CN113085998A - Steering control circuit board for vehicle - Google Patents
Steering control circuit board for vehicle Download PDFInfo
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- CN113085998A CN113085998A CN202110468277.7A CN202110468277A CN113085998A CN 113085998 A CN113085998 A CN 113085998A CN 202110468277 A CN202110468277 A CN 202110468277A CN 113085998 A CN113085998 A CN 113085998A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D5/00—Power-assisted or power-driven steering
- B62D5/04—Power-assisted or power-driven steering electrical, e.g. using an electric servo-motor connected to, or forming part of, the steering gear
- B62D5/0457—Power-assisted or power-driven steering electrical, e.g. using an electric servo-motor connected to, or forming part of, the steering gear characterised by control features of the drive means as such
- B62D5/046—Controlling the motor
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D5/00—Power-assisted or power-driven steering
- B62D5/04—Power-assisted or power-driven steering electrical, e.g. using an electric servo-motor connected to, or forming part of, the steering gear
- B62D5/0457—Power-assisted or power-driven steering electrical, e.g. using an electric servo-motor connected to, or forming part of, the steering gear characterised by control features of the drive means as such
- B62D5/0481—Power-assisted or power-driven steering electrical, e.g. using an electric servo-motor connected to, or forming part of, the steering gear characterised by control features of the drive means as such monitoring the steering system, e.g. failures
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- Combustion & Propulsion (AREA)
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- Mechanical Engineering (AREA)
- Power Steering Mechanism (AREA)
Abstract
The invention relates to a vehicle steering control circuit board, comprising: the device comprises a control module, a power management module, a signal acquisition module, a motor driving module and a communication module; the control module is connected with the power management module, the signal acquisition module, the motor driving module and the communication module; the power management module is connected with the signal acquisition module, the motor driving module and the communication module and supplies power to the control module, the signal acquisition module, the motor driving module and the communication module; the communication module carries out information interaction with the whole vehicle; the signal acquisition module outputs the acquired signals to the control module; the control module is of a main and auxiliary double-data signal processing chip structure.
Description
Technical Field
The application relates to the technical field of electric power steering of commercial vehicles, in particular to a steering control circuit board for a vehicle.
Background
Along with the development of commercial vehicle technology, the requirement of a user on the safety of an automobile is higher and higher, the driving assistance technology is widely applied to the commercial vehicle, the active safety becomes the necessary technical requirement of the commercial vehicle, and the fault diagnosis and the failure protection of the electric power steering controller are the important guarantee of the active safety.
At present, a steering controller Circuit Board in the prior art mainly comprises a Central Processing Unit (CPU) Circuit, a front wheel acquisition Circuit, a rear wheel acquisition Circuit, a vehicle speed conversion Circuit and a steering drive Circuit, wherein a power supply Circuit Board and a control Board are not designed on a Printed Circuit Board (PCB), and the design has the defects of low integration level, high cost, inconvenient installation, long power supply line and the like.
In order to meet the requirement of safety function, a new vehicle steering control circuit board needs to be provided to meet the current steering system of the commercial vehicle.
Disclosure of Invention
Based on the technical scheme, the invention provides the vehicle steering control circuit board which can overcome the defects of the prior art.
In order to achieve the above object, the present invention provides a steering control circuit board for a vehicle, comprising: the device comprises a control module, a power management module, a signal acquisition module, a motor driving module and a communication module; the control module is connected with the power management module, the signal acquisition module, the motor driving module and the communication module; the power management module is connected with the signal acquisition module, the motor driving module and the communication module and supplies power to the control module, the signal acquisition module, the motor driving module and the communication module; the communication module carries out information interaction with the whole vehicle; the signal acquisition module outputs the acquired signal to the control module;
the control module is of a main and auxiliary double-data signal processing chip structure.
In one embodiment, the power management module includes: the power supply protection circuit comprises a power supply management chip, an overvoltage detection circuit, an undervoltage detection circuit, an overcurrent detection circuit, an overtemperature detection circuit and a switch protection device; the power management chip is connected with the control module, the signal acquisition module, the motor driving module and the communication module, and the overvoltage detection circuit, the undervoltage detection circuit, the overcurrent detection circuit and the overtemperature detection circuit are connected with the control module; the overvoltage detection circuit, the undervoltage detection circuit, the overcurrent detection circuit and the overtemperature detection circuit are all connected with the power management chip to detect the working state of the power management chip in real time; the switch protection device is connected with the power management chip and is externally connected with a vehicle-mounted power supply.
