CN112067037A - Formula car data acquisition and information feedback system based on C125 - Google Patents
Formula car data acquisition and information feedback system based on C125 Download PDFInfo
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- CN112067037A CN112067037A CN201910495729.3A CN201910495729A CN112067037A CN 112067037 A CN112067037 A CN 112067037A CN 201910495729 A CN201910495729 A CN 201910495729A CN 112067037 A CN112067037 A CN 112067037A
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- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
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Abstract
The invention provides a C125-based data acquisition and information feedback system for an equation racing car, which relates to the technical field of data acquisition and racing car adjustment and calibration, and comprises a data acquisition system, a data relay processing unit, a data feedback control system and a wireless remote sensing system, wherein the data acquisition system acquires data of a chassis and an engine of the racing car through a multi-path high-precision sensor, transmits the acquired data to the data relay processing unit through a whole car wiring harness, preprocesses the received data by the data relay processing unit, transmits the preprocessed data to the data feedback control system, and finally transmits the data of the data feedback control system to a computer interface by utilizing the independently researched and developed wireless remote sensing system.
Description
Technical Field
The invention relates to the technical field of data acquisition and racing car adjustment and correction, in particular to a C125-based data acquisition and information feedback system.
Background
The FSAE was created by the international society of automotive engineering in 1978, and a small formula-like racing car was collected and designed by all university student design teams, and the racing car is required to have excellent performance in terms of handling, acceleration, braking, etc., and to be stable and durable enough. In the tuning and training of the formula car and the car driver, various data of the car are required to provide data support for tuning and training of the whole car and the car driver, so that a set of stable and reliable special data acquisition system for the formula car is developed, and the system is very important for improving the performance of the formula car and improving the operation level of the car driver.
At present, chassis adjustment of domestic racing cars mostly depends on subjective feelings of racing car owners, and objectivity and accuracy are lacked, so that a set of special economic, efficient and accurate data acquisition system is designed and developed for the swallow-flight racing car of the swallow-flight fleet of the Yanshan university, and the dynamic performance of the racing cars is remarkably improved through systematic analysis.
Compared with the method that only chassis data are collected and only chassis calibration is carried out on CN201621388602.X, the method realizes multi-way data collection of the multi-formula racing car and data calibration of the whole car.
Compared with the CN201721707370.4 which adopts a CAN data bus to transmit data, the method has the advantages that the collected data is preprocessed through the data relay processing unit and is sent to a computer through a wireless remote sensing system.
Disclosure of Invention
The invention provides a C125-based data acquisition and information feedback system for formula racing, which comprises a data acquisition system, a data relay processing unit, a data feedback control system and a wireless remote sensing system. The data acquisition system comprises: a 12-way MLX90615 tire temperature sensor, a 4-way brake disc temperature sensor, a 4-way wheel speed sensor, a 4-way suspension linear displacement sensor, a water temperature sensor, an engine oil temperature sensor, an oxygen sensor, an air flow meter, an intake pressure sensor, a crankshaft position sensor, a camshaft position sensor, a knock sensor and a brake pressure sensor.
The data acquisition system can realize the real-time acquisition of various data of the chassis and the engine. In the process of acquiring data, an acquisition method suitable for different data is adopted for determining a communication mechanism suitable for the data, determining a data recording interval and reasonably and effectively utilizing a storage space. The data relay processing unit preprocesses the acquired data and then transmits the data to the computer through the wireless remote sensing system. According to a set of collected data sorting and analyzing method, data with larger coherence are combined together for comprehensive analysis, data with small change but large influence is subjected to modeling simulation analysis, and corrected parameter information is summarized. Finally, the processed information is utilized to construct a feedback regulation system of the information, corresponding parameters on the equation race course are changed by designing automatic control or manual intervention regulation of a closed-loop program, and the performance of the equation race is exerted to the maximum extent.
