CN201998976U - Electronic parking brake system - Google Patents
Electronic parking brake system Download PDFInfo
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- CN201998976U CN201998976U CN2011200208478U CN201120020847U CN201998976U CN 201998976 U CN201998976 U CN 201998976U CN 2011200208478 U CN2011200208478 U CN 2011200208478U CN 201120020847 U CN201120020847 U CN 201120020847U CN 201998976 U CN201998976 U CN 201998976U
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Abstract
The utility model provides an electronic parking brake system. The electronic parking brake system comprises a switch module, a first control module, a second control module which is connected with the first control module, a monitoring module, a driving module and a power module; the power module provides electric energy for the switch module, the first control module, the second control module, the monitoring module and the driving module; the first control module outputs a first control signal according to the operation of a user on the switch module and outputs a state signal; the monitoring module performs judgment according to the state signal of the first control module, and outputs a fault signal when the first control module is failed; the second control module controls the first control module to stop working when receiving the fault signal of the monitoring module and outputs a second control signal according to the operation of the user on the switch module; and the driving module drives a motor to work according to the first control signal or the second control signal. The electronic parking brake system can improve the safety and reliability of the vehicle.
Description
Technical field
The utility model relates to motor vehicle braking system, relates in particular to a kind of electronic brake system.
Background technology
Continuous progress along with vehicle science and technology, increasing automobile changes electron steering into from traditional mechanical control, electronic brake system is exactly the function that realizes braking during standstill by electric energy, can adapt to start-stop operation frequent on the level road, detect automatically, realize that the ramp is anti-slip back by thermal compensation and brake facing wearing and tearing to brake facing, slip before anti-, urgent Parking, functions such as manual parking make the easy and simple to handle and quick of chaufeur.
Electronic brake system mainly is according to the operation of user to switch module by control module, controlling rotating and reverse of motor realizes that Parking is conciliate and stays, but when control unit breaks down can't work the time, also realizing with regard to rotating and reverse of uncontrollable motor that Parking is conciliate stays, there is potential safety hazard, therefore can reduces the safety and the reliability of vehicle.
Summary of the invention
The utility model provides a kind of electronic brake system, breaks down can't work the time in the master control module and can control rotating and reverse of motor by redundant control module and realize that Parking is conciliate and stay, and improves the safety and the reliability of vehicle.
The utility model provides a kind of electronic brake system, comprise switch module, first control module, second control module that is electrically connected with first control module, the monitoring modular that is electrically connected with first control module and second control module respectively, driver module and the power module that is electrically connected with first control module and second control module respectively, described power module is electrically connected with switch module, first control module, second control module, monitoring modular and driver module respectively;
Power module is used for to described switch module, first control module, and second control module, monitoring modular and driver module provide electric energy;
First control module is used for according to the user first control signal being exported in the operation of switch module, and output status signal;
Monitoring modular is used for judging according to the status signal of first control module, output breakdown signal when first control module breaks down;
Second control module is controlled first control module when being used to receive the breakdown signal of monitoring modular and is quit work, and according to the user second control signal is exported in the operation of switch module then;
Driver module is used for according to first control signal or second control signal, drive motor work.
Further, first power subsystem unit and second source unit that described power module comprises power control unit and is used to provide electric energy, described first power subsystem unit and second source unit are electrically connected with the input end of described power control unit respectively, the mouth of described power control unit respectively with switch module, first control module, second control module, monitoring modular and driver module are electrically connected;
Power control unit when being used for output voltage when first power subsystem unit or second source unit less than first setting voltage value, being controlled this power subsystem unit and is quit work.
Further, described electronic brake system also comprises first isolation module and second isolation module that is used for Signal Spacing, the input end of described first isolation module is electrically connected with the first control module mouth, the input end of second isolation module is electrically connected with the signal output part of second control module, the mouth of first isolation module and second isolation module is electrically connected with the input end of described driver module respectively, and the control end of described first isolation module and second isolation module is electrically connected with the mouth that enables of second control module respectively;
Described power module also is used for providing electric energy to described first isolation module and second isolation module.
Further, described driver module comprises second driver element that is used to drive first driver element of first motor and is used to drive second motor, described first isolation module comprises first isolated location and second isolated location, described second isolation module comprises the 3rd isolated location and the 4th isolated location, the mouth of described first isolated location and the 3rd isolated location is electrically connected with first driver element, and the mouth of described second isolated location and the 4th isolated location is electrically connected with second driver element;
Described second control module also is used for when the sampled voltage that receives first driver element is lower than second setting voltage value, controls first isolated location or the 3rd isolated location and quits work and control two isolated locations or the 4th isolated location is started working.
Further, described first driver element and second driver element are respectively relay drive circuit and/or H bridge driving circuit.
Further, described driver module is relay drive circuit or H bridge driving circuit.
Further, described relay drive circuit comprises voltage amplifier, first relay, second relay and four relay buffer circuits, the input end of described voltage amplifier is electrically connected with the mouth of first isolated location and the 3rd isolated location respectively, the mouth of described voltage amplifier is electrically connected with the input end of first relay and second relay respectively, wherein said each relay buffer circuit comprises first divider resistance, second divider resistance and P type switching valve, described P type control end of switching tube is electrically connected with an end of first divider resistance and second divider resistance respectively, the other end of described first divider resistance is electrically connected with the mouth of first isolated location and the 3rd isolated location respectively, the other end of described second divider resistance is electrically connected with the VCC power supply, wherein the input end of P type switching valve is electrically connected with the mouth of first relay in two relay buffer circuits, and described P type output end of switching tube is electrically connected with described first motor, the input end of P type switching valve is electrically connected with the mouth of second relay in two other relay buffer circuit, and described P type output end of switching tube is electrically connected with described second motor.
