, and the starting process is completed, and the 12/10 The structural switched reluctance (SR) motor 1 is transferred to other working states.

When the car is under full throttle acceleration or climbing conditions, the engine drives the vehicle, and the ISAD (Integrated Start Assist and Damping System) serves as an auxiliary device to provide peak power. At this time, the 12/10 structured switched reluctance (SR) motor 1 works in the constant power region above the base speed, the motion electromotive force is relatively large, and the winding current changes slowly, so the 12/10 structured switched reluctance (SR) ) The motor 1 operates electrically in the angle position control (APC) mode, and adopts the method of maximizing the ratio of the average torque to the mean square value of the phase current, and obtains the required torque output through the minimum energy input.

When the car is running normally, the 12/10 structured switched reluctance (SR) motor 1 adopts the current chopping power generation control mode with a fixed optimization angle, and is in the power generation state under the drag of the engine, and the excitation is adjusted by current chopping The size of the current realizes the control of the output power of the power generation; the service life of the battery pack 3 is improved by adopting two-stage charging modes of low-voltage constant-current charging and high-voltage constant-voltage charging. Convert mechanical energy into electrical energy output, use it as a power source for loads such as automotive electrical appliances, and supplement electrical energy for automotive power lead-acid batteries.

The beneficial effect of the utility model lies in that it can better meet the requirements of automobile starting, power generation and boosting, and is easy to realize and has high reliability.

Although some embodiments of the present invention have been given herein, those skilled in the art should understand that the embodiments herein can be changed without departing from the spirit of the present invention. The above-mentioned embodiments are only exemplary, and the embodiments herein should not be taken as limiting the scope of rights of the present utility model.

Claims (3)

1. an integrated apparatus for starting on mixed electrical automobile, generating, power-assisted, comprises main circuit and controller, it is characterized in that:

Described main circuit comprises 12/10 configuration switches magnetic resistance (SR) motor (1), power inverter (2) and batteries (3); Described 12/10 configuration switches magnetic resistance (SR) motor (1) comprises by the stators and rotators of teeth groove shape silicon steel plate stacking; Described power inverter (2) comprises S ₁₁~ S ₆₂main switch and VD ₁₁~ VD ₆₂fly-wheel diode;

Described controller comprises high speed digital signal processor TMS320F240 and programmable logic device EPM 7128S.

2. as claimed in claim 1 a kind of on mixed electrical automobile start, generating, power-assisted integrated apparatus, it is characterized in that, the stators and rotators of described 12/10 configuration switches magnetic resistance (SR) motor (1) is salient pole type solid construction; Rotor is without winding, without permanent magnet; Stator only has concentratred winding, and described stator two windings in series diametrically become a phase, forms A ~ F six phase.

3. as claimed in claim 1 a kind of on mixed electrical automobile start, generating, power-assisted integrated apparatus, it is characterized in that, described power inverter (2) is biswitch topological type, and 6 brachium pontis of described power inverter (2) are connected with A ~ F six phase winding of described 12/10 configuration switches magnetic resistance (SR) motor (1) respectively.