The data acquisition system comprises 12 paths of MLX90615 tire temperature sensors which are divided into 4 groups, each wheel on the racing car corresponds to 3 MLX90615 tire temperature sensors, and the wheels are fixedly installed on the support.
The support is a U-shaped steel frame, a steel plate is fixedly connected to the U-shaped wall on one side, a plurality of mounting holes are formed in the steel plate, and the three tire temperature sensors can be arranged at different positions.
And the brake disc temperature sensor is fixedly arranged on the upright post.
The suspension linear displacement sensor is fixedly connected with the suspension shock absorber through a fixing bolt, and the suspension shock absorber is fixed on the frame through a shock absorber outer frame.
The wheel speed sensor is fixedly connected to the upright post through the lifting lug.
The brake pressure sensor is fixedly connected with the brake pipeline four-way valve.
The crankshaft position sensor, the camshaft position sensor and the knock sensor are fixedly connected to the engine.
The knock sensor is arranged in an engine cylinder body.
The engine oil temperature sensor is fixedly arranged on the engine oil tank.
The water temperature sensor is fixedly arranged in the cooling water path.
And the air flow meter and the air inlet pressure sensor are fixedly arranged on the pressure stabilizing cavity.
The oxygen sensor is fixedly arranged in the exhaust pipeline.
The data relay processing unit is fixedly connected to the frame through a fixing bolt.
The data feedback control system is fixedly arranged on the frame.
The wireless remote sensing system is fixedly arranged on the frame.
The technical scheme provided by the invention has the beneficial effects that: the invention provides a data acquisition and information feedback system based on C125, which surrounds a C125 instrument, autonomously develops a data relay processing unit and a wireless remote sensing system, can realize the integration of multiple paths of huge data in the data acquisition process, reduces a large number of wire harnesses, can condense disordered data, and improves the efficiency of later-stage data processing.
The wireless remote sensing system provides a mode for remotely monitoring and adjusting the formula car, so that the debugging period of the real car is shortened, and the efficiency of data transmission and adjustment of the formula car is improved. The invention provides a data acquisition-based adjustment mechanism, which is used for the whole formula car.
The method comprises the steps of collecting and integrating key data, carrying out integration analysis, finding a general rule by combining key condition parameters of the formula racing car, constructing a data-parameter correlation model, and obtaining the optimal execution parameters of the adjustment formula racing car by combining a large database formed by data accumulation, so that the adjustment is quantitative and precise.
The invention takes the vehicle adjustment as a research object, systematically researches the data acquisition and information feedback of the whole vehicle of the vehicle, particularly researches the solution of mass data acquisition of the whole vehicle, realizes the remote vehicle adjustment through a wireless technology, simplifies the adjustment process, shortens the adjustment period, can reduce the cost of the vehicle adjustment, has the actual value of engineering, and can provide a set of standard and feasible basis for the vehicle adjustment in the future.
Drawings
FIG. 1 is a conceptual block diagram of a system according to the present invention.
Fig. 2 is a schematic view of the overall structure of the present invention.
FIG. 3 and FIG. 4 are schematic diagrams of related sensors at the engine according to the present invention
FIG. 5 is a schematic diagram of the position of the oxygen sensor of the present invention.
Fig. 6 is a schematic diagram of the positions of the air flow meter and the intake pressure sensor of the present invention.
FIG. 7 is a schematic diagram of the location of an oil temperature sensor according to the present invention.
FIG. 8 is a schematic diagram of the position of the water temperature sensor according to the present invention.
FIG. 9 is a schematic view of an associated sensor at a tire of the present invention.
Fig. 10 and 11 are schematic views of positions of tire temperature sensors according to the present invention.
Fig. 12 is a schematic position diagram of the linear displacement sensor of the present invention.
FIG. 13 is a schematic diagram of a wireless remote sensing system of the present invention.
Fig. 14 is a schematic diagram of the position of the brake pressure sensor of the present invention.
Fig. 15 is a schematic diagram of the location of the data relay processing unit according to the present invention.