In one embodiment, the signal acquisition module comprises: the device comprises a steering wheel corner signal acquisition unit, a torque signal acquisition unit and a motor position signal acquisition unit; the steering wheel corner signal acquisition unit, the torque signal acquisition unit and the motor position signal acquisition unit are connected with the power management chip; the steering wheel corner signal acquisition unit, the torque signal acquisition unit and the motor position signal acquisition unit are all connected with the control module; the signal acquisition module processes the acquired signals and outputs the processed signals to the control module.
In one embodiment, the motor driving module includes: the device comprises a motor driving chip, a three-phase bridge circuit, a temperature sampling circuit, a current sampling circuit and a relay; the motor driving chip, the three-phase bridge circuit, the temperature sampling circuit and the current sampling circuit are all connected with the power management chip; the motor driving chip is connected with the three-phase bridge circuit and the control module, the three-phase bridge circuit is connected with the relay, and the relay is externally connected with a motor; the temperature sampling circuit is connected with the motor driving chip and the three-phase bridge circuit; the current sampling circuit is connected with the motor driving chip and the three-phase bridge circuit.
In one embodiment, the motor driving chip receives the PWM signal output by the control module, performs power amplification, and outputs and controls the PWM signal to the three-phase bridge circuit, and the motor driving chip outputs the collected information of the temperature sampling circuit and the current sampling circuit to the control module.
In one embodiment, the three-phase bridge circuit is composed of a plurality of insulated gate bipolar transistors, and the maximum operating current of the three-phase bridge circuit is 50A.
In one embodiment, the communication module comprises a CAN communication unit, the CAN communication unit is connected with the power management chip, and the CAN communication unit is connected with the control module; the communication module is used for calibrating inductance parameters, collecting the rotating speed of the motor and compensating speed signals.
In one embodiment, the control module comprises a first digital signal processing chip and a second digital signal processing chip, wherein the first digital signal processing chip and the second digital signal processing chip are connected through a serial peripheral interface bus; the first digital signal processing chip is a main digital signal processing chip, and the second digital signal processing chip is an auxiliary digital signal processing chip;
the first digital signal processing chip is connected with the power management chip, the overvoltage detection circuit, the undervoltage detection circuit, the overcurrent detection circuit, the overtemperature detection circuit, the steering wheel corner signal acquisition unit, the torque signal acquisition unit, the motor position signal acquisition unit, the motor driving chip, the relay and the CAN communication unit;
the second digital signal processing chip is connected with the power management chip, the overvoltage detection circuit, the undervoltage detection circuit, the overcurrent detection circuit, the overtemperature detection circuit, the steering wheel corner signal acquisition unit, the torque signal acquisition unit, the motor position signal acquisition unit, the motor driving chip, the relay and the CAN communication unit.
In one embodiment, the first digital signal processing chip and the second digital signal processing chip both receive and process information of the power management chip, the overvoltage detection circuit, the undervoltage detection circuit, the overcurrent detection circuit, the overtemperature detection circuit, the steering wheel corner signal acquisition unit, the torque signal acquisition unit, the motor position signal acquisition unit and the CAN communication unit, and the first digital signal processing chip and the second digital signal processing chip perform information transmission and mutual check through a serial peripheral interface bus to ensure accurate information sampling; the first digital signal processing chip outputs state information to the second digital signal processing chip, and the second digital signal processing chip detects the working state of the first digital signal processing chip in real time; when the first digital signal processing chip works normally, the first digital signal processing chip outputs a PWM signal to the motor driving chip, and when the first digital signal processing chip works normally, the second digital signal processing chip does not output the PWM signal to the motor driving chip; when the second digital signal processing chip detects that the first digital signal processing chip is abnormal, the second digital signal processing chip outputs a PWM signal to the motor driving chip or controls the relay to cut off a circuit.
In one embodiment, the motor driving module is arranged on one side of a circuit board, and the control module, the power management module, the signal acquisition module and the communication module are arranged on the opposite side of the circuit board; the working voltage of the motor driving module is greater than the working voltages of the control module, the power management module, the signal acquisition module and the communication module.
