CN110108507B - New energy automobile hydraulic pressure detecting system - Google Patents
New energy automobile hydraulic pressure detecting system Download PDFInfo
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- CN110108507B CN110108507B CN201910428167.0A CN201910428167A CN110108507B CN 110108507 B CN110108507 B CN 110108507B CN 201910428167 A CN201910428167 A CN 201910428167A CN 110108507 B CN110108507 B CN 110108507B
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M17/00—Testing of vehicles
- G01M17/007—Wheeled or endless-tracked vehicles
- G01M17/06—Steering behaviour; Rolling behaviour
Abstract
The invention discloses a hydraulic detection system of a new energy automobile, wherein a temperature and pressure integrated detection device is arranged in an oil tank and used for collecting pressure signals and temperature signals in the oil tank, an oil pressure sensor is arranged on a high-pressure oil outlet pipe and a low-pressure oil return pipe, a water flow sensor is arranged at the oil inlet end of a brake control pump and the oil outlet end of a steering control pump, a three-axis acceleration sensor and a three-axis gyroscope are arranged on a steering gear, the temperature and pressure integrated detection device, the oil pressure sensor, the water flow sensor, the three-axis acceleration sensor and the three-axis gyroscope are respectively connected with a controller through a digital analog device, the collected pressure signals, temperature signals, oil pressure signals and oil flow speed signals in the oil tank are converted into digital signals and input to the controller, and the controller is connected with an LED digital tube arranged on a steering cabin instrument panel for display. The hydraulic system of the new energy automobile is comprehensively monitored, and the safety of the new energy automobile is greatly improved.
Description
Technical Field
The invention belongs to the technical field of new energy automobiles, and particularly relates to a hydraulic detection system for a new energy automobile.
Background
In a new energy automobile, an electric hydraulic power-assisted steering system is a key part of the automobile and is directly related to the maneuverability, stability and safety of the whole automobile. The electric hydraulic power-assisted steering system in the prior art generally mainly comprises an energy storage mechanism, a variable frequency controller, an electric hydraulic power-assisted steering pump assembly, a hydraulic oil tank and a steering gear, wherein the variable frequency controller outputs alternating-current voltage with variable frequency to drive the electric hydraulic power-assisted steering pump assembly, and fluid in the hydraulic oil tank flows to the steering gear at a flow speed through a hydraulic pump of the electric hydraulic power-assisted steering pump assembly to provide power for the steering system.
Disclosure of Invention
The technical problem to be solved by the invention is to provide a new energy automobile hydraulic detection system aiming at the defects in the prior art, so that the hydraulic system of the new energy automobile is comprehensively monitored, a user can conveniently check the working state of the whole hydraulic system in the using process, and the system has an early warning analysis function, so that the fault problem of the hydraulic system can be timely found, and the safety of the new energy automobile is greatly improved.
The invention adopts the following technical scheme:
a hydraulic detection system of a new energy automobile comprises a temperature and pressure integrated detection device, an oil pressure sensor, a water flow sensor, a three-axis acceleration sensor, a three-axis gyroscope and a controller, wherein the temperature and pressure integrated detection device is arranged in an oil tank, the temperature and pressure integrated detection device comprises a temperature sensor, a pressure sensor, a brake control pump, a three-axis acceleration sensor, a three-axis gyroscope, a temperature and pressure integrated detection device, an oil pressure sensor, a water flow sensor, a controller, a digital signal converter and a digital LED nixie tube, wherein the pressure signal and the temperature signal in the oil tank are collected, the oil pressure sensor is arranged on a high-pressure oil outlet pipe and a low-pressure oil return pipe, the water flow sensor is arranged at the oil inlet end of the brake control pump and the oil outlet end of the steering control pump, the three-axis acceleration sensor and the three-axis gyroscope are arranged on a steering gear, the temperature and pressure integrated detection device, the oil pressure sensor, the water flow sensor, the three-axis acceleration sensor and the three-axis gyroscope are respectively connected with the controller through the digital analog converter, the collected pressure signal in the oil tank, the temperature signal, the oil pressure signal and the oil flow speed signal are converted into the digital signal and are input to the controller, and the LED nixie tube arranged on a dashboard of the cockpit is connected with the digital tube for displaying.
Concretely, oil pressure sensor includes first oil pressure sensor and second oil pressure sensor, and first oil pressure sensor installs on high pressure goes out oil pipe, and second oil pressure sensor installs on oil pipe is returned to the low pressure, and first oil pressure sensor and second oil pressure sensor are used for gathering oil pressure signal respectively to send the digifax ware.