Further, described H bridge driving circuit comprises two first driving circuits, two second driving circuits and two the 3rd driving circuits;
Each first driving circuit is drawn together the 3rd divider resistance, the 4th divider resistance and P type switching valve, described P type control end of switching tube is electrically connected with an end of the 3rd divider resistance and the 4th divider resistance respectively, the other end of described the 3rd divider resistance is electrically connected with the mouth of second isolated location and the 4th isolated location respectively, and the other end of described the 4th divider resistance and described P type output end of switching tube are electrically connected with the VCC power supply respectively;
Each second driving circuit comprises the 5th divider resistance and N type switching valve, described N type control end of switching tube is electrically connected with the 5th divider resistance one end, the other end of the 5th divider resistance is electrically connected with the mouth of second isolated location and the 4th isolated location respectively, N type output end of switching tube is electrically connected with the input end of described P type switching valve, the input end of N type switching valve be electrically connected;
Each the 3rd driving circuit comprises the 7th divider resistance, the 8th divider resistance and P type switching valve, described P type control end of switching tube is electrically connected with an end of the 7th divider resistance and the 8th divider resistance respectively, the other end of described the 7th divider resistance is electrically connected with the mouth of second isolated location and the 4th isolated location respectively, the other end of the 8th divider resistance is electrically connected with the VCC power supply, the input end of described P type switching valve is electrically connected with N type output end of switching tube, and described P type output end of switching tube is electrically connected with motor.
Further, described monitoring modular is a watchdog circuit.
The electronic brake system that the utility model provides compared with prior art, by monitoring modular the mode of operation of first control module is monitored, when first control module breaks down, second control module is controlled first control module and is quit work, and substitute first control module simultaneously and come control and driving module to realize with drive motor that Parking is conciliate to stay, therefore when first control module can't be worked, second control module also can be controlled motor realization Parking reconciliation and stay, therefore can improve the safety and the stability of electronic brake system, reduce potential safety hazard.
Description of drawings
Fig. 1 is the structural representation block diagram of a kind of embodiment of the utility model electronic brake system.
Fig. 2 is the structural representation block diagram of the another kind of embodiment of the utility model electronic brake system.
Fig. 3 is the circuit diagram of a kind of embodiment of the utility model power control unit.
Fig. 4 is the circuit diagram of the utility model first control module, second control module, first isolation module and a kind of embodiment of second isolation module.
Fig. 5 is the utility model voltage amplifier, first relay, the circuit diagram of a kind of embodiment of second relay.
Fig. 6 is the circuit diagram of a kind of embodiment of the utility model relay buffer circuit.
Fig. 7 is the circuit diagram of a kind of embodiment of the utility model H bridge driving circuit.
The specific embodiment
Clearer for technical matters, technical scheme and beneficial effect that the utility model is solved, below in conjunction with drawings and Examples, the utility model is further elaborated.Should be appreciated that specific embodiment described herein only in order to explanation the utility model, and be not used in qualification the utility model.
As shown in Figure 1, the utility model provides the electronic brake system of a kind of embodiment, comprise switch module 1, first control module 2, second control module 3 that is electrically connected with first control module 2, the monitoring modular 4 that is electrically connected with first control module 2 and second control module 3 respectively, driver module 5 and the power module 6 that is electrically connected with first control module 2 and second control module 3 respectively, described power module 6 is electrically connected with switch module 1, first control module 2, second control module 3, monitoring modular 4 and driver module 5 respectively, wherein:
Monitoring modular 4 is used for judging according to the status signal of first control module 2, output breakdown signal when first control module 2 breaks down;
In the present embodiment, mode of operation by 4 pairs first control modules 2 of monitoring modular is monitored, when first control module 2 breaks down, second control module 3 controls, first control module 2 quits work, substituting first control module 2 simultaneously comes control and driving module 5 to realize with drive motor that Parking is conciliate to stay, therefore when first control module 2 can't be worked, second control module 3 also can be controlled motor realization Parking reconciliation and stay, therefore can improve the safety and the stability of electronic brake system, reduce potential safety hazard.
In concrete enforcement, described monitoring modular 4 can be watchdog circuit, the pin of watchdog circuit is electrically connected the status signal that can obtain first control module 2 with the status pin of first control module 2, such as when status signal is high level, first control module, 2 normal operation, when being low level, status signal illustrates then that first control module 2 has fault to work, watchdog circuit is just exported reset signal and is given second control module 3, second control module 3 is just controlled first control module 2 according to this reset signal and is quit work, and substitutes first control module 2 simultaneously and comes control and driving module 5.