The invention has the beneficial effects that: the steering control circuit board for the vehicle mainly comprises a control module, a power management module, a signal acquisition module, a motor driving module and a communication module; the control module comprises two digital signal processing chips, a main digital signal processing chip and an auxiliary digital signal processing chip are connected and perform information transmission and mutual check to ensure accurate information sampling by adopting a double-digital-signal processing chip redundancy design, the auxiliary digital signal processing chip supervises the working state of the main digital signal processing chip at any time, and if abnormal conditions exist, the auxiliary digital signal processing chip adopts an emergency take-over and emergency protection means to ensure that the motor control is safer. And each module is integrated on one circuit board, so that the volume occupied by the steering controller circuit board is greatly reduced, the integration level is higher, the assembly and disassembly are convenient, and the stability of the system is improved.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments or the conventional technologies of the present application, the drawings used in the descriptions of the embodiments or the conventional technologies will be briefly introduced below, it is obvious that the drawings in the following descriptions are only some embodiments of the present application, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a schematic diagram of a vehicular steering control circuit board structure.
Fig. 2 is a design diagram of a vehicle steering control circuit board module.
Detailed Description
To facilitate an understanding of the present application, the present application will now be described more fully with reference to the accompanying drawings. Embodiments of the present application are set forth in the accompanying drawings. This application may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein in the description of the present application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application.
In the description herein, references to the description of "some embodiments," "other embodiments," "desired embodiments," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, a schematic description of the above terminology may not necessarily refer to the same embodiment or example.
In order to solve the problems of low integration level, high cost, inconvenient installation, long power supply line, lack of active safety protection and the like of a steering controller circuit board in the prior art, the vehicle steering control circuit board which meets the safety function requirement and has overvoltage, undervoltage, overcurrent, short-circuit protection and overheating protection design needs to be provided.
Referring to fig. 1 and 2, the present embodiment provides a vehicle steering control circuit board, including: the control module 10, the power management module 20, the signal acquisition module 30, the motor driving module 40 and the communication module 50; the control module 10 is connected with the power management module 20, the signal acquisition module 30, the motor driving module 40 and the communication module 50; the power management module 20 is connected with the signal acquisition module 30, the motor driving module 40 and the communication module 50, and the power management module 20 supplies power to the control module 10, the signal acquisition module 30, the motor driving module 40 and the communication module 50; the communication module 50 performs information interaction with the whole vehicle; the signal acquisition module 30 outputs the acquired signal to the control module 40; the control module 40 is a main-auxiliary double-data signal processing chip structure.
Specifically, the control module 10 adopts a main-auxiliary dual-data signal processing chip structure, and the main-auxiliary dual-data signal processing chip and the auxiliary data signal processing chip perform information transmission and mutual information verification, so as to ensure accurate information sampling of the main-auxiliary dual-data signal processing chip, and the auxiliary data signal processing chip constantly monitors the working state of the main-auxiliary dual-data signal processing chip.
The steering control circuit board for the vehicle provided by the embodiment mainly comprises a control module 10, a power management module 20, a signal acquisition module 30, a motor driving module 40 and a communication module 50; the control module 10 comprises two digital signal processing chips, a main digital signal processing chip and an auxiliary digital signal processing chip are connected by adopting a double-digital-signal processing chip redundancy design, information transmission and mutual check are carried out to ensure accurate information sampling, the auxiliary digital signal processing chip supervises the working state of the main digital signal processing chip at any time, and if abnormal conditions exist, the auxiliary digital signal processing chip ensures that the motor control is safer by adopting an emergency take-over and emergency protection means. And each module is integrated on one circuit board, so that the volume occupied by the steering controller circuit board is greatly reduced, the integration level is higher, the assembly and disassembly are convenient, and the stability of the system is improved.
Referring to fig. 2, in one embodiment, the control module 10 employs a data signal processing chip redundancy design method using a data signal processing chip including, but not limited to, TMS320F28335 as a primary data signal processing chip (first digital processing chip 101) and a secondary data signal processing chip (second digital processing chip 102). In this embodiment, the TMS320F28335 data signal processing chips are preferably a main data signal processing chip and a sub data signal processing chip. The TMS320F28335 data signal processing chip meets the vehicle specification level standard, adopts a high-performance static Complementary Metal-Oxide-Semiconductor (CMOS) technology, has a main frequency operation of 150M, is packaged with 128 pins by a small square Flat Package (QFP) technology, and can be debugged by a JTAG external crystal oscillator. The main data signal processing chip and the auxiliary data signal processing chip communicate with each other through a Serial Peripheral Interface (SPI for short) bus. The control module greatly improves the active safety control by using a redundancy design, and once the main data signal processing chip fails, the auxiliary data signal processing chip can take over the control, so that the normal work of the system is kept.
