CN208789428U - A kind of suspension control system based on tire vibration input - Google Patents
A kind of suspension control system based on tire vibration input Download PDFInfo
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- CN208789428U CN208789428U CN201821451235.2U CN201821451235U CN208789428U CN 208789428 U CN208789428 U CN 208789428U CN 201821451235 U CN201821451235 U CN 201821451235U CN 208789428 U CN208789428 U CN 208789428U
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Abstract
The utility model discloses a kind of suspension control systems based on tire vibration input, comprising: tire pressure monitoring module and vehicle-mounted monitoring module, the tire pressure monitoring module include tire pressure monitoring integration module, and signal wireless transmitter module is connected on tire pressure monitoring integration module；The vehicle-mounted monitoring module includes the signal wireless receiving module connecting with signal wireless transmitter module output end, the output end of signal wireless receiving module is connected with vehicle-mounted MCU, the output end of vehicle-mounted MCU is connected with CAN transceiver, the output end of CAN transceiver is connected with electronic controlled suspension ECU, the output end of electronic controlled suspension ECU is connected with analog line driver, the output end of analog line driver is connected with suspension adjusting actuator, and is respectively connected with power supply on signal wireless receiving module, vehicle-mounted MCU, CAN transceiver, electronic controlled suspension ECU and analog line driver.The utility model uses the acceleration transducer in tire pressure monitoring modular to the road vibration signal of tire as input signal, and realization controls the rigidity of suspension and damping.
Description
Technical field
The utility model relates to automobile chassis electronic control more particularly to active or semi-active suspension control system systems
System, belongs to technical field of automobile electronic control.
Background technique
Currently, the control of the stiffness and damping of vehicle active suspension is the vehicle body detected by height sensor for automobile body
Acceleration or directly installation body-acceleration sensor change to change.These mode sensors are mounted on vehicle suspension
Above, it is indirect for obtaining the mode of road surface input, and cannot veritably reflect the input signal on road surface.As vehicle tire pressure is examined
Survey become automobile standard configuration, using in tie pressure detection module tire pressure signal and acceleration signal come to automobile nonspring carried mass
Acceleration obtained, obtain ground vibration input signal, control the damping and rigidity of suspension, this method saves cost, mentions
The control comfort of high automotive suspension.
Automotive suspension active control affects the comfort and control stability of automobile, and existing Suspension control can not
Road pavement is judged, the vibration feelings of vehicle body are mainly obtained using height sensor or the vibrating sensor of installation
Condition, and then the rigidity of suspension is controlled, increase the cost of automobile.It is solved for this reason, it may be necessary to design the new technical solution of one kind and give.
Utility model content
The utility model is exactly in view of the deficienciess of the prior art, provide a kind of for automobile chassis electronics Suspension control
System, using the acceleration transducer in tire pressure monitoring modular to the road vibration signal of tire as input signal,
Integrating other sensors again includes steering wheel angle signal, speed signal come to suspension rigidity and damping control, meet
Actual operation requirements.
To solve the above problems, technical solution adopted in the utility model is as follows:
A kind of suspension control system based on tire vibration input, comprising: tire pressure monitoring module and vehicle-mounted monitoring module, institute
Stating tire pressure monitoring module includes tire pressure monitoring integration module, and signal wireless transmission mould is connected on the tire pressure monitoring integration module
Block；The vehicle-mounted monitoring module includes the signal wireless receiving module connecting with signal wireless transmitter module output end, the letter
The output end of number wireless receiving module is connected with vehicle-mounted MCU, and the output end of the vehicle-mounted MCU is connected with CAN transceiver, described
The output end of CAN transceiver is connected with electronic controlled suspension ECU, and the output end of the electronic controlled suspension ECU is connected with analog line driver, institute
The output end for stating analog line driver is connected with suspension adjusting actuator, and the signal wireless receiving module, vehicle-mounted MCU, CAN are received
Power supply is respectively connected on hair device, electronic controlled suspension ECU and analog line driver；
The suspension adjusting actuator includes stiffness tuning actuator, height adjustment actuator, damping adjusting actuator；
The tire pressure monitoring integration module includes tire MCU, vibrating sensor and tyre pressure sensor, the vibrating sensor
It is connected on tire MCU with the output end of tyre pressure sensor, and the output end of the tire MCU and signal wireless transmitter module connect
It connects, is connected with button cell on the tire pressure monitoring integration module and the signal wireless transmitter module.