The utility model also provides another kind of embodiment electronic brake system, as shown in Figure 2, first power subsystem unit 62 and second source unit 63 that power module 6 in this enforcement comprises power control unit 61 and is used to provide electric energy, described first power subsystem unit 62 and second source unit 63 are electrically connected with the input end of described power control unit 61 respectively, the mouth of described power control unit 61 respectively with switch module 1, first control module 2, second control module 3, monitoring modular 4 and driver module 5 are electrically connected, wherein:
Power control unit 61, when being used for output voltage when first power subsystem unit 62 or second source unit 63 less than first setting voltage value, controlling this power subsystem unit quits work, promptly detect by the output voltage of power control unit 61 for first power subsystem unit 62 or second source unit 63, when the output voltage of first power subsystem unit 62 during less than first setting voltage value, power control unit 61 is just controlled first power subsystem unit 62 and is quit work, and provides electric energy by second source unit 63; When the output voltage of second source unit 63 during less than first setting voltage value, power control unit 61 is just controlled second source unit 63 and is quit work, and provides electric energy by first power subsystem unit 62; When the output voltage of first power subsystem unit 62 and second source unit 63 during all more than or equal to first setting voltage value, first power subsystem unit 62 and second source unit 63 provide electric energy simultaneously.
As shown in Figure 3, a kind of embodiment for power control unit 61, described power control unit 61 comprises selects chip A1, selecting the pin G1 of chip A1 is that grid is electrically connected with the control end of switching valve Q19, not shown among the pin E1 that selects chip A1 and first power subsystem unit 62(Fig. 3) output voltage terminal DV50-1 be electrically connected, the pin V1 that selects chip A1 promptly drains with the input end of switching valve Q19 respectively, the anode of output voltage DV50-1 and backward diode D1 is electrically connected, the negative electrode of backward diode D1 is that source electrode is electrically connected and exports digital voltage DV50 with the mouth of switching valve Q19, selecting the pin G2 of chip A1 is that grid is electrically connected with the control end of switching valve Q20, the pin V2 that selects chip A1 promptly drains with the input end of switching valve Q20 respectively, the output voltage DV50-2 of second source unit 63 and the anode of backward diode D3 are electrically connected, the mouth of the negative electrode of backward diode D3 and switching valve Q20 is that source electrode is connected with the cathodic electricity of backward diode D1 respectively, select the pin VS of chip A1 to be electrically connected with an end of inductance L 1, the other end of inductance L 1 respectively with capacitor C 1, one end of capacitor C 2 and resistance R 35 is electrically connected and output aanalogvoltage AV50, the other end of capacitor C 1 and capacitor C 2 is electrically connected with an end of inductance L 2 respectively and is electrically connected with ground GND, the other end of resistance R 35 is electrically connected with the anode of light-emitting diode D2, the negative electrode of light-emitting diode D2 is electrically connected with an end of inductance L 2 and is electrically connected with ground GND, the other end of inductance L 2 and the pin GND that selects chip A1 and pin E2 is electrically connected and be electrically connected with ground GND.By selecting chip A1 to judge that whether output voltage DV50-1 and output voltage DV50-2 are less than first voltage setting value, first voltage setting value is 5V in the present embodiment, when promptly the output voltage DV50-1 of first power subsystem unit 62 is less than 5V, select just master cock pipe Q19 disconnection of chip A1, first power subsystem unit 62 also just can't provide electric energy, but can not influence 63 power supplies of second source unit; As the output voltage DV50-2 of second source unit 63 during less than 5V, select chip A1 just master cock pipe Q20 disconnect, second source unit 63 also just can't provide electric energy, powers but can not influence first power subsystem unit 62; As output voltage DV50-1 and output voltage DV50-2 during more than or equal to 5V, first power subsystem unit 62 and second source unit 63 provide electric energy simultaneously, therefore when one of them power subsystem unit has fault, electronic brake system still can be guaranteed, so can improve the safety and the reliability of electronic brake system.
In concrete enforcement, in order to prevent the output signal mutual interference mutually of first control module 2 and second control module 3, described electronic brake system also comprises first isolation module and second isolation module that is used for Signal Spacing, the input end of described first isolation module is electrically connected with first control module, 2 mouths, the input end of second isolation module is electrically connected with the signal output part of second control module 3, the mouth of first isolation module and second isolation module is electrically connected with the input end of described driver module 5 respectively, and the mouth that enables of second control module 3 is electrically connected with the control end of described first isolation module and second isolation module respectively; Described power module 6 also is used for providing electric energy to described first isolation module and second isolation module.
In concrete enforcement, described driver module 5 can be relay drive circuit or H bridge driving circuit, first isolation module and second isolation module all are electrically connected with relay drive circuit or H bridge driving circuit, when second control module 3 receives the breakdown signal that first control module 2 goes wrong, just controlling first control module 2 quits work, make first isolation module that has been used for buffer action also quit work by enable signal simultaneously, to prevent to disturb the control signal of second isolation module output.
In concrete enforcement, for safety and the reliability that system further is provided, as shown in Figure 2, described driver module 5 comprises second driver element 52 that is used to drive first driver element 51 of first motor and drives second motor, described first isolation module comprises described first isolated location 71 and second isolated location 72, described second isolation module comprises the 3rd isolated location 73 and the 4th isolated location 74, the mouth of described first isolated location 71 and the 3rd isolated location 73 is electrically connected with first driver element 51, and the mouth of described second isolated location 72 and the 4th isolated location 74 is electrically connected with second driver element 52;
Described second control module 3, also be used for when the sampled voltage that receives first driver element 51 is lower than second setting voltage value, control first isolated location 71 or the 3rd isolated location 73 and quit work and control second isolated location 72 and the 4th isolated location 74 is started working.