In one embodiment, power management module 20 includes: the power supply protection circuit comprises a power supply management chip 201, an overvoltage detection circuit 202, an undervoltage detection circuit 203, an overcurrent detection circuit 204, an overtemperature detection circuit 205 and a switch protection device 206; the power management chip 201 is connected with the control module 10, the signal acquisition module 30, the motor driving module 40 and the communication module 50, and the overvoltage detection circuit 202, the undervoltage detection circuit 203, the overcurrent detection circuit 204 and the overtemperature detection circuit 205 are connected with the control module 10; the overvoltage detection circuit 202, the undervoltage detection circuit 203, the overcurrent detection circuit 204 and the overtemperature detection circuit 205 are all connected with the power management chip 201, and detect the working state of the power management chip 201 in real time; the switch protection device 206 is connected with the power management chip 201, and the switch protection device 206 is externally connected with a vehicle-mounted power supply.
Specifically, the Power Management module 20 is designed by using a Power Management chip 201, i.e., a Power Management Unit (PMU). This highly integrated power management scheme for portable applications, which integrates several types of power management devices, traditionally separated, into a single package, allows for higher power conversion efficiency and lower power consumption, as well as fewer components to fit in a reduced board-level space. The power management module 20 has an overvoltage detection circuit 202, an undervoltage detection circuit 203, an overcurrent detection circuit 204, and an overtemperature detection circuit 205, and can cut off the input power supply through a switch protection device 206 to protect the circuit when the circuit is abnormal.
In one embodiment, the power management module 20 uses the TLE6368-G2 power management chip of the vehicle scale level as the power management chip 201, the input source 24V voltage of the TLE6368-G2 power management chip is from the vehicle power supply, and multiple voltages can be output for the primary data signal processing chip, the secondary data signal processing chip and the sensor. The TLE6368-G2 power management chip has higher integration level, occupies less space on a circuit board, and has stronger protection capability and higher reliability compared with a discrete Low Dropout Regulator (LDO) chip. The design of the power chips in the power management module 20 is a key factor in improving active safety.
In one embodiment, the power management module 20 has an over-voltage detection circuit 202 and an under-voltage detection circuit 203 inside, and the over-voltage detection circuit 202 and the under-voltage detection circuit 203 perform a reset operation or an early warning function when an abnormality occurs by tracking the output voltage level of each linear regulator. The power management module 20 further has an over-current detection circuit 204, so that all output terminals of the power management module 20 have a short-circuit protection function. The power management module 20 further has an over-temperature detection circuit 205, and performs over-temperature protection when the operating temperature of the TLE6368-G2 power management chip is higher than 170 ℃, and sends information to the control module 10 when the TLE6368-G2 power management chip fails, and then the control module 10 reads the cause of the error through the SPI bus and outputs a protection circuit signal.
In one embodiment, the signal acquisition module 30 includes, but is not limited to: a steering wheel corner signal acquisition unit 301, a torque signal acquisition unit 302 and a motor position signal acquisition unit 303; the steering wheel corner signal acquisition unit 301, the torque signal acquisition unit 302 and the motor position signal acquisition unit 303 are connected with the power management chip 201; the steering wheel corner signal acquisition unit 301, the torque signal acquisition unit 302 and the motor position signal acquisition unit 303 are all connected with the control module 10; the signal acquisition module 30 processes the acquired signal and outputs the processed signal to the control module 10.
Specifically, in the signal collection module 30, signals collected from the steering wheel angle signal collection unit 301, the torque signal collection unit 302, and the motor position signal collection unit 303 need to be subjected to hardware circuit matching, pull-up and pull-down, and RC filtering operations, and then the processed signals are transmitted to the control module 10. I.e. the signal acquisition module 30 has the functions of signal conditioning and low-pass filtering.
