Electric side-opening door actuator circuit

Abstract

The utility model discloses an electric side-opening door actuator circuit, which is used for being connected with an actuator to control the operation of the actuator, and comprises a main control chip, a brushless motor driving circuit and a plurality of analog-to-digital conversion circuits, the main control chip is respectively and electrically connected with the analog-to-digital conversion circuits, and the brushless motor driving circuit is electrically connected with the analog-to-digital conversion circuits. The main control chip receives high / low level signals sent by the analog-to-digital conversion circuits, the main control chip is electrically connected with the brushless motor driving circuit to send PWM signals to the brushless motor driving circuit, and the brushless motor driving circuit is electrically connected with a motor to output power so that the motor can operate forwards / backwards to drive an actuator to open / close a vehicle door. According to the utility model, the main control chip is integrated on the circuit of the side-opening door actuator, and the main control chip receives signals of the side door sensor and controls the side-opening door actuator, so that the side door is prevented from being out of order in case of console circuit failure or emergency.

Description

TECHNICAL FIELD

[0001] The utility model relates to new energy automobile and integrated circuit technical field, especially a kind of electric side door operator circuit. BACKGROUND

[0002] Automobile is the traffic tool commonly used in people's daily life, in recent years with the vigorous development of new energy automobile, the intelligent level of automobile is also higher and higher.

[0003] With the vigorous development of new energy automobile, the intelligentization and humanization of automobile system, the side door opening mode of automobile slowly develops from the intelligent mode of electric push rod pushing door to the manual door opening / pushing door of user.

[0004] The existing electric actuator, the main control chip of general actuator is arranged in the control console of cab, and the console output signal controls the actuator to run, so that the circuit is too concentrated, and the malfunction of console circuit can cause the malfunction of side door function. UTILITY MODEL CONTENTS

[0005] The utility model aims at providing a kind of electric side door operator circuit, adopts decentralization idea and integrates part side door signal circuit in actuator circuit, uses a main control chip control, avoids the influence of electric side door when console circuit fails.

[0006] The above technical purpose of the utility model is realized by the following technical scheme: a kind of electric side door operator circuit, for connecting actuator to control actuator to run, including: main control chip, brushless motor drive circuit and several analog-digital conversion circuits, the main control chip is electrically connected with several analog-digital conversion circuits respectively, the main control chip receives the high / low level signal sent by several analog-digital conversion circuits, the main control chip is electrically connected with the brushless motor drive circuit and sends PWM signal to the brushless motor drive circuit, the brushless motor drive circuit is electrically connected with motor output power and makes motor positive / negative operation drive actuator open / close door.

[0007] By adopting the above technical scheme, the main control chip receives the signal output on side door to control side door actuator, to prevent side door malfunction in console circuit failure or emergency.

[0008] The utility model further provides that: the brushless motor drive circuit includes drive chip, three-phase inverter bridge circuit and sampling circuit, the drive chip is electrically connected with three-phase inverter bridge circuit and sampling circuit respectively, the sampling circuit is electrically connected with drive chip, and the sampling circuit exports the current signal of three-phase inverter bridge circuit collected to drive chip.

[0009] The utility model discloses further provide: three -phase inverter bridge circuit includes 6 MOS pipe constitutes upper bridge arm and lower bridge arm, and the gate of each MOS pipe is connected with the drive chip electricity.

[0010] The utility model discloses further provide: MOS pipe has fourth resistance and third electric capacity in parallel, and fourth resistance and third electric capacity are connected in series.

[0011] The utility model discloses further provide: sampling circuit includes sampling chip and sampling resistance, and sampling chip electric connection drive chip, sampling resistance includes sampling resistance Res1, sampling resistance Res2, sampling resistance Res3, sampling resistance Res4.

[0012] The utility model discloses further provide: the input end of analog -to -digital conversion circuit inputs sensor on / off signal, and the output end outputs high / low level digital signal.

[0013] The utility model discloses further provide: analog -to -digital conversion circuit includes first resistance, second resistance, third resistance, first electric capacity, second electric capacity, first diode, and one end of first resistance is connected 12V direct current voltage, and the other end of first resistance is connected one end of first electric capacity, and the other end of first electric capacity is connected ground point, and input point connects the other end of first resistance, and one end of second resistance is connected 5V direct current voltage, and the other end of second resistance is connected one end of third resistance, and the other end of third resistance is connected one end of second electric capacity, and the other end of second electric capacity is connected ground point, and output point connects the other end of third resistance, and the positive pole of first diode is connected the other end of second resistance, and the negative pole of first diode is connected the other end of first resistance.