As shown in Figure 4, in the present embodiment, described first control module 2 is the first control chip A2, second control module 3 is the second control chip A3, first isolated location 71 is the first isolating chip U1, second isolated location 72 is the second isolating chip U2, the 3rd isolated location 73 is the 3rd isolating chip U3, the 4th isolated location 74 is the 4th isolating chip U4, certain first isolated location 71, second isolated location 72, the 3rd isolated location 73 and the 4th isolated location 74 also can be the buffer circuits of forming by aerotron, be the common practise of this area, describe no longer one by one herein.
In concrete enforcement, the described first isolating chip U1, the second isolating chip U2, the 3rd isolating chip U3 and the 4th isolating chip U4 provide electric energy by the digital voltage DV50 of power control unit 61 outputs, the mouth of the first control chip A2 is electrically connected with the pin 1D-8D of the first isolating chip U1 and the pin 1D-8D of the second isolating chip U2 respectively, the signal output part of the second control chip A3 is electrically connected with the pin 1D-8D of the 3rd isolating chip U3 and the pin 1D-8D of the 4th isolating chip U4 respectively, the second control chip A3 enable mouth respectively with the described first isolating chip U1, the second isolating chip U2, the pin OC of the 3rd isolating chip U3 and the 4th isolating chip U4 is electrically connected.
When the first control chip A2 normal operation and first driver element, 51 energy normal operation, the pin OC that the second control chip A3 controls the first isolating chip U1 is a high level, the pin OC of the second isolating chip U2 is a low level, make and export first control signal that the first control chip A2 sends by the first isolating chip U1, control first driver element, 51 drive motor and carry out forward or reverse, thereby realize Parking or separate and stay.
When the first control chip A2 normal operation, and first driver element 51 breaks down, during second driver element, 52 energy normal operation, the pin OC that the second control chip A3 controls the first isolating chip U1 is a low level, the pin OC of the second isolating chip U2 is a high level, make and to export first control signal that the first control chip A2 sends, control second driver element, 52 drive motor and carry out forward or reverse, thereby realize Parking or separate and stay by the second isolating chip U2.
When the first control chip A2 breaks down and first driver element 51 can normal operation the time, the pin OC that the second control chip A3 controls the first isolating chip U1 and the second isolating chip U2 is low level, the pin OC of the 3rd isolating chip U3 is a high level, the pin OC of the 4th isolating chip U4 is a low level, make and export second control signal that the second control chip A3 sends by the 3rd isolating chip U3, control first driver element, 51 drive motor and carry out forward or reverse, thereby realize Parking or separate and stay.
When the first control chip A2 breaks down and also there is fault in first driver element 51, during second driver element, 52 energy normal operation, the pin OC that the second control chip A3 controls the first isolating chip U1 and the second isolating chip U2 is low level, the pin OC of the 3rd isolating chip U3 is a low level, the pin OC of the 4th isolating chip U4 is a high level, make and export second control signal that the second control chip A3 sends by the 4th isolating chip U4, control second driver element, 52 drive motor and carry out forward or reverse, thereby realize Parking or separate and stay.
And, owing in this system two driver elements are arranged, i.e. first driver element 51 and second driver element 52, when one of them driver element breaks down, another driver element can be worked, therefore can avoid can't Parking or separate the situation of staying as far as possible, and the safety and the reliability of system can further be provided.
In concrete enforcement, described first driver element 51 and second driver element 52 are respectively relay drive circuit and/or H bridge driving circuit, promptly first driver element 51 and second driver element 52 can be relay drive circuit, also can be H bridge driving circuit, can certainly be that first driver element 51 is relay drive circuit, second driver element 52 is a H bridge driving circuit, or first driver element 51 is H bridge driving circuit, and second driver element 52 is a relay drive circuit.
As shown in Figure 5 and Figure 6, present embodiment repeat circuit driving circuit comprises voltage amplifier U7, the first relay U6, the second relay U8 and four relay buffer circuits, the input end of described voltage amplifier U7 is electrically connected with the mouth J1-J4 of the first isolating chip U1 and the 3rd isolating chip U3 respectively, the mouth of described voltage amplifier U7 is electrically connected with the input end of the first relay U6 and the second relay U8 respectively, wherein four relay buffer circuits are the first relay buffer circuit, the second relay buffer circuit, the 3rd relay buffer circuit and the 4th relay buffer circuit, the mouth L3 of the first relay U6 is electrically connected with the 3rd relay buffer circuit, the mouth L4 of the first relay U6 is electrically connected with the 4th relay buffer circuit, the mouth L1 of the second relay U8 is electrically connected with the first relay buffer circuit, and the mouth L2 of the second relay U8 is electrically connected with the second relay buffer circuit.The first relay buffer circuit that is electrically connected with the second relay U8 and the circuit structure of the second relay buffer circuit only are shown among Fig. 6, and the 3rd relay buffer circuit and the 4th relay buffer circuit that are electrically connected with the first relay U6 have identical circuit structure with it.
Because vehicle needs to realize by two motors in the process of Parking, therefore described relay drive circuit is provided with the i.e. first relay U6 of two relays, the second relay U8 drives two motors respectively, the first relay U6 drives first motor, the second relay U8 drives second motor, and that the first relay U6 drives process is identical with the process of the second relay U8, below only drives another motor with regard to the second relay U8 and is described.