In one embodiment, the motor drive module 40 includes: a motor driving chip 401, a three-phase bridge circuit 402, a temperature sampling circuit 403, a current sampling circuit 404 and a relay 405; the motor driving chip 401, the three-phase bridge circuit 402, the temperature sampling circuit 403, the current sampling circuit 404 and the relay 405 are all connected with the power management chip 201; the motor driving chip 401 is connected with the three-phase bridge circuit 402 and the control module 10, the three-phase bridge circuit 402 is connected with the relay 405, and the relay 405 is externally connected with a motor; the temperature sampling circuit 403 is connected with the motor driving chip 401 and the three-phase bridge circuit 402; the current sampling circuit 404 connects the motor drive chip 401 and the three-phase bridge circuit 402.
In one embodiment, the motor driving chip 401 receives the PWM signal output by the control module 10, performs power amplification, and outputs and controls the PWM signal to the three-phase bridge circuit 402, and the motor driving chip 401 outputs the collected information of the temperature sampling circuit 403 and the current sampling circuit 404 to the control module 10.
Specifically, when the temperature of the three-phase bridge circuit 402 is too high, the control module 10 receives the signal of the too high temperature and then protects the three-phase bridge circuit 402. The output end of the three-phase bridge circuit 402 is connected with the relay 405, and when the control module 10 is abnormal, the relay 405 can be emergently disconnected to play an active safety protection mechanism.
In one embodiment, the three-phase bridge circuit 402 is formed by several insulated gate bipolar transistors, and the maximum operating current of the three-phase bridge circuit 402 is 50A.
In one embodiment, the three-phase bridge circuit 402 is composed of 6 insulated gate bipolar transistors, the motor driving chip 401 adopts a TLE9180D-31QK driving chip, and the operating voltage of the TLE9180D-31QK driving chip is 24V.
In one embodiment, the motor drive module 40 has temperature sampling and current sampling functions. The current sampling circuit 404 calculates a current value by detecting a voltage flowing across the high-precision 1m Ω resistor. The temperature sampling circuit 403 detects the temperature generated by the three-phase bridge circuit 402. The motor driver chip 401 transmits the current sampling information and the temperature sampling information to the control module 10 through the SPI bus, and the control module 10 can realize the PID current loop control and the overheat protection of the current feedback information. The output end of the three-phase bridge circuit 402 is connected with the relay 405, and when the control module 10 is abnormal, the relay 405 can be switched off emergently to play a role in actively protecting the motor safely. And still be provided with the TVS pipe at three-phase bridge circuit 402's output, can avoid breaking relay 405 back motor and produce too big back electromotive force and damage three-phase bridge circuit.
In one embodiment, the communication module 50 includes a CAN communication unit 501, the CAN communication unit 501 is connected to the power management chip 201, and the CAN communication unit 501 is connected to the control module 10; the communication module 50 is used for calibrating inductance parameters, collecting motor rotation speed and compensating vehicle speed signals.
Specifically, the CAN communication unit 501 is composed of a TVS tube, a common mode, and a transceiver. Two paths of CAN communication interfaces are arranged on each TMS320F28335 data signal processing chip, and in the embodiment, the CAN communication unit 501 adopts a high-speed CAN transceiver with the model number of TJA1051T/3 to carry out communication design. And the communication module 50 has an electrostatic protection function. The communication module 50 can realize the function of communication with the whole vehicle.
In one embodiment, the control module 10 includes a first digital signal processing chip 101 and a second digital signal processing chip 102, the first digital signal processing chip 101 and the second digital signal processing chip 102 are connected through a serial peripheral interface bus; the first digital signal processing chip 101 is a main digital signal processing chip, and the second digital signal processing chip 102 is a sub-digital signal processing chip.
The first digital signal processing chip 101 is connected with a power management chip 201, an overvoltage detection circuit 202, an undervoltage detection circuit 203, an overcurrent detection circuit 204, an overtemperature detection circuit 205, a steering wheel angle signal acquisition unit 301, a torque signal acquisition unit 302, a motor position signal acquisition unit 303, a motor drive chip 401, a relay 405 and a CAN communication unit 501.