Reference numerals: 1-a data feedback control system, 2-a wireless remote sensing system, 3-a data relay processing unit, 4-a frame, 5-a whole vehicle wiring harness, 101-an engine, 102-a knock sensor, 103-a camshaft position sensor, 104-a crankshaft position sensor, 105-an oxygen sensor, 106-a tail gas pipeline, 107-a silencer, 108-an air inlet pressure sensor, 109-a pressure stabilizing cavity, 110-an air flow meter, 111-an engine oil temperature sensor, 112-an engine oil tank, 113-a water temperature sensor, 114-a cooling water channel, 115-a water pump, 201-a tire temperature sensor, 202-a bracket, 203-a fixing bolt, 204-a positioning hole, 205-a bracket fixing bolt, 206-a stand column, 207-a brake disc temperature sensor, a, 208-brake disc, 209-wheel speed sensor, 210-lifting lug, 211-magnetic steel, 212-suspension linear displacement sensor, 213-shock absorber, 214-shock absorber outer frame, 215-linear displacement sensor fixing bolt, 216-tire, 301-wireless remote sensing module, 302-wiring terminal, 303-transceiver antenna, 401-brake pressure sensor, 402-brake pipeline four-way valve and 403-brake pipeline.
Detailed Description
The technical scheme of the invention is further specifically described by the following embodiments and the accompanying drawings of the specification.
As shown in fig. 1, a C125-based data acquisition and information feedback system for formula racing vehicles comprises a data acquisition system, a data relay processing unit 3, a data feedback control system 1 and a wireless remote sensing system 2, wherein the data acquisition system acquires data related to racing vehicles through a plurality of high-precision sensors, the data relay processing unit 3 preprocesses the data acquired by the data acquisition system and transmits the data to the data feedback control system 1, and the data of the data feedback control system 1 is transmitted to a computer interface by using the wireless remote sensing system 2 which is independently developed.
As shown in fig. 10 and 11, the data acquisition system includes 12 MLX90615 tire temperature sensors 201, which are divided into 4 groups, and each wheel 216 of the racing car corresponds to 3 MLX90615 tire temperature sensors 201, and is fixedly mounted on the support 202. The support 202 is a U-shaped steel frame, a steel plate is fixedly connected to the U-shaped wall on one side, a plurality of mounting holes 204 are formed in the steel plate, the three tire temperature sensors 201 can be arranged at different positions to measure the tire temperatures of different positions on the same horizontal line, the collected tire temperatures are sent to the data relay processing unit 3 through the whole vehicle wiring harness 5 to be preprocessed and then sent to the data feedback control system 1, and the eccentric wear condition of the tire 216 is judged through the tire temperatures.
As shown in fig. 9, the brake disc temperature sensor 207 is fixedly installed on the upright column 206, and is configured to collect a brake disc temperature, send the collected brake disc temperature to the data relay processing unit 3 through the entire vehicle harness 5 for preprocessing, and then send the brake disc temperature to the data feedback control system 1, so as to determine whether the state of the brake system is good. The wheel speed sensor 209 is fixedly connected to the upright post 206 through the lifting lug 210, and is used for collecting the wheel speed and sending the wheel speed to the data feedback control system 1 through the whole vehicle wiring harness 5.
As shown in fig. 12, the suspension linear displacement sensor 212 is fixedly connected to the suspension damper 213 through a fixing bolt 215, the suspension damper 213 is fixed to the frame 4 through a damper outer frame 214, collects the displacement of the racing car in the transverse direction and the longitudinal direction, and sends the collected data to the data relay processing unit 3 through the entire car harness 5 for preprocessing and then to the data feedback control system 1.
As shown in fig. 14, the brake pressure sensor 401 is fixedly connected to the brake pipe cross 402, and is configured to collect the magnitude of the brake force in the brake pipe 403 in real time, and send the magnitude to the data feedback control system 1 through the entire vehicle harness 5.