As an improvement of the above technical solution, be also connected on the electronic controlled suspension ECU vehicle speed sensor, rotation direction sensor and
Height sensor.
As an improvement of the above technical solution, the tire pressure monitoring integration module includes tire pressure monitoring integrated circuit, described
Tire pressure monitoring integrated circuit includes MCU2, U1 crystal oscillator element, P2 program burn writing terminal and radio transmitter module, the P2 journey
Sequence programming terminal and radio transmitter module are electrically connected on the left of MCU2, and the U1 crystal oscillator element is connected on the right side of MCU2.
As an improvement of the above technical solution, the MCU2 is pressure sensor, acceleration transducer and microcontroller
It is integrated.
As an improvement of the above technical solution, the receiving end of the vehicle-mounted MCU includes the vehicle-mounted micro-control unit of U2, U3 vehicle-mounted
Receiving module chip, U4 ceramic filter, U6CAN transceiver circuit, P3 electronic controlled suspension ECU circuit of output terminal and wireless receiving electricity
Road module, the vehicle-mounted receiving module chip of U3 and the U6CAN transceiver circuit are electrically connected at the vehicle-mounted microcontroller list of U2
In member, the U4 ceramic filter and wireless receiving circuit module are electrically connected on the vehicle-mounted receiving module chip of U3, described
P3 electronic controlled suspension ECU circuit of output terminal is connected on U6CAN transceiver circuit.
As an improvement of the above technical solution, the suspension control system based on tire vibration input further includes that voltage turns
Change the mold block, the voltage transformation module include both ends socket JP1 and socket JP3, the socket JP1 and the socket JP3 it
Between be connected with two conducting wires, diode D5 is connected on the conducting wire being located above, be connected in turn between two conducting wires diode D6,
Capacitor C31, capacitor C32 and capacitor C33 are connected with voltage conversion core on the conducting wire between the capacitor C32 and the capacitor C33
Piece U5, the one end voltage conversion chip U5 ground connection.
Compared with prior art, the implementation result of the utility model is as follows:
(1) this programme increases the circuit of road surface acquisition information on the basis of existing suspension control system, can be very well
Acquisition information of road surface, judge pavement grade.
(2) it realizes and reading is acquired to the acceleration signal of each tire pressure monitoring, tetra- road signal of Bing Dui carries out
Analysis obtains pavement grade situation, then the signal is sent to Suspension control ECU, and Suspension control ECU is further according to surface conditions tune
Stiffness and damping is saved, the program combines the acquisition transducing signal on road surface, avoids acceleration transducer additional needed for Suspension control,
The program acquires the acceleration signal of four tires simultaneously, acquires situation compared to single acceleration, is more advantageous to and judges road surface
Situation.
Detailed description of the invention
Fig. 1 is the suspension control system modular structure schematic diagram described in the utility model based on tire vibration input；
Fig. 2 is tie pressure detection module structural schematic diagram described in the utility model；
Fig. 3 is vehicle-mounted monitoring modular structure schematic diagram described in the utility model；
Fig. 4 is that electronic controlled suspension ECU described in the utility model refines structural schematic diagram；
Fig. 5 is the tire pressure monitoring module circuit schematic at tire end described in the utility model；
Fig. 6 is the circuit diagram of vehicle-mounted receiving end described in the utility model；
Fig. 7 is the circuit diagram of voltage transformation module described in the utility model；
Fig. 8 is tire monitor end program circuit schematic diagram described in the utility model；
Fig. 9 is vehicle-mounted monitoring end program circuit schematic diagram described in the utility model；
Figure 10 is electronic controlled suspension ECU program circuit schematic diagram described in the utility model.
Specific embodiment
Illustrate the content of the utility model below in conjunction with specific embodiments.
As shown in Figures 1 to 10, show for the suspension control system structure described in the utility model based on tire vibration input
It is intended to.