The second digital signal processing chip 102 is connected with a power management chip 201, an overvoltage detection circuit 202, an undervoltage detection circuit 203, an overcurrent detection circuit 204, an overtemperature detection circuit 205, a steering wheel angle signal acquisition unit 301, a torque signal acquisition unit 302, a motor position signal acquisition unit 303, a motor drive chip 401, a relay 405 and a CAN communication unit 501.
In one embodiment, the first digital signal processing chip 101 and the second digital signal processing chip 102 both receive and process information of the power management chip 201, the overvoltage detection circuit 202, the undervoltage detection circuit 203, the overcurrent detection circuit 204, the overtemperature detection circuit 205, the steering wheel corner signal acquisition unit 301, the torque signal acquisition unit 302, the motor position signal acquisition unit 303 and the CAN communication unit 501, and the first digital signal processing chip 101 and the second digital signal processing chip 102 perform information transmission and mutual verification through a serial peripheral interface bus to ensure accurate information sampling; the first digital signal processing chip 101 outputs state information to the second digital signal processing chip 102, and the second digital signal processing chip 102 detects the working state of the first digital signal processing chip 101 in real time; when the first digital signal processing chip 101 works normally, the first digital signal processing chip 101 outputs a PWM signal to the motor driving chip 401, and when the first digital signal processing chip 101 works normally, the second digital signal processing chip 102 does not output a PWM signal to the motor driving chip 401; when the second digital signal processing chip 102 detects that the first digital signal processing chip 101 is abnormal, the second digital signal processing chip 102 outputs a PWM signal to the motor driving chip 401 or the control relay 405 to cut off the line.
Specifically, in the vehicle steering control circuit board provided in this embodiment, the control module 10 is designed by using a dual digital signal processing chip for redundancy, mutual information verification is performed through the SPI bus, when the primary digital signal processing chip fails, the secondary digital signal processing chip can take over the work completely, so as to play a role of dual fail-safe, and the system stability can be ensured by debugging through the JTAG.
In one embodiment, the motor driving module 40 is disposed on one side of the circuit board, and the control module 10, the power management module 20, the signal acquisition module 30 and the communication module 50 are disposed on the opposite side of the circuit board; the working voltage of the motor driving module 40 is greater than the working voltages of the control module 10, the power management module 20, the signal acquisition module 30 and the communication module 40.
In one embodiment, the overall structure of the vehicle steering control circuit board is divided into two parts, namely a high voltage area and a low voltage area. The operating voltage of the motor driving module 40 is 24V, the operating current of the motor driving module 40 reaches several tens of amperes, and the power of the motor driving module 40 is high, so the motor driving module 40 is disposed in a high voltage region of the circuit board. While other modules, such as the control module 10, the power management module 20, the signal acquisition module 30 and the communication module 50, are modules having a low operating voltage, a low operating voltage and a low current, and thus are disposed in a low voltage region of the circuit board.
Specifically, in the motor driving module, the motor driving chip is divided into a high-voltage side and a low-voltage side, the motor driving chip firstly needs to convert a control signal input by the low-voltage side control module into a driving signal suitable for driving the three-phase bridge circuit, then controls a power device on the high-voltage side, and outputs three phase voltages by controlling the on and off of the three groups of IGBTs so as to control the rotation of the motor.
The circuit board is divided into a high-voltage area and a low-voltage area, so that the high-voltage module is prevented from influencing the work of the low-voltage module, and wiring and power supply laying on the circuit board are facilitated.
The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features of the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above-mentioned embodiments only express several embodiments of the present application, and the description thereof is more specific and detailed, but not construed as limiting the claims. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the concept of the present application, which falls within the scope of protection of the present application. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (10)
1. A vehicular steering control circuit board, characterized by comprising: the device comprises a control module, a power management module, a signal acquisition module, a motor driving module and a communication module; the control module is connected with the power management module, the signal acquisition module, the motor driving module and the communication module; the power management module is connected with the signal acquisition module, the motor driving module and the communication module and supplies power to the control module, the signal acquisition module, the motor driving module and the communication module; the communication module carries out information interaction with the whole vehicle; the signal acquisition module outputs the acquired signal to the control module;
the control module is of a main and auxiliary double-data signal processing chip structure.