The first relay buffer circuit comprises the first divider resistance R59, the second divider resistance R54 and P type switching valve Q21, the control end of described P type switching valve Q21 is that grid is electrically connected with the end of the first divider resistance R59 and the second divider resistance R54 respectively, the other end of the described first divider resistance R59 is electrically connected with the mouth J5 of the first isolating chip U1 and the 3rd isolating chip U3 respectively, the input end of described P type switching valve Q21 is electrically connected with the mouth L1 of the second relay U8, and the mouth L11 of described P type switching valve Q21 is electrically connected with an end of motor; The second relay buffer circuit comprises the first divider resistance R58, the second divider resistance R55 and P type switching valve Q23, the control end of described P type switching valve Q23 is electrically connected with the end of the first divider resistance R58 and the second divider resistance R55 respectively, the other end of the described first divider resistance R58 is electrically connected with the mouth J6 of the first isolating chip U1 and the 3rd isolating chip U3 respectively, the described second divider resistance R54, the other end of R55 is electrically connected with the VCC power supply respectively, the input end of described P type switching valve Q23 is electrically connected with the mouth L2 of the second relay U8, and the mouth L12 of described P type switching valve Q23 is electrically connected with the other end of described motor.
When the first isolating chip U1 or the 3rd isolating chip U3 normal operation, the mouth J1-J8 of the first isolating chip U1 or the 3rd isolating chip U3 exports first control signal, driving the second relay U8 by mouth J1-J4 makes the mouth L1 of the second relay U8 be connected with power supply VCC and mouth L2 is connected with ground GND, or the mouth L2 of the second relay U8 is connected with power supply VCC and mouth L1 is connected with ground GND, trigger the P type switching valve Q21 conducting of the first relay buffer circuit by mouth J5, trigger the P type switching valve Q23 conducting of the second relay buffer circuit by mouth J6, when the mouth L1 of the second relay U8 is connected with power supply VCC and mouth L2 is connected with ground GND, the mouth L11 of so described P type switching valve Q21 is anodal, the mouth L12 of described P type switching valve Q23 is a negative pole, just changes thereby drive second motor; When the mouth L2 of the second relay U8 is connected with power supply VCC and mouth L1 is connected with ground GND, the mouth L11 of so described P type switching valve Q21 is a negative pole, and the mouth L12 of described P type switching valve Q23 is anodal, reverses thereby drive second motor.
In concrete enforcement, when first driver element 51 is main driving circuit, and first driver element 51 is when being relay drive circuit, relay drive circuit can comprise that also first detects the resistance R 38 and the second detection resistance R 51, first end that detects resistance R 38 is electrically connected with the pin NC of the first relay U6 and the input end of second control module 3 respectively, second end that detects resistance R 51 is electrically connected with the pin NC of the second relay U8 and the input end of second control module 3 respectively, and first other end that detects the resistance R 38 and the second detection resistance R 51 is electrically connected with ground GND respectively.
Its principle of work is as follows: second control module 3 detects resistance R 38 to first respectively and second voltage that detects resistance R 51 two ends detects, when one of them of this two magnitudes of voltage during less than second setting voltage value, the mouth J1-J8 of second control module, 3 control first isolating chip U1 or the 3rd isolating chip U3 stops to export control signal, make relay drive circuit quit work, the mouth of controlling the second isolating chip U2 or the 4th isolating chip U4 simultaneously begins to export control signal, makes second driver element 52 start working.
As shown in Figure 7, described H bridge driving circuit comprises two first driving circuits, and two second driving circuits and two the 3rd driving circuits below are described respectively.
One of them first driving circuit comprises the 3rd divider resistance R74, the 4th divider resistance R71 and P type switching valve Q26, the control end of described P type switching valve Q26 is electrically connected with the end of the 3rd divider resistance R74 and the 4th divider resistance R71 respectively, the other end of described the 3rd divider resistance R74 is electrically connected with the mouth PortA of the second isolating chip U2 and the 4th isolating chip U4 respectively, and the input end of the other end of described the 4th divider resistance R71 and described P type switching valve Q26 is electrically connected with the VCC power supply respectively.
And another first driving circuit is drawn together the 3rd divider resistance R75, the 4th divider resistance R69 and P type switching valve Q28, the control end of described P type switching valve Q28 is electrically connected with the end of the 3rd divider resistance R75 and the 4th divider resistance R69 respectively, the other end of described the 3rd divider resistance R75 is electrically connected with the mouth PortC of the second isolating chip U2 and the 4th isolating chip U4 respectively, and the input end of the other end of described the 4th divider resistance R69 and described P type switching valve Q28 is electrically connected with the VCC power supply respectively.
One of them second driving circuit comprises the 5th divider resistance R85 and N type switching valve, the control end of described N type switching valve Q33 is electrically connected with the 5th divider resistance R85 one end, the other end of the 5th divider resistance R85 is electrically connected with the mouth PortB of the second isolating chip U2 and the 4th isolating chip U4 respectively, the mouth of N type switching valve Q33 is electrically connected with the mouth of described P type switching valve Q26, and the input end of N type switching valve Q33 is electrically connected with ground GND.
And another second driving circuit comprises the 5th divider resistance R86 and N type switching valve Q35, the control end of described N type switching valve Q35 is electrically connected with the 5th divider resistance R86 one end, the other end of the 5th divider resistance R86 is electrically connected with the mouth PortD of the second isolating chip U2 and the 4th isolating chip U4 respectively, the mouth of N type switching valve Q35 is electrically connected with the mouth of described P type switching valve Q28, and the input end of N type switching valve Q35 is electrically connected with ground GND.