[0014] The utility model discloses further provide: the analog signal that analog -to -digital conversion circuit input point inputs includes car door close, car door open, central locking, child lock, car door half open, inner handle signal, B seat switch signal, touch signal, outer handle signal.

[0015] The utility model discloses further provide: still include hall conversion circuit, and hall conversion circuit input end connects hall sensor, and hall conversion circuit output end connects main control chip, and hall conversion circuit converts the hall sensor signal of input as high / low level digital signal.

[0016] The utility model discloses further provide: still include CAN bus circuit, and CAN bus circuit connects main control chip and control console total chip.

[0017] Compared with the prior art, the utility model has the following beneficial effects: the main control chip is integrated on the side opening door actuator circuit, the main control chip receives the side door sensor signal, controls the side opening door actuator, and prevents the control console circuit failure or emergency, and the side door fails. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 is the circuit structure block diagram of the electric side opening door actuator in the embodiment.

[0019] Figure 2 is the principle diagram of the master control chip in the embodiment.

[0020] Figure 3 is the pin connection diagram of the master control chip in the embodiment.

[0021] Figure 4 is the principle diagram of the brushless motor driving circuit in the embodiment.

[0022] Figure 5 is the principle diagram of the sampling circuit in the brushless motor driving circuit in the embodiment.

[0023] Figure 6 is the principle diagram of the analog-digital conversion circuit of a plurality of sensors in the embodiment.

[0024] Figure 7 is the principle diagram of the analog-digital conversion circuit of another plurality of sensors in the embodiment.

[0025] Figure 8 is the principle diagram of the Hall conversion circuit in the embodiment.

[0026] Figure 9 is the principle diagram of the CAN bus circuit in the embodiment.

[0027] In the figure: 1, master control chip; 2, brushless motor driving circuit; 21, driving chip; 22, three-phase inverter bridge circuit; 23, sampling circuit; 24, sampling chip; 3, analog-digital conversion circuit; 4, Hall conversion circuit; 5, CAN bus circuit. DETAILED DESCRIPTION

[0028] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application. It should be noted that the terms "upper", "lower", "inner", "outer", "top / bottom end" and the like indicate the orientation or positional relationship shown in the drawings, and are only used for the purpose of facilitating the description of the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first" and "second" are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance.

[0029] The embodiment discloses an electric side door actuator circuit which is integrated on a circuit board of an electric side door actuator, and is electrically connected with the actuator to drive the actuator to open or close a vehicle door, so that the electric side door actuator can realize the functions of electric opening, closing, following and hovering of the vehicle door; meanwhile, the circuit integrates some signal circuits of the locking position state of the vehicle side door to trigger the actuator to run.

[0030] As shown in Figure 1 , the electric side door actuator circuit comprises a main control chip 1, a brushless motor driving circuit 2 and a plurality of analog-to-digital conversion circuits 3, the main control chip 1 is electrically connected with the plurality of analog-to-digital conversion circuits 3, the plurality of analog-to-digital conversion circuits 3 respectively receive signals of various sensors arranged on the side door of the vehicle, convert the signals into digital signals of high / low level, and then transmit the digital signals to the main control chip 1, and the main control chip 1 respectively receives the high / low level signals sent by the plurality of analog-to-digital conversion circuits 3; the main control chip 1 is electrically connected with the brushless motor driving circuit 2, sends a PWM signal to the brushless motor driving circuit 2 to control the brushless motor driving circuit 2, and the brushless motor driving circuit 2 is electrically connected with a motor to output power to make the motor run forward or reversely, so as to drive the actuator to open or close the vehicle door.

[0031] Figure 2 、 Figure 3 It is a circuit principle diagram of the main control chip 1, which receives the digital signals converted by the sensors and outputs a PWM signal to control the motor to run.

[0032] As shown in Figure 4 , the brushless motor driving circuit 2 comprises a driving chip 21, a three-phase inverter bridge circuit 22 and a sampling circuit 23, the driving chip 21 is connected with the three-phase inverter bridge circuit 22 and the sampling circuit 23 respectively, and the three-phase inverter bridge circuit 22 is connected with a brushless motor at an output end to output driving power; Figure 4 As shown in Figure 4 , the three-phase inverter bridge circuit 22 is composed of six MOS transistors to form an upper bridge arm and a lower bridge arm to inversely convert a direct current into an alternating current and output to the brushless motor, the output pins of the driving chip 21 are respectively connected with the gates of the MOS transistors to respectively output high level PHA_GHA, PHB_GHB and PHC_GHC or low level PHA_GLA, PHB_GLB and PHC_GLC to control the MOS transistors to be turned on, convert the direct current input voltage into a controllable three-phase alternating current output voltage, and make the motor rotate forward or reversely.