2. The vehicular steering control circuit board according to claim 1, wherein the power management module includes: the power supply protection circuit comprises a power supply management chip, an overvoltage detection circuit, an undervoltage detection circuit, an overcurrent detection circuit, an overtemperature detection circuit and a switch protection device; the power management chip is connected with the control module, the signal acquisition module, the motor driving module and the communication module, and the overvoltage detection circuit, the undervoltage detection circuit, the overcurrent detection circuit and the overtemperature detection circuit are connected with the control module; the overvoltage detection circuit, the undervoltage detection circuit, the overcurrent detection circuit and the overtemperature detection circuit are all connected with the power management chip to detect the working state of the power management chip in real time; the switch protection device is connected with the power management chip and is externally connected with a vehicle-mounted power supply.
3. The vehicular steering control circuit board according to claim 2, wherein the signal acquisition module includes: the device comprises a steering wheel corner signal acquisition unit, a torque signal acquisition unit and a motor position signal acquisition unit; the steering wheel corner signal acquisition unit, the torque signal acquisition unit and the motor position signal acquisition unit are connected with the power management chip; the steering wheel corner signal acquisition unit, the torque signal acquisition unit and the motor position signal acquisition unit are all connected with the control module; the signal acquisition module processes the acquired signals and outputs the processed signals to the control module.
4. The vehicular steering control circuit board according to claim 3, wherein the motor drive module includes: the device comprises a motor driving chip, a three-phase bridge circuit, a temperature sampling circuit, a current sampling circuit and a relay; the motor driving chip, the three-phase bridge circuit, the temperature sampling circuit and the current sampling circuit are all connected with the power management chip; the motor driving chip is connected with the three-phase bridge circuit and the control module, the three-phase bridge circuit is connected with the relay, and the relay is externally connected with a motor; the temperature sampling circuit is connected with the motor driving chip and the three-phase bridge circuit; the current sampling circuit is connected with the motor driving chip and the three-phase bridge circuit.
5. The vehicular steering control circuit board according to claim 4, wherein the motor driver chip receives the PWM signal output by the control module, performs power amplification and outputs the PWM signal to the three-phase bridge circuit, and the motor driver chip outputs the collected information of the temperature sampling circuit and the current sampling circuit to the control module.
6. The vehicular steering control circuit board according to claim 4, wherein the three-phase bridge circuit is formed by a plurality of insulated gate bipolar transistors, and the maximum operating current of the three-phase bridge circuit is 50A.
7. The vehicular steering control circuit board according to claim 4, wherein the communication module includes a CAN communication unit, the CAN communication unit is connected to the power management chip, and the CAN communication unit is connected to the control module; the communication module is used for calibrating inductance parameters, collecting the rotating speed of the motor and compensating speed signals.
8. The vehicular steering control circuit board according to claim 7, wherein the control module comprises a first digital signal processing chip and a second digital signal processing chip, and the first digital signal processing chip and the second digital signal processing chip are connected through a serial peripheral interface bus; the first digital signal processing chip is a main digital signal processing chip, and the second digital signal processing chip is an auxiliary digital signal processing chip;
the first digital signal processing chip is connected with the power management chip, the overvoltage detection circuit, the undervoltage detection circuit, the overcurrent detection circuit, the overtemperature detection circuit, the steering wheel corner signal acquisition unit, the torque signal acquisition unit, the motor position signal acquisition unit, the motor driving chip, the relay and the CAN communication unit;
the second digital signal processing chip is connected with the power management chip, the overvoltage detection circuit, the undervoltage detection circuit, the overcurrent detection circuit, the overtemperature detection circuit, the steering wheel corner signal acquisition unit, the torque signal acquisition unit, the motor position signal acquisition unit, the motor driving chip, the relay and the CAN communication unit.
9. The vehicular steering control circuit board according to claim 8, wherein the first digital signal processing chip and the second digital signal processing chip each receive and process information of the power management chip, the overvoltage detection circuit, the undervoltage detection circuit, the overcurrent detection circuit, the overtemperature detection circuit, the steering wheel angle signal acquisition unit, the torque signal acquisition unit, the motor position signal acquisition unit, and the CAN communication unit, and the first digital signal processing chip and the second digital signal processing chip perform information transmission and mutual check through a serial peripheral interface bus to ensure accurate information sampling; the first digital signal processing chip outputs state information to the second digital signal processing chip, and the second digital signal processing chip detects the working state of the first digital signal processing chip in real time; when the first digital signal processing chip works normally, the first digital signal processing chip outputs a PWM signal to the motor driving chip, and when the first digital signal processing chip works normally, the second digital signal processing chip does not output the PWM signal to the motor driving chip; when the second digital signal processing chip detects that the first digital signal processing chip is abnormal, the second digital signal processing chip outputs a PWM signal to the motor driving chip or controls the relay to cut off a circuit.
