CN207798877U - A kind of acceleration detecting and automobile - Google Patents
A kind of acceleration detecting and automobile Download PDFInfo
- Publication number
- CN207798877U CN207798877U CN201721364946.1U CN201721364946U CN207798877U CN 207798877 U CN207798877 U CN 207798877U CN 201721364946 U CN201721364946 U CN 201721364946U CN 207798877 U CN207798877 U CN 207798877U
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- acceleration
- control unit
- micro
- automobile
- acceleration transducer
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Abstract
The utility model discloses a kind of acceleration detecting and automobile, which is applied to automobile, and the acceleration detecting includes：Acceleration transducer；The micro-control unit MCU being connect with the acceleration transducer；Wherein, the acceleration transducer is integrated in the micro-control unit MCU on same circuit board.The acceleration transducer of the utility model is integrated in micro-control unit on same circuit board, the acceleration signal of automobile during exercise is measured using acceleration transducer, using micro-control unit as core controller, cost is relatively low, and reduce power consumption, acceleration signal stability is higher with sensitivity in test, and the control accuracy of TCU and VCU and response speed is made to improve.
Description
Technical field
The utility model is related to automotive field more particularly to a kind of acceleration detectings and automobile.
Background technology
In automatic gear-box control unit TCU or entire car controller VCU control strategies, it is often necessary to which vehicle accelerates in real time
Parameter is spent, such as TCU utilizes the difference of actual measurement vehicle real time acceleration and theoretical prediction vehicle acceleration when road ramp identifies
Value, as identification of road grade value, for VCU when carrying out Motor torque control, vehicle real time acceleration is one of target component.
TCU or VCU usually obtains instantaneous acceleration, the load of master chip by the change rate of car speed or applied acceleration sensor
Rate is larger, may influence the speed of service of TCU or VCU.
Utility model content
In order to solve the above-mentioned technical problem, the utility model provides a kind of acceleration detecting and automobile, solve TCU or
VCU, which obtains vehicle instantaneous acceleration, causes load factor larger, the problem of to influence control accuracy and response speed.
According to the one side of the utility model, a kind of acceleration detecting is provided, is applied to automobile, the acceleration
Spending detection device includes：
Acceleration transducer；
The micro-control unit MCU being connect with the acceleration transducer；
Wherein, the acceleration transducer is integrated in the micro-control unit MCU on same circuit board.
Optionally, the acceleration transducer passes through serial peripheral equipment interface SPI communications protocol with the micro-control unit MCU
Connection.
Optionally, the SPI communications protocol includes 4 connecting lines, is connected respectively the piece of the acceleration transducer
Select pin CS, clock pins SCLK, serial date transfer pin DI and serial data output pin DO and the micro-control unit
Chip select pin CS_A, clock pins SCLK1, serial data output pin MISO1 and the serial date transfer pin MOSI1 of MCU.
Optionally, the signal output pin X of the acceleration transducerOUTAnd YOUTRespectively with the micro-control unit MCU
Analog-digital converter ADC connections.
Optionally, automatic gear-box control unit TCUs or full-vehicle control of the micro-control unit MCU as the automobile
Device VCU.
According to the other side of the utility model, a kind of automobile, including above-mentioned acceleration detecting are additionally provided.
Optionally, the TCU or VCU of the acceleration transducer and the automobile become one.
The advantageous effect of the embodiments of the present invention is：
Acceleration transducer and micro-control unit are integrated on same circuit board by the utility model, using acceleration sensing
Device measures the acceleration signal of automobile during exercise, and using micro-control unit as core controller, cost is relatively low, and reduces work(
Consumption, acceleration signal stability is higher with sensitivity in test, and the control accuracy of TCU and VCU and response speed is made to improve.
Description of the drawings
Fig. 1 shows the structure diagrams of the acceleration detecting of the utility model；
Fig. 2 indicates the schematic diagram of the acceleration detecting of the utility model.
Wherein in figure：1, acceleration transducer, 2, micro-control unit MCU.
Specific implementation mode
The exemplary embodiment of the utility model is more fully described below with reference to accompanying drawings.Although showing this in attached drawing
The exemplary embodiment of utility model, it being understood, however, that may be realized in various forms the utility model without should be by here
The embodiment of elaboration is limited.It is to be able to be best understood from the utility model, and energy on the contrary, providing these embodiments
It is enough that the scope of the utility model is completely communicated to those skilled in the art.
As shown in Figure 1, the embodiments of the present invention provide a kind of acceleration detecting, it is applied to automobile, it is described
Acceleration detecting includes：Acceleration transducer 1；The micro-control unit MCU2 being connect with the acceleration transducer 1；Its
In, the acceleration transducer 1 and micro-control unit MCU2 is integrated on same circuit board.
In the embodiment, the acceleration in the signal acquisition module collection vehicle motion process of the acceleration transducer 1
Voltage signal, which is analog signal, and is sent to MCU, MCU conducts using the analog signal as output signal
After receiving the interrupt requests that acceleration transducer is sent, acceleration sensing is obtained after timer interruption processing for core controller
Device 1 export analog signal, the analog signal is sampled, analog-to-digital conversion and filtering after obtain acceleration number letter
Number, and the digital signal is normalized, obtains acceleration information corresponding with the acceleration signal, and by institute
The characteristic storage of acceleration is stated, wherein MCU can realize the control function of TCU or VCU as the TCU or VCU of automobile.
The acceleration transducer 1 and MCU is integrated on same circuit board, is reduced production cost, and reduce power consumption, is surveyed
Acceleration signal stability is higher with sensitivity in examination, and the control accuracy of TCU or VCU and response speed is made to improve
In above-described embodiment of the utility model, the acceleration transducer 1 and micro-control unit MCU2 passes through string
Row Peripheral Interface SPI communications protocol connects.