As shown in fig. 3 and 4, the crankshaft position sensor 103, the camshaft position sensor 104 and the knock sensor 102 are fixedly connected to the engine 101, the crankshaft position sensor 103 and the camshaft position sensor 104 are matched with each other to detect the rotating speed of the engine 101, and the rotating speed is sent to the data feedback system 1 through the whole vehicle wiring harness 5, so as to provide a basis for determining the fuel injection quantity and the ignition advance angle, detecting the reference position of the engine reference cylinder, judging the cylinder order, and further determining the position of the piston; meanwhile, data of the crankshaft position sensor 103 are collected and analyzed, and basis is provided for fuel injection and ignition control, idling control, exhaust gas recirculation control, fuel evaporation control and the like. The knock sensor 102 is installed in the engine block, and is used for measuring the jitter of the engine and adjusting the ignition advance angle when knocking occurs in the engine 101. After the data acquisition is finished, the data are sent to the data feedback control system 1 through the whole vehicle wire harness 5, and then the data are compared with the vibration energy in normal operation, so that whether knocking occurs or not can be determined.
As shown in fig. 7, the engine oil temperature sensor 111 is fixedly installed on the engine oil tank 112, and is configured to collect a temperature of the engine lubrication system, and send the collected engine oil temperature to the data feedback control system 1 through the entire vehicle harness 5, so as to monitor the performance of the engine lubrication system in real time.
As shown in fig. 8, the water temperature sensor 113 is fixedly installed in the cooling water path 114, and is configured to collect the temperature of the cooling water in the cooling system, and send the collected water temperature to the data feedback control system 1 through the entire vehicle harness 5, the data feedback control system 1 compares the actually measured water temperature signal with the set temperature, and when the temperature reaches a certain value, performs negative feedback adjustment.
As shown in fig. 6, the air flow meter 110 and the intake pressure sensor 108 are fixedly installed on the pressure stabilizing cavity 109, the air flow meter 110 can sense the amount of intake air and send the intake air to the data feedback control system 1 through the whole vehicle wiring harness 5, and then the intake air is compared with data in the database, so that the size of the fuel injection quantity is finally determined and the fuel injection quantity is adjusted, and the engine 101 can be ensured to obtain the most appropriate mixture ratio under various working conditions. The absolute pressure in the pressure stabilizing cavity 109 is detected by the air inlet pressure sensor 108, and then is sent to the data feedback control system 1 through the whole vehicle wiring harness 5, so that the basic fuel injection quantity is controlled.
As shown in fig. 5, the oxygen sensor 105 is fixedly installed in the exhaust pipeline 106, collects the oxygen concentration in the racing car exhaust pipeline 106, sends the oxygen concentration data to the data feedback control system 1 through the whole car wiring harness 5, compares the oxygen concentration data with a standard value, determines whether the oxygen concentration reaches the combustion air-fuel ratio, and adjusts the combustion air-fuel ratio to ensure that the engine quality and the exhaust emission reach the standard.
As shown in fig. 15, the data relay processing unit 3 is fixedly connected to the vehicle frame 4 through a fixing bolt 203, pre-processes a large amount of complex data, and transmits the processed data to the data feedback control system 1 through the entire vehicle harness 5, so as to reduce the load of the data feedback control system 1. The data feedback control system 1 is fixedly arranged on the frame 4, processes and analyzes the whole vehicle data, and continuously compares and calculates the data with the collected signals of each sensor. The results of the comparison and calculation are used for controlling the corresponding parameters, and the data are transmitted to the wireless remote sensing system 2 through the whole vehicle wiring harness 5.
As shown in fig. 2 and 13, the wireless remote sensing system 2 is composed of a wireless remote sensing module 301, a connection terminal 302 and a transceiving antenna 303, is fixedly installed on the frame 4, and transmits received data of the whole vehicle, which needs to be monitored in real time, to a computer.