10. The vehicular steering control circuit board according to claim 1, wherein the motor driving module is disposed on one side of the circuit board, and the control module, the power management module, the signal acquisition module and the communication module are disposed on the opposite side of the circuit board; the working voltage of the motor driving module is greater than the working voltages of the control module, the power management module, the signal acquisition module and the communication module.
Priority Applications (1)
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| CN202110468277.7A CN113085998A (en) | 2021-04-28 | 2021-04-28 | Steering control circuit board for vehicle |
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| CN202110468277.7A CN113085998A (en) | 2021-04-28 | 2021-04-28 | Steering control circuit board for vehicle |
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| CN202110468277.7A Pending CN113085998A (en) | 2021-04-28 | 2021-04-28 | Steering control circuit board for vehicle |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114228825A (en) * | 2021-12-27 | 2022-03-25 | 天津德科智控股份有限公司 | Electric power steering control system and method |
| CN114337462A (en) * | 2022-01-07 | 2022-04-12 | 深圳市大族机器人有限公司 | Servo drive circuit, drive method and apparatus |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6208923B1 (en) * | 1998-08-01 | 2001-03-27 | Robert Bosch Gmbh | Fault-tolerant electromechanical steer-by-wire steering actuator |
| CN201107600Y (en) * | 2007-09-17 | 2008-08-27 | 南京天擎汽车电子有限公司 | Electronic control type electrodynamic power-assisted steering controller |
| CN201901171U (en) * | 2010-09-28 | 2011-07-20 | 上海航天汽车机电股份有限公司 | Electric power-assisted steering control system adopting dual-microcomputer to jointly control relay |
| CN102582677A (en) * | 2011-01-06 | 2012-07-18 | 上海联盛汽车电子有限公司 | Electric power-assisted steering system |
| JP2013243337A (en) * | 2012-04-25 | 2013-12-05 | Jtekt Corp | Controller and motor unit including the same |
| CN110654455A (en) * | 2019-10-09 | 2020-01-07 | 重庆鹤姿汽车科技有限公司 | Control working circuit of electric power steering gear |
| CN112644583A (en) * | 2019-10-11 | 2021-04-13 | 博世华域转向系统有限公司 | Controller circuit of electric power steering system and sampling and control method |
-
2021
- 2021-04-28 CN CN202110468277.7A patent/CN113085998A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6208923B1 (en) * | 1998-08-01 | 2001-03-27 | Robert Bosch Gmbh | Fault-tolerant electromechanical steer-by-wire steering actuator |
| CN201107600Y (en) * | 2007-09-17 | 2008-08-27 | 南京天擎汽车电子有限公司 | Electronic control type electrodynamic power-assisted steering controller |
| CN201901171U (en) * | 2010-09-28 | 2011-07-20 | 上海航天汽车机电股份有限公司 | Electric power-assisted steering control system adopting dual-microcomputer to jointly control relay |
| CN102582677A (en) * | 2011-01-06 | 2012-07-18 | 上海联盛汽车电子有限公司 | Electric power-assisted steering system |
| JP2013243337A (en) * | 2012-04-25 | 2013-12-05 | Jtekt Corp | Controller and motor unit including the same |
| CN110654455A (en) * | 2019-10-09 | 2020-01-07 | 重庆鹤姿汽车科技有限公司 | Control working circuit of electric power steering gear |
| CN112644583A (en) * | 2019-10-11 | 2021-04-13 | 博世华域转向系统有限公司 | Controller circuit of electric power steering system and sampling and control method |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114228825A (en) * | 2021-12-27 | 2022-03-25 | 天津德科智控股份有限公司 | Electric power steering control system and method |
| CN114337462A (en) * | 2022-01-07 | 2022-04-12 | 深圳市大族机器人有限公司 | Servo drive circuit, drive method and apparatus |
| CN114337462B (en) * | 2022-01-07 | 2023-08-29 | 深圳市大族机器人有限公司 | Servo driving circuit, driving method and device |
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