Specifically, the water flow sensor comprises a first water flow sensor and a second water flow sensor, the first water flow sensor is installed at the oil inlet end of the brake control pump, the second water flow sensor is installed at the oil outlet end of the steering control pump, and the first water flow sensor and the second water flow sensor are respectively used for collecting oil flow rate signals of the oil inlet end and the oil outlet end of the brake control pump and the steering control pump and sending the oil flow rate signals to the digital-analog converter.
Specifically, the three-axis acceleration sensor adopts an ADXL345 chip; the tri-axial gyroscope employs an L3G4200D chip.
Specifically, the controller uses the STM32F103C8T6 chip.
Specifically, the detection system further comprises an alarm connected with the controller and used for sending out a corresponding voice alarm according to a control command output by the controller.
Specifically, the controller links to each other with the server through the internet for data transmission that the integrative detection device of warm-pressing, oil pressure sensor, rivers sensor, triaxial acceleration sensor and triaxial gyroscope gathered sends the server to save, and the server is connected with cell-phone APP.
Further, a data viewing module and a hydraulic system evaluation module are arranged in the mobile phone APP, and the data viewing module is used for viewing related data through an access server; the hydraulic system evaluation module is used for outputting a corresponding hydraulic system performance evaluation result according to data collected by the temperature and pressure integrated detection device, the oil pressure sensor, the water flow sensor, the three-axis acceleration sensor and the three-axis gyroscope.
Further, the hydraulic system evaluation module includes:
the drawing module is used for generating various curves according to data collected by the temperature and pressure integrated detection device, the oil pressure sensor, the water flow sensor, the three-axis acceleration sensor and the three-axis gyroscope;
the regression calculation module is used for carrying out regression calculation on the curve drawn by the drawing module through different functions;
the prediction analysis module is used for comparing and analyzing the real-time curve drawn by the drawing module with the original standard curve and outputting an evaluation result;
and the performance evaluation module evaluates data acquired by the temperature and pressure integrated detection device, the oil pressure sensor, the water flow sensor, the three-axis acceleration sensor and the three-axis gyroscope based on a BP neural network algorithm and outputs an evaluation result.
Compared with the prior art, the invention has at least the following beneficial effects:
the hydraulic detection system for the new energy automobile realizes comprehensive monitoring of the hydraulic system of the new energy automobile, is convenient for a user to check the working state of the whole hydraulic system in the using process, and has an early warning and analyzing function, so that the fault problem of the hydraulic system can be timely found, and the safety of the new energy automobile is greatly improved.
The technical solution of the present invention is further described in detail by the accompanying drawings and embodiments.
Drawings
FIG. 1 is a system diagram of the present invention.
Wherein: 1. a warm-pressing integrated detection device; 2. a first oil pressure sensor; 3. a steering control pump; 4. a second oil pressure sensor; 5. a brake control pump; 6. a first water flow sensor; 7. a second water flow sensor; 8. a three-axis acceleration sensor; 9. a three-axis gyroscope; 10. a digital-to-analog converter; 11. a controller; 12. a server; 13. an alarm; 14, LED nixie tubes; 15. a data viewing module; 16. a hydraulic system evaluation module.
Detailed Description
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "one side", "one end", "one side", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, are not to be construed as limiting the present invention. Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
The invention provides a hydraulic detection system of a new energy automobile, which collects pressure signals, temperature signals, oil pressure signals and oil flow rate signals in an oil tank through a temperature and pressure integrated detection device 1, an oil pressure sensor, a water flow sensor, a three-axis acceleration sensor 8 and a three-axis gyroscope 9, converts the pressure signals, the temperature signals, the oil pressure signals and the oil flow rate signals into digital signals and inputs the digital signals to a controller 11 through the controller 11.
Referring to fig. 1, the hydraulic pressure detection system for a new energy automobile of the present invention includes a warm-pressure integrated detection device 1 installed in an oil tank, oil pressure sensors installed on a high-pressure oil outlet pipe and a low-pressure oil return pipe, water flow sensors installed on an oil inlet end of a brake control pump 5 and an oil outlet end of a steering control pump 3, a three-axis acceleration sensor 8 and a three-axis gyroscope 9 installed on a steering gear, an LED nixie tube 14 installed on a dashboard of a cockpit, the digital-analog device 10, the controller 11 and the alarm 13 are connected with the temperature and pressure integrated detection device 1, the oil pressure sensor, the water flow sensor, the three-axis acceleration sensor 8 and the three-axis gyroscope 9 through the digital-analog device 10 and the controller 11 respectively, collected pressure signals, temperature signals, oil pressure signals and oil flow rate signals in the oil tank are converted into digital signals and input to the controller 11, and the controller 11 is connected with the LED nixie tube 14 and the alarm 13 respectively for displaying and alarming.