[0033] Each MOS transistor of the three-phase inverter bridge circuit 22 is connected in parallel with a fourth resistor and a third capacitor, and the fourth resistor and the third capacitor are connected in series to smooth the current in the brushless motor driving circuit 2 and make the actuator run smoothly; as shown in Figure 4 , the MOS transistor is connected in parallel with a fourth resistor R184 and a third capacitor C123, and the fourth resistor R184 and the third capacitor C123 are connected in series, and the other MOS transistors are also arranged in the same way.

[0034] As Figure 4 shown, the sampling circuit 23 connects the lower bridge arm of the three-phase inverter bridge circuit 22, and collects each bridge arm through the sampling resistors Res3, Res2 and Res1 respectively. The two ends of the sampling resistors Res3, Res2 and Res1 are connected to the driving chip 21 respectively, so as to transmit the voltage value on both sides of the sampling resistors Res3, Res2 and Res1 to the driving chip 21. The driving chip 21 calculates the current of each bridge arm, and completes the current sampling of each bridge arm. The lower bridge arm of the three-phase inverter bridge circuit 22 is connected with the sampling resistor Res4 at the grounding point. The sampling resistor Res4 is connected with the sampling chip 24 at both ends. The sampling resistor Res4 samples the bus signal of the three-phase inverter bridge circuit 22. The sampling chip 24 is electrically connected with the driving chip 21, and amplifies and transmits the bus signal to the driving chip 21.

[0035] As shown, the Hall conversion circuit 4 is further included. The input end of the Hall conversion circuit 4 is connected with the Hall sensor. The output end of the Hall conversion circuit 4 is connected with the main control chip 1. The Hall sensor collects the position signal of the brushless motor rotor, converts the position signal into a digital signal, and outputs the digital signal to the main control chip 1. After processing, the main control chip 1 outputs a PWM signal to the driving chip 21 to control the rotation of the motor.

[0036] The analog-digital conversion circuit 3 converts the on-off signal of each sensor arranged in the side door of the automobile into a high-level signal or a low-level signal, etc. which can be recognized by the main control chip 1, and then transmits the signal to the main control chip 1 to make the main control chip 1 recognize the state of each door, as Figure 6 shown, the signals of each door lock in this embodiment are marked. Home represents the closed state of the door, Open represents the open state of the door, CDL represents the central locking signal, PCL represents the child lock signal, and Ajar represents the half-open state of the door. Figure 7 shown, the signals of each component are further included. Inner-SW is the inner handle signal, B-pillar SW is the B-pillar switch signal, TOUCH SIGNAL is the touch signal, and Handle-SW is the outer handle signal. The sensors output signals according to whether they are triggered. The analog-digital conversion circuit 3 converts the on-off analog signal into a high-level or low-level digital signal.

[0037] As Figure 6As shown in the drawing, the door closed state analog-digital conversion circuit 3 comprises a first resistor R97, a second resistor R99, a third resistor R101, a first capacitor C65, a second capacitor C63, and a first diode D5; one end of the first resistor R97 is connected to a 12V DC voltage, the other end of the first resistor R97 is connected to one end of the first capacitor C65, the other end of the first capacitor C65 is connected to a grounding point, and an input point Home SW is connected to the other end of the first resistor R97; one end of the second resistor R99 is connected to a 5V DC voltage, the other end of the second resistor R99 is connected to one end of the third resistor R101, the other end of the third resistor R101 is connected to one end of the second capacitor C63, the other end of the second capacitor C63 is connected to a grounding point, an output point GPI_Home SW is connected to the other end of the third resistor R101, the positive electrode of the first diode D5 is connected to the other end of the second resistor R99, and the negative electrode of the first diode D5 is connected to the other end of the first resistor R97; when the door is not closed to the position, the input signal is a break signal, and the output point outputs a 5V high level; when the door is closed to the position, the input signal is a communication signal, the 5V voltage flows to the input point, and the output point outputs a 0V low level; thus, the on-off signal is converted into a high level signal or a low level signal and is transmitted to the main control chip 1. Figure 7 The remaining analog-digital conversion circuits 3 are the same as the door closed state analog-digital conversion circuit 3, and will not be repeated.