One of them the 3rd driving circuit comprises the 7th divider resistance R89, the 8th divider resistance R80 and P type switching valve Q30, the control end of described P type switching valve Q30 is electrically connected with the end of the 7th divider resistance R89 and the 8th divider resistance R80 respectively, the other end of described the 7th divider resistance R89 is electrically connected with the mouth PortE of the second isolating chip U2 and the 4th isolating chip U4 respectively, the other end of the 8th divider resistance R80 is electrically connected with the VCC power supply, the input end of described P type switching valve Q30 is electrically connected with the mouth of N type switching valve Q33, and the mouth L11 of described P type switching valve Q30 is electrically connected with an end of motor.
Another the 3rd driving circuit comprises the 7th divider resistance R90, the 8th divider resistance R81 and P type switching valve Q31, the control end of described P type switching valve Q31 is electrically connected with the end of the 7th divider resistance R90 and the 8th divider resistance R81 respectively, the other end of described the 7th divider resistance R90 is electrically connected with the mouth PortF of the second isolating chip U2 and the 4th isolating chip U4 respectively, the other end of the 8th divider resistance R81 is electrically connected with the VCC power supply, the input end of described P type switching valve Q31 is electrically connected with the mouth of N type switching valve Q35, and the mouth L12 of described P type switching valve Q31 is electrically connected with the other end of motor.
Below sketch H bridge drive circuit works principle: when signal output part PortA, PortE, PortF and the PortD of second control module, 3 control second isolating chip U2 or the 4th isolating chip U4 export second control signal, P type switching valve Q26, Q30, Q31 and N type switching valve Q35 conducting, make the mouth L11 of described P type switching valve Q30 be positive pole, the mouth L12 of described P type switching valve Q31 is a negative pole, thereby realizes the motor forward rotation; When signal output part PortC, PortF, PortE and the PortB of second control module, 3 control second isolating chip U2 or the 4th isolating chip U4 export second control signal, P type switching valve Q28, Q31, Q30 and N type switching valve Q33 conducting, make that the mouth L11 of described P type switching valve Q30 is a negative pole, the mouth L12 of described P type switching valve Q31 is anodal, thereby realizes the motor backward rotation.
In concrete enforcement, when first driver element 51 is main driving circuit, and first driver element 51 is when being H bridge driving circuit, as shown in Figure 7, described H bridge driving circuit comprises that also the 3rd detects resistance R 100 and the 4th detection resistance R 101, the 3rd detection resistance R 100 is arranged between the input end and ground GND of N type switching valve Q33, the 4th detection resistance R 101 is arranged between the input end and ground GND of N type switching valve Q35, second control module 3 detects resistance R 100 to the 3rd respectively and the 4th voltage that detects resistance R 101 two ends detects, when one of them of this two magnitudes of voltage during less than second setting voltage value, the signal output part of second control module, 3 control second isolating chip U2 or the 4th isolating chip U4 stops to export control signal, make H bridge driving circuit quit work, and the mouth of controlling the first isolating chip U1 or the 3rd isolating chip U3 simultaneously begins to export control signal, makes second driver element 52 start working.
The above only is preferred embodiment of the present utility model; not in order to restriction the utility model; all any modifications of within spirit of the present utility model and principle, being done, be equal to and replace and improvement etc., all should be included within the protection domain of the present utility model.
Claims (9)
1. electronic brake system, it is characterized in that, comprise switch module, first control module, second control module that is electrically connected with first control module, the monitoring modular that is electrically connected with first control module and second control module respectively, driver module and the power module that is electrically connected with first control module and second control module respectively, described power module is electrically connected with switch module, first control module, second control module, monitoring modular and driver module respectively;
Power module is used for to described switch module, first control module, and second control module, monitoring modular and driver module provide electric energy;
First control module is used for according to the user first control signal being exported in the operation of switch module, and output status signal;
Monitoring modular is used for judging according to the status signal of first control module, output breakdown signal when first control module breaks down;
Second control module is controlled first control module when being used to receive the breakdown signal of monitoring modular and is quit work, and according to the user second control signal is exported in the operation of switch module then;
Driver module is used for according to first control signal or second control signal, drive motor work.
2. electronic brake system as claimed in claim 1, it is characterized in that, first power subsystem unit and second source unit that described power module comprises power control unit and is used to provide electric energy, described first power subsystem unit and second source unit are electrically connected with the input end of described power control unit respectively, the mouth of described power control unit respectively with switch module, first control module, second control module, monitoring modular and driver module are electrically connected;
Power control unit when being used for output voltage when first power subsystem unit or second source unit less than first setting voltage value, being controlled this power subsystem unit and is quit work.
3. electronic brake system as claimed in claim 2, it is characterized in that, described electronic brake system also comprises first isolation module and second isolation module that is used for Signal Spacing, the input end of described first isolation module is electrically connected with the first control module mouth, the input end of second isolation module is electrically connected with the signal output part of second control module, the mouth of first isolation module and second isolation module is electrically connected with the input end of described driver module respectively, and the control end of described first isolation module and second isolation module is electrically connected with the mouth that enables of second control module respectively;
Described power module also is used for providing electric energy to described first isolation module and second isolation module.
4. electronic brake system as claimed in claim 3, it is characterized in that, described driver module comprises second driver element that is used to drive first driver element of first motor and is used to drive second motor, described first isolation module comprises first isolated location and second isolated location, described second isolation module comprises the 3rd isolated location and the 4th isolated location, the mouth of described first isolated location and the 3rd isolated location is electrically connected with first driver element, and the mouth of described second isolated location and the 4th isolated location is electrically connected with second driver element;
Described second control module also is used for when the sampled voltage that receives first driver element is lower than second setting voltage value, controls first isolated location or the 3rd isolated location and quits work and control two isolated locations or the 4th isolated location is started working.