The temperature and pressure integrated detection device 1 is used for collecting pressure signals in an oil tank and temperature signals in the oil tank, and sending the collected pressure signals in the oil tank and the collected temperature signals in the oil tank to the digital-analog converter 10.
The oil pressure sensor comprises a first oil pressure sensor 2 and a second oil pressure sensor 4, the first oil pressure sensor 2 is installed on a high-pressure oil outlet pipe, the second oil pressure sensor 4 is installed on a low-pressure oil return pipe and is used for collecting oil pressure signals respectively, and the collected oil pressure signals are sent to the digital-analog converter 10.
The water flow sensor comprises a first water flow sensor 6 and a second water flow sensor 7, the first water flow sensor 6 is installed at the oil inlet end of the brake control pump 5, the second water flow sensor 7 is installed at the oil outlet end of the steering control pump 3 and is respectively used for collecting oil flow rate signals of the oil inlet end and the oil outlet end of the brake control pump 5 and the steering control pump 3 and sending the collected oil flow rate signals to the digital-analog converter 10.
The three-axis acceleration sensor 8 and the three-axis gyroscope 9 are arranged on the steering gear and are respectively used for collecting the working state data of the steering gear, and the three-axis acceleration sensor 8 adopts an ADXL345 chip; the three-axis gyroscope 9 employs an L3G4200D chip.
The digital-analog converter 10 is configured to convert the received pressure signal in the oil tank, the temperature signal in the oil tank, the oil pressure signal, and the oil flow rate signal into digital signals and input the digital signals to the controller 11.
The controller 11 is used for receiving the digital signals sent by the digital-analog converter 10 and controlling the LED nixie tube 14 to display according to the data signals, and the controller 11 adopts an STM32F103C8T6 chip.
The LED nixie tube 14 is mounted on the instrument panel of the cockpit and is used for receiving the command of the controller 11 and reflecting the working condition of the hydraulic system to the driver in a digital form.
The alarm 13 is used for sending out a corresponding voice alarm according to the control command output by the controller 11.
A data viewing module 15 and a hydraulic system evaluation module 16 are arranged in the mobile phone APP, and the data viewing module 15 is used for viewing related data through the access server 12; the hydraulic system evaluation module 16 is used for outputting a corresponding hydraulic system performance evaluation result according to data acquired by the temperature and pressure integrated detection device, the oil pressure sensor, the water flow sensor, the three-axis acceleration sensor and the three-axis gyroscope.
The hydraulic system evaluation module 16 includes:
the drawing module is used for generating various curves according to data collected by the temperature and pressure integrated detection device, the oil pressure sensor, the water flow sensor, the three-axis acceleration sensor and the three-axis gyroscope;
the regression calculation module is used for carrying out regression calculation on the curve drawn by the drawing module through different functions;
the prediction analysis module is used for comparing and analyzing the real-time curve drawn by the drawing module with the original standard curve and outputting an evaluation result;
and the performance evaluation module evaluates data acquired by the temperature and pressure integrated detection device, the oil pressure sensor, the water flow sensor, the three-axis acceleration sensor and the three-axis gyroscope based on a BP neural network algorithm and outputs an evaluation result.
The above-mentioned contents are only for illustrating the technical idea of the present invention, and the protection scope of the present invention is not limited thereby, and any modification made on the basis of the technical idea of the present invention falls within the protection scope of the claims of the present invention.
Claims (3)
1. A hydraulic detection system of a new energy automobile is characterized by comprising a temperature and pressure integrated detection device (1), an oil pressure sensor, a water flow sensor, a three-axis acceleration sensor (8), a three-axis gyroscope (9) and a controller (11), wherein the temperature and pressure integrated detection device (1) is arranged in an oil tank and used for collecting pressure signals in the oil tank and temperature signals in the oil tank, the oil pressure sensor is arranged on a high-pressure oil outlet pipe and a low-pressure oil return pipe and comprises a first oil pressure sensor (2) and a second oil pressure sensor (4), the first oil pressure sensor (2) is arranged on the high-pressure oil outlet pipe, the second oil pressure sensor (4) is arranged on the low-pressure oil return pipe, the first oil pressure sensor (2) and the second oil pressure sensor (4) are respectively used for collecting oil pressure signals and sending the oil pressure signals to a digital analog converter (10), and the water flow sensor is arranged at an oil inlet end of a brake control pump (5) and an oil outlet end of a steering control pump (3), the water flow sensor comprises a first water