Suspension control system described in the utility model based on tire vibration input, comprising: tire pressure monitoring module and vehicle
Monitoring module is carried, the tire pressure monitoring module includes tire pressure monitoring integration module, is connected on the tire pressure monitoring integration module
Signal wireless transmitter module；The vehicle-mounted monitoring module includes that the signal connecting with signal wireless transmitter module output end wirelessly connects
Module is received, the output end of the signal wireless receiving module is connected with vehicle-mounted MCU, and the output end of the vehicle-mounted MCU is connected with CAN
Transceiver, the output end of the CAN transceiver are connected with electronic controlled suspension ECU, and the output end connection of the electronic controlled suspension ECU is active
Rate driver, the output end of the analog line driver are connected with suspension adjusting actuator, and the signal wireless receiving module, vehicle
It carries and is respectively connected with power supply on MCU, CAN transceiver, electronic controlled suspension ECU and analog line driver；The suspension adjusting actuator
Including stiffness tuning actuator, height adjustment actuator, damping adjusting actuator；The tire pressure monitoring integration module includes tire
The output end of MCU, vibrating sensor and tyre pressure sensor, the vibrating sensor and tyre pressure sensor is connected on tire MCU,
And the output end of the tire MCU is connect with signal wireless transmitter module, the tire pressure monitoring integration module is wirelessly sent out with signal
It penetrates and is connected with button cell in module.In addition, it is high to be also connected with vehicle speed sensor, rotation direction sensor and vehicle body on electronic controlled suspension ECU
Spend sensor.Wherein, square 1,2,3,4 is respectively the tire pressure monitoring integration module of tire all around, and square 5,6,7,8 is distinguished
For the corresponding signal wireless transmitter module of each tire, square 9 is vehicle-mounted end wireless receiving module, and square 10 is vehicle-mounted MCU, side
Block 11 is CAN transceiver, and square 12 is electronic controlled suspension ECU, and square 13 is analog line driver, and square 14 is that suspension adjusting executes
Device.
Tthe utility model system is divided into tie pressure detection module, vehicle-mounted monitoring module two parts, and tire pressure monitoring module is to utilize
It is installed on pressure sensor the acquisition pressure, temperature signal of inside tires, acceleration signal and button cell voltage signal pass through
Then the processing of MCU is launched by transmitting antenna to the receiving antenna of vehicle-mounted monitoring module；Vehicle-mounted monitoring module is then benefit
With receiving antenna, the data information of tire pressure, temperature detecting module transmitting processing is received, is analyzed by the processing of MCU, it will
Tire pressure, temperature information reflection on a display screen, and are alarmed in the case where exception occurs in tire using buzzer；Vehicle
It carries the reception, processing that the function that tire pressure monitoring module is mainly realized includes tire pressure and driver is shown and is reported
It is alert.Wherein, it is desirable that module can the data that send over of real-time reception tire pressure temperature detecting module, to being sent after information decoding
To receiving end, and the MCU of receiving end analyzes data, is handled, and pressure, temperature information are shown in liquid crystal display
On, and so that buzzer is alarmed in real time driver when module monitors to tire pressure, tire temperature are abnormal；Module includes connecing
It collects mail and ceases, handle data, these parts of display alarm.
It is further improved ground, as shown in Figure 5: the tire pressure monitoring integration module includes tire pressure monitoring integrated circuit, described
Tire pressure monitoring integrated circuit includes MCU2, U1 crystal oscillator element, P2 program burn writing terminal and radio transmitter module, the P2 journey
Sequence programming terminal and radio transmitter module are electrically connected on the left of MCU2, and the U1 crystal oscillator element is connected on the right side of MCU2.
Wherein, the chip model that MCU2 is used is SP370, is integrated with pressure sensor, acceleration transducer and microcontroller, and U1 is
The crystal oscillator element of controller, frequency 4M, P2 are program burn writing terminal.Wherein, the electric elements in radio transmitter module
It include: that R represents resistance, C represents capacitor, and L represents inductance, and D1 represents light emitting diode, Y representative antennas, and VCC represents power supply, GND
Represent ground connection.