In the description of the present invention, it should be noted that the terms "upper", "lower", "front", "back", "left", "right", and the like indicate orientations or positional relationships based on orientations or positional relationships shown in the drawings or orientations or positional relationships that the products of the present invention are conventionally placed in use, and are only used for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the devices or elements referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.
Claims (10)
1. The technical scheme adopted by the invention is as follows: a C125-based data acquisition and information feedback system for formula racing comprises a data acquisition system, a data relay processing unit, a data feedback control system and a wireless remote sensing system. The data acquisition system comprises: a 12-way MLX90615 tire temperature sensor, a 4-way brake disc temperature sensor, a 4-way wheel speed sensor, a 4-way suspension linear displacement sensor, a water temperature sensor, an engine oil temperature sensor, an oxygen sensor, an air flow meter, an intake pressure sensor, a crankshaft position sensor, a camshaft position sensor, a knock sensor and a brake pressure sensor.
The data acquisition system acquires data related to racing cars through the multi-path high-precision sensor, the data relay processing unit preprocesses the data acquired by the data acquisition system and transmits the data to the data feedback control system, and the data of the data feedback control system is transmitted to the computer interface by utilizing the independently developed wireless remote sensing system.
2. The data acquisition and information feedback system according to claim 1, wherein: the data acquisition system comprises 12 paths of MLX90615 tire temperature sensors which are divided into 4 groups, each wheel on the racing car corresponds to 3 MLX90615 tire temperature sensors, and the wheels are fixedly installed on the support.
3. The data acquisition and information feedback system according to claim 1, wherein: the support is a U-shaped steel frame, a steel plate is fixedly connected to the U-shaped wall on one side, a plurality of mounting holes are formed in the steel plate, three tire temperature sensors can be arranged in different positions, and the brake disc temperature sensors are fixedly mounted on the stand columns.
4. The data acquisition and information feedback system according to claim 1, wherein: the suspension linear displacement sensor is fixedly connected with the suspension shock absorber through a fixing bolt, and the suspension shock absorber is fixed on the frame through a shock absorber outer frame.
5. The data collection and information retrieval system as recited in claim 1, wherein: the wheel speed sensor is fixedly connected to the stand column through the lifting lugs, and the brake pressure sensor is fixedly connected to the brake pipeline four-way joint.
6. The data acquisition and information feedback system according to claim 1, wherein: the crankshaft position sensor, the camshaft position sensor and the knock sensor are fixedly connected to the engine, and the knock sensor is installed in the engine cylinder body.
7. The data acquisition and information feedback system according to claim 1, wherein: the engine oil temperature sensor is fixedly arranged on the engine oil tank, and the water temperature sensor is fixedly arranged in the cooling water path.
8. The data acquisition and information feedback system according to claim 1, wherein: the air flow meter and the air inlet pressure sensor are fixedly arranged on the pressure stabilizing cavity, and the oxygen sensor is fixedly arranged in the exhaust pipeline.
9. The data acquisition and information feedback system according to claim 1, wherein: the data relay processing unit is fixedly connected to the frame through a fixing bolt, and the data feedback control system is fixedly installed on the frame.
10. The data acquisition and information feedback system according to claim 1, wherein: the wireless remote sensing system is fixedly arranged on the frame.
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| CN201910495729.3A CN112067037A (en) | 2019-06-10 | 2019-06-10 | Formula car data acquisition and information feedback system based on C125 |
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| CN201910495729.3A CN112067037A (en) | 2019-06-10 | 2019-06-10 | Formula car data acquisition and information feedback system based on C125 |
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2019
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| CN103207088A (en) * | 2013-03-18 | 2013-07-17 | 中国汽车技术研究中心 | Vehicle-mounted automobile experimental data acquisition system |
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| CN206501659U (en) * | 2016-12-18 | 2017-09-19 | 华南理工大学广州学院 | Look after and guide servicing unit in a kind of equation motorcycle race chassis |
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