[0038] As shown in the drawing, Figure 8 The Hall conversion circuit 4 converts the analog signal of the Hall sensor into a digital signal, and the circuit arrangement is the same as that of the analog-digital conversion circuit 3, and will not be repeated.

[0039] As shown in the drawing, Figure 9 The CAN bus circuit 5 is further included, the CAN bus circuit 5 is connected to the main control chip 1 and the control console, so that the main control chip 1 and the control console keep data transmission.

[0040] The above is only a preferred embodiment of the present application, so equivalent changes or modifications made according to the structure, features and principles described in the patent application range of the present application are included in the patent application range of the present application.

Claims

1. An electrically powered side hinged door operator circuit for connecting an operator to control operation of the operator, characterised in that: The application relates to a control chip, a brushless motor driving circuit and a plurality of analog-digital conversion circuits, wherein the control chip is electrically connected with the plurality of analog-digital conversion circuits respectively, the control chip receives high / low level signals sent by the plurality of analog-digital conversion circuits, the control chip is electrically connected with the brushless motor driving circuit to send PWM signals to the brushless motor driving circuit, and the brushless motor driving circuit is electrically connected with a motor to drive an actuator to open / close a door. The brushless motor driving circuit comprises a driving chip, a three-phase inverter bridge circuit and a sampling circuit, the driving chip is electrically connected with the three-phase inverter bridge circuit and the sampling circuit respectively, the sampling circuit is electrically connected with the driving chip, and the sampling circuit outputs collected current signals of the three-phase inverter bridge circuit to the driving chip.

2. An electric circuit for an electric side door operator according to claim 1, characterized in that: The three-phase inverter bridge circuit comprises six MOS tubes forming upper bridge arms and lower bridge arms, and the gate of each MOS tube is electrically connected with the driving chip.

3. An electric circuit for an electric side door operator according to claim 2, characterized in that: The MOS tube is connected in parallel with a fourth resistor and a third capacitor, and the fourth resistor and the third capacitor are connected in series.

4. An electric circuit for an electric side door operator according to claim 3, characterized in that: The sampling circuit comprises a sampling chip and a sampling resistor, the sampling chip is electrically connected with the driving chip, and the sampling resistor comprises a sampling resistor Res1, a sampling resistor Res2, a sampling resistor Res3 and a sampling resistor Res4.

5. An electric circuit for an electric side door operator according to claim 2, characterized in that: The input end of the analog-digital conversion circuit inputs a sensor on / off signal, and the output end outputs a high / low level digital signal.

6. An electric circuit for an electric side door operator according to claim 1, characterized in that: The analog-digital conversion circuit comprises a first resistor, a second resistor, a third resistor, a first capacitor, a second capacitor and a first diode, one end of the first resistor is connected with a 12V direct current voltage, the other end of the first resistor is connected with one end of the first capacitor, the other end of the first capacitor is connected with a grounding point, an input point is connected with the other end of the first resistor, one end of the second resistor is connected with a 5V direct current voltage, the other end of the second resistor is connected with one end of the third resistor, the other end of the third resistor is connected with one end of the second capacitor, the other end of the second capacitor is connected with the grounding point, an output point is connected with the other end of the third resistor, the positive pole of the first diode is connected with the other end of the second resistor, and the negative pole of the first diode is connected with the other end of the first resistor.

7. An electric circuit for an electric side door operator according to claim 6, characterized in that: The analog signals input by the input point of the analog-digital conversion circuit comprise a door closing signal, a door opening signal, a central locking signal, a child lock signal, a door half opening signal, an inner handle signal, a B seat switch signal, a touch signal and an outer handle signal.

8. An electric circuit for an electric side door operator according to claim 7, characterized in that: The application further comprises a Hall conversion circuit, the input end of the Hall conversion circuit is connected with a Hall sensor, the output end of the Hall conversion circuit is connected with the control chip, and the Hall conversion circuit converts the input Hall sensor signal into a high / low level digital signal.

9. An electric circuit for an electric side door operator according to claim 1, characterized in that: The application further comprises a CAN bus circuit, the CAN bus circuit is connected with the control chip and a control console.

10. An electric circuit for an electric side door operator according to claim 1, characterized in that: ​

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