It is further improved ground, as shown in Figure 6: the receiving end of the vehicle-mounted MCU includes vehicle-mounted micro-control unit (U2), vehicle-mounted
Receiving module chip (U3), ceramic filter (U4), CAN transceiver circuit (U6), electronic controlled suspension ECU circuit of output terminal (P3) and
Wireless receiving circuit module, the vehicle-mounted receiving module chip and the CAN transceiver circuit are electrically connected at vehicle-mounted micro-control
On unit processed, the U4 ceramic filter and wireless receiving circuit module are electrically connected on the vehicle-mounted receiving module chip of U3,
The P3 electronic controlled suspension ECU circuit of output terminal is connected on U6CAN transceiver circuit.Wherein, U2 is model STM32F103R8
Vehicle-mounted micro-control unit, be connected to form minimum system unit with crystal oscillating circuit, reset circuit, U3 is vehicle-mounted receiving module chip
TDA5235, U4 are the ceramic filter for receiving circuit end, and U6 is CAN transceiver circuit, and the model of U6 is MCP2551, and P3 is defeated
Out to the end suspension ECU.Wherein, the electric elements in the wireless receiving circuit module include: that R represents resistance, and C represents capacitor, L
Inductance is represented, D1 represents light emitting diode, Y representative antennas, and VCC represents power supply, and GND represents ground connection, and OS represents crystal oscillator.
Specifically, as shown in Figure 7: the suspension control system based on tire vibration input further includes voltage modulus of conversion
Block, the voltage transformation module include the socket JP1 and socket JP3 at both ends, are connected between the socket JP1 and the socket JP3
Two conducting wires are connected to, diode D5 is connected on the conducting wire being located above, is connected with diode D6, capacitor between two conducting wires in turn
C31, capacitor C32 and capacitor C33 are connected with voltage conversion chip on the conducting wire between the capacitor C32 and the capacitor C33
U5, the one end voltage conversion chip U5 ground connection.Since the voltage that battery provides is 5V, and it is signal acquisition processing circuit, micro-
Supply voltage needed for controller unit and serial communication modular is 3.3V, is turned so completing voltage using voltage transformation module
Function is changed, supply voltage conversion chip U5 uses ASM1117-3.3.
In addition, tire monitor end as shown in Figure 8 program circuit: then whether progress program initialization first judges tire
There is vibration acceleration signal, does not make system suspend mode 5s, mainly consider from Energy Angle, extend the working life of battery；Such as
Fruit has acceleration signal, represents automobile and has travelled, have road surface input information, then by respectively read sensor pressure and
Acceleration information sends data to vehicle-mounted receiving end by antenna.
Vehicle-mounted monitoring end as shown in Figure 9 program circuit: firstly, initializing to vehicle-mounted MCU, input letter has been detected whether
Number, if so, reading pressure and acceleration signal, and which affiliated tire is judged to received signal, then passes through CAN bus
Received data are sent to suspension ECU.
Electronic controlled suspension ECU program circuit as shown in Figure 10: firstly, suspension ECU is initialized, acquisition current vehicle speed,
It turns to, bodywork height signal, waits the acceleration signal of tire, adjust suspension rate according to these signals and damp to target value,
Output order is to executing agency, if the unreachable position of suspension fork mechanism, continues to adjust, otherwise control adjustment terminates.
In summary: the utility model uses and vertical direction is arranged in tire aiming at the problem that normal acceleration of road surface
Vibrating sensor acquires road surface signal, sends information to main control module by wireless module, then main control module passes through again
CAN bus is communicated with Suspension control ECU, information of road surface is fed back to Suspension control ECU, ECU is according to information of road surface, analysis
Road conditions and pavement grade control the rigidity and damping of suspension system, improve the drive safety and riding comfort of automobile.
The utility model signal collected all can serve as the signal of electronic tachometer, and structure is simple, reliable performance.
The above content is in conjunction with specific embodiments to detailed description made by the utility model, and it cannot be said that this is practical new
Type specific implementation is only limitted to these explanations.For those skilled in the art of the present invention, this is not being departed from
Under the premise of utility model is conceived, a number of simple deductions or replacements can also be made, all shall be regarded as belonging to the utility model guarantor
The range of shield.