In the embodiment, SPI is a kind of high speed, synchronous communication bus, and four are only taken up on the pin of chip
Line has saved the pin of chip, and this communications protocol is integrated on the circuit board of acceleration detecting, is saved in layout empty
Between, it provides conveniently.
Specifically, as shown in Fig. 2, the SPI communications protocol includes 4 connecting lines, it is connected respectively the acceleration
Chip select pin CS, clock pins SCLK, serial date transfer pin DI and the serial data output pin DO of sensor 1 with it is described
The chip select pin CS_A of micro-control unit MCU2, clock pins SCLK1, serial data output pin MISO1 and serial data are defeated
Enter pin MOSI1.
In the embodiment, SPI communications protocol is worked with master-slave mode, and the MCU is as main equipment, acceleration transducer 1
As from equipment, MCU generates clock signal, is exported to the SCLK pins of acceleration transducer 1, MISO1 pins by SCLK1 pins
It is based on clock signal with DI pins, MOSI1 pins and DO pins and realizes serial data transmission.
In above-described embodiment of the utility model, the signal output pin X of the acceleration transducer 1OUTAnd YOUTRespectively
It is connect with the analog-digital converter ADC of the micro-control unit MCU2.
In the embodiment, the MCU realizes the acceleration signal that acceleration transducer 1 obtains by analog-digital converter ADC
Analog-to-digital conversion, the collected data of analog-digital converter ADC can react the situation of change of acceleration.
In above-described embodiment of the utility model, automatic gear-box controls of the micro-control unit MCU2 as the automobile
Unit TCU or entire car controller VCU processed.
In the embodiment, core controllers of the MCU as acceleration detecting can pass through acceleration transducer
Detection data is inputted MCU by the angle signal of 1 vehicle detected when driving, and MCU's controls programe non-interrupted reading
The data of input obtain suitable pulse width modulation (PWM) control signal, MCU can be as automobile in conjunction with sentence is judged
TCU or VCU realizes the control function of TCU or VCU.The program is that TCU or VCU obtains vehicle according to automobile instantaneous acceleration
Road condition is run, and preferably road conditions identification provides possibility.
The embodiments of the present invention additionally provide a kind of automobile, including above-mentioned acceleration detecting.
In above-described embodiment of the utility model, the acceleration transducer 1 and the TCU or VCU of the automobile are integrated into
One.
In the embodiment, TCU or VCU due to the MCU as automobile realize the control function of TCU or VCU, described
Acceleration transducer 1 and the TCU or VCU of the automobile become one, i.e., become one with MCU, can be TCU or VCU
Accurate automobile instantaneous acceleration is provided, load factor is higher when avoiding TCU or VCU because of work, influences the speed of service, to shadow
Ring the control accuracy and response speed of controller.
Acceleration transducer and micro-control unit are integrated on same circuit board, adopt by the embodiment of the utility model
Measure automobile acceleration signal during exercise with acceleration transducer, using micro-control unit as core controller, cost compared with
It is low, and power consumption is reduced, acceleration signal stability is higher with sensitivity in test, makes TCU, VCU control accuracy and response speed
It improves.
Above-described is preferred embodiments of the present invention, it should be pointed out that for the ordinary person of the art
For, it can also make several improvements and retouch under the premise of not departing from principle described in the utility model, these are improved and profit
Decorations are also within the protection scope of the present utility model.
Claims (6)
1. a kind of acceleration detecting, it is applied to automobile, which is characterized in that the acceleration detecting includes：
Acceleration transducer (1)；
The micro-control unit MCU (2) being connect with the acceleration transducer (1)；
Wherein, the acceleration transducer (1) is integrated in the micro-control unit MCU (2) on same circuit board, the micro-control
Automatic gear-box control unit TCU or entire car controller VCU of the unit MCU (2) processed as the automobile.
2. acceleration detecting according to claim 1, which is characterized in that the acceleration transducer (1) with it is described
Micro-control unit MCU (2) is connected by serial peripheral equipment interface SPI communications protocol.
3. acceleration detecting according to claim 2, which is characterized in that the SPI communications protocol includes 4 connections
Line is connected respectively the chip select pin CS, clock pins SCLK, serial date transfer pin of the acceleration transducer (1)
It is the chip select pin CS_A of DI and serial data output pin DO and the micro-control unit MCU (2), clock pins SCLK1, serial
Data output pins MISO1 and serial date transfer pin MOSI1.
4. acceleration detecting according to claim 1, which is characterized in that the signal of the acceleration transducer (1)
Output pin XOUTAnd YOUTIt is connect respectively with the analog-digital converter ADC of the micro-control unit MCU (2).
5. a kind of automobile, which is characterized in that including Claims 1 to 4 any one of them acceleration detecting.
6. automobile according to claim 5, which is characterized in that the TCU of the acceleration transducer (1) and the automobile or
VCU becomes one.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721364946.1U CN207798877U (en) | 2017-10-23 | 2017-10-23 | A kind of acceleration detecting and automobile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721364946.1U CN207798877U (en) | 2017-10-23 | 2017-10-23 | A kind of acceleration detecting and automobile |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207798877U true CN207798877U (en) | 2018-08-31 |
Family
ID=63274053
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721364946.1U Active CN207798877U (en) | 2017-10-23 | 2017-10-23 | A kind of acceleration detecting and automobile |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207798877U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114167081A (en) * | 2021-11-24 | 2022-03-11 | 浙江科丰传感器股份有限公司 | Acceleration sensor based on MCU |
-
2017
- 2017-10-23 CN CN201721364946.1U patent/CN207798877U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114167081A (en) * | 2021-11-24 | 2022-03-11 | 浙江科丰传感器股份有限公司 | Acceleration sensor based on MCU |
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