5. electronic brake system as claimed in claim 4 is characterized in that, described first driver element and second driver element are respectively relay drive circuit and/or H bridge driving circuit.
6. electronic brake system as claimed in claim 5, it is characterized in that, described relay drive circuit comprises voltage amplifier, first relay, second relay and four relay buffer circuits, the input end of described voltage amplifier is electrically connected with the mouth of first isolated location and the 3rd isolated location respectively, the mouth of described voltage amplifier is electrically connected with the input end of first relay and second relay respectively, wherein said each relay buffer circuit comprises first divider resistance, second divider resistance and P type switching valve, described P type control end of switching tube is electrically connected with an end of first divider resistance and second divider resistance respectively, the other end of described first divider resistance is electrically connected with the mouth of first isolated location and the 3rd isolated location respectively, the other end of described second divider resistance is electrically connected with the VCC power supply, wherein the input end of P type switching valve is electrically connected with the mouth of first relay in two relay buffer circuits, and described P type output end of switching tube is electrically connected with described first motor, the input end of P type switching valve is electrically connected with the mouth of second relay in two other relay buffer circuit, and described P type output end of switching tube is electrically connected with described second motor.
7. electronic brake system as claimed in claim 5 is characterized in that, described H bridge driving circuit comprises two first driving circuits, two second driving circuits and two the 3rd driving circuits;
Each first driving circuit is drawn together the 3rd divider resistance, the 4th divider resistance and P type switching valve, described P type control end of switching tube is electrically connected with an end of the 3rd divider resistance and the 4th divider resistance respectively, the other end of described the 3rd divider resistance is electrically connected with the mouth of second isolated location and the 4th isolated location respectively, and the other end of described the 4th divider resistance and described P type output end of switching tube are electrically connected with the VCC power supply respectively;
Each second driving circuit comprises the 5th divider resistance and N type switching valve, described N type control end of switching tube is electrically connected with the 5th divider resistance one end, the other end of the 5th divider resistance is electrically connected with the mouth of second isolated location and the 4th isolated location respectively, N type output end of switching tube is electrically connected with the input end of described P type switching valve, the input end of N type switching valve be electrically connected;
Each the 3rd driving circuit comprises the 7th divider resistance, the 8th divider resistance and P type switching valve, described P type control end of switching tube is electrically connected with an end of the 7th divider resistance and the 8th divider resistance respectively, the other end of described the 7th divider resistance is electrically connected with the mouth of second isolated location and the 4th isolated location respectively, the other end of the 8th divider resistance is electrically connected with the VCC power supply, the input end of described P type switching valve is electrically connected with N type output end of switching tube, and described P type output end of switching tube is electrically connected with motor.
8. electronic brake system as claimed in claim 1 is characterized in that, described monitoring modular is a watchdog circuit.
9. electronic brake system as claimed in claim 1 is characterized in that, described driver module is relay drive circuit or H bridge driving circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200208478U CN201998976U (en) | 2011-01-24 | 2011-01-24 | Electronic parking brake system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200208478U CN201998976U (en) | 2011-01-24 | 2011-01-24 | Electronic parking brake system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201998976U true CN201998976U (en) | 2011-10-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200208478U Expired - Lifetime CN201998976U (en) | 2011-01-24 | 2011-01-24 | Electronic parking brake system |
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| CN (1) | CN201998976U (en) |
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| CN103987596A (en) * | 2011-12-07 | 2014-08-13 | 大陆-特韦斯贸易合伙股份公司及两合公司 | Method and electronic device for improving the availability of electromechanical actuator |
| CN104049530A (en) * | 2013-03-14 | 2014-09-17 | 通用汽车环球科技运作有限责任公司 | Fault tolerant control system |
| CN104192118A (en) * | 2014-08-29 | 2014-12-10 | 长城汽车股份有限公司 | Electronic parking brake system controller and vehicle |
| CN104369732A (en) * | 2014-11-03 | 2015-02-25 | 重庆小康工业集团股份有限公司 | Alarming control management device applied to electric car propellant system |