Claims (6)
1. a kind of suspension control system based on tire vibration input, it is characterised in that: include: tire pressure monitoring module and vehicle-mounted prison
Module is controlled, the tire pressure monitoring module includes tire pressure monitoring integration module, is connected with signal on the tire pressure monitoring integration module
Wireless transmitter module；The vehicle-mounted monitoring module includes the signal wireless receiving mould connecting with signal wireless transmitter module output end
Block, the output end of the signal wireless receiving module are connected with vehicle-mounted MCU, and the output end of the vehicle-mounted MCU is connected with CAN transmitting-receiving
Device, the output end of the CAN transceiver are connected with electronic controlled suspension ECU, and the output end of the electronic controlled suspension ECU is connected with power drive
Dynamic device, the output end of the analog line driver are connected with suspension adjusting actuator, and the signal wireless receiving module, vehicle-mounted
Power supply is respectively connected on MCU, CAN transceiver, electronic controlled suspension ECU and analog line driver；
The suspension adjusting actuator includes stiffness tuning actuator, height adjustment actuator, damping adjusting actuator；
The tire pressure monitoring integration module includes tire MCU, vibrating sensor and tyre pressure sensor, the vibrating sensor and tire
The output end of pressure sensor is connected on tire MCU, and the output end of the tire MCU is connect with signal wireless transmitter module,
Button cell is connected on the tire pressure monitoring integration module and the signal wireless transmitter module.
2. the suspension control system according to claim 1 based on tire vibration input, it is characterised in that: described automatically controlled outstanding
Vehicle speed sensor, rotation direction sensor and height sensor are also connected on frame ECU.
3. the suspension control system according to claim 1 based on tire vibration input, it is characterised in that: the tire pressure prison
Surveying integration module includes tire pressure monitoring integrated circuit, and the tire pressure monitoring integrated circuit includes MCU2, U1 crystal oscillator element, P2 program
Programming terminal and radio transmitter module, the P2 program burn writing terminal and radio transmitter module are electrically connected at MCU2
Left side, the U1 crystal oscillator element are connected on the right side of MCU2.
4. the suspension control system according to claim 3 based on tire vibration input, it is characterised in that: the MCU2 is
Pressure sensor, acceleration transducer and microcontroller it is integrated.
5. the suspension control system according to claim 1 based on tire vibration input, it is characterised in that: described vehicle-mounted
The receiving end of MCU includes the vehicle-mounted micro-control unit of U2, the vehicle-mounted receiving module chip of U3, U4 ceramic filter, U6CAN transceiver electricity
Road, P3 electronic controlled suspension ECU circuit of output terminal and wireless receiving circuit module, the vehicle-mounted receiving module chip of U3 with it is described
U6CAN transceiver circuit is electrically connected on the vehicle-mounted micro-control unit of U2, the U4 ceramic filter and wireless receiving circuit
Module is electrically connected on the vehicle-mounted receiving module chip of U3, and the P3 electronic controlled suspension ECU circuit of output terminal is connected to U6CAN receipts
It sends out on device circuit.
6. the suspension control system according to claim 1 based on tire vibration input, it is characterised in that: described based on wheel
The suspension control system of tire vibration input further includes voltage transformation module, and the voltage transformation module includes the socket JP1 at both ends
With socket JP3, it is connected with two conducting wires between the socket JP1 and the socket JP3, is connected with two on the conducting wire being located above
Pole pipe D5 is connected with diode D6, capacitor C31, capacitor C32 and capacitor C33, the capacitor C32 and institute in turn between two conducting wires
It states and is connected with voltage conversion chip U5 on the conducting wire between capacitor C33, the one end voltage conversion chip U5 ground connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821451235.2U CN208789428U (en) | 2018-09-05 | 2018-09-05 | A kind of suspension control system based on tire vibration input |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821451235.2U CN208789428U (en) | 2018-09-05 | 2018-09-05 | A kind of suspension control system based on tire vibration input |
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| Publication Number | Publication Date |
|---|---|
| CN208789428U true CN208789428U (en) | 2019-04-26 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821451235.2U Active CN208789428U (en) | 2018-09-05 | 2018-09-05 | A kind of suspension control system based on tire vibration input |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208789428U (en) |
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2018
- 2018-09-05 CN CN201821451235.2U patent/CN208789428U/en active Active
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Assignee: Nanjing Taiyichuang Electronic Control Technology Co., Ltd. Assignor: Nanjing Forestry University Contract record no.: X2019320000129 Denomination of utility model: A suspension control system based on tire vibration input Granted publication date: 20190426 License type: Common License Record date: 20191018 Assignee: Nanjing Qizhi Control Technology Co., Ltd. Assignor: Nanjing Forestry University Contract record no.: X2019320000130 Denomination of utility model: A suspension control system based on tire vibration input Granted publication date: 20190426 License type: Common License Record date: 20191018 |