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| CN109747615A (en) * | 2018-02-13 | 2019-05-14 | 重庆长安汽车股份有限公司 | Automatic driving vehicle braking system and control method |
| CN109823330A (en) * | 2018-08-13 | 2019-05-31 | 格陆博科技有限公司 | A kind of EPB braking standby system |
| CN109843673A (en) * | 2016-10-20 | 2019-06-04 | 卢卡斯汽车股份有限公司 | The system of independent control unit including the actuating unit for electric parking brake |
| CN109969322A (en) * | 2017-10-24 | 2019-07-05 | 株式会社岛野 | Brake system |
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| CN110228453A (en) * | 2019-06-04 | 2019-09-13 | 中国第一汽车股份有限公司 | A kind of parking control method, device and the vehicle of vehicle |
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| CN111516657A (en) * | 2019-02-02 | 2020-08-11 | 上海汽车集团股份有限公司 | Braking system and braking method |
| CN111674379A (en) * | 2020-06-19 | 2020-09-18 | 上海万捷汽车控制系统有限公司 | Electronic parking control system |
| CN113173078A (en) * | 2021-04-19 | 2021-07-27 | 联合汽车电子有限公司 | Monitoring system, monitoring method and readable storage medium for realizing electronic parking function based on motor controller |
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| CN103987596A (en) * | 2011-12-07 | 2014-08-13 | 大陆-特韦斯贸易合伙股份公司及两合公司 | Method and electronic device for improving the availability of electromechanical actuator |
| CN104049530A (en) * | 2013-03-14 | 2014-09-17 | 通用汽车环球科技运作有限责任公司 | Fault tolerant control system |
| CN104192118A (en) * | 2014-08-29 | 2014-12-10 | 长城汽车股份有限公司 | Electronic parking brake system controller and vehicle |
| CN104192118B (en) * | 2014-08-29 | 2017-01-04 | 长城汽车股份有限公司 | Electronic brake system controller and vehicle |
| CN104369732A (en) * | 2014-11-03 | 2015-02-25 | 重庆小康工业集团股份有限公司 | Alarming control management device applied to electric car propellant system |
| CN104579114A (en) * | 2014-12-26 | 2015-04-29 | 青岛歌尔声学科技有限公司 | Motor drive protection circuit and electrical products with same |
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| EP3562719B1 (en) | 2016-12-27 | 2021-11-24 | ZF Active Safety GmbH | Controller for parking brake of a vehicle |
| CN109591568A (en) * | 2017-09-29 | 2019-04-09 | 比亚迪股份有限公司 | Hybrid vehicle and its steady slope control method, device |
| CN109969322A (en) * | 2017-10-24 | 2019-07-05 | 株式会社岛野 | Brake system |
| CN108162946A (en) * | 2017-11-20 | 2018-06-15 | 浙江亚太机电股份有限公司 | A kind of parking electric automobile braking control system using integrated form ECU |
| CN108162947A (en) * | 2017-11-20 | 2018-06-15 | 浙江亚太机电股份有限公司 | A kind of parking control system for electric vehicle |
| CN108177558A (en) * | 2017-11-20 | 2018-06-19 | 浙江亚太机电股份有限公司 | A kind of parking electric automobile control system |
| CN108177557A (en) * | 2017-11-20 | 2018-06-19 | 浙江亚太机电股份有限公司 | A kind of electric vehicle P keeps off parking control system |
| CN108170114A (en) * | 2017-11-20 | 2018-06-15 | 浙江亚太机电股份有限公司 | A kind of EPB control systems of band failure backup functionality |
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| CN110091853A (en) * | 2018-01-30 | 2019-08-06 | 株式会社万都 | ECU and ECU method of operating |
| CN110091853B (en) * | 2018-01-30 | 2023-05-05 | 汉拿万都株式会社 | ECU and ECU operation method |
| CN108248581A (en) * | 2018-01-31 | 2018-07-06 | 北京新能源汽车股份有限公司 | A kind of electronic parking control method, device and electric vehicle |
| CN109747615A (en) * | 2018-02-13 | 2019-05-14 | 重庆长安汽车股份有限公司 | Automatic driving vehicle braking system and control method |
| CN110745118B (en) * | 2018-07-23 | 2021-04-20 | 比亚迪股份有限公司 | Electronic parking switch and vehicle |
| CN110745118A (en) * | 2018-07-23 | 2020-02-04 | 比亚迪股份有限公司 | Electronic parking switch and vehicle |
| CN109823330A (en) * | 2018-08-13 | 2019-05-31 | 格陆博科技有限公司 | A kind of EPB braking standby system |
| CN111169451A (en) * | 2018-11-12 | 2020-05-19 | 比亚迪股份有限公司 | Parking control system, control method and vehicle with parking control system |
| CN111516657A (en) * | 2019-02-02 | 2020-08-11 | 上海汽车集团股份有限公司 | Braking system and braking method |
| CN111516657B (en) * | 2019-02-02 | 2021-05-25 | 上海汽车集团股份有限公司 | Braking system and braking method |
| CN113646215B (en) * | 2019-03-29 | 2024-04-12 | 汉拿万都株式会社 | Braking system |
| CN113646215A (en) * | 2019-03-29 | 2021-11-12 | 株式会社万都 | Brake system |
| CN110228453A (en) * | 2019-06-04 | 2019-09-13 | 中国第一汽车股份有限公司 | A kind of parking control method, device and the vehicle of vehicle |
| CN113492678A (en) * | 2020-04-07 | 2021-10-12 | 蜂巢传动系统(江苏)有限公司保定研发分公司 | Drive motor control system and method for ensuring safety thereof |
| CN111674379A (en) * | 2020-06-19 | 2020-09-18 | 上海万捷汽车控制系统有限公司 | Electronic parking control system |
| WO2022133744A1 (en) * | 2020-12-22 | 2022-06-30 | 华为技术有限公司 | Parking brake system of automobile, automobile and control method therefor |
| CN114655182A (en) * | 2020-12-24 | 2022-06-24 | 比亚迪股份有限公司 | Control method of electronic parking brake system, electronic equipment and vehicle |
| CN113173078A (en) * | 2021-04-19 | 2021-07-27 | 联合汽车电子有限公司 | Monitoring system, monitoring method and readable storage medium for realizing electronic parking function based on motor controller |
| CN115123170A (en) * | 2022-08-10 | 2022-09-30 | 阿波罗智能技术(北京)有限公司 | Vehicle braking apparatus, vehicle braking method, and autonomous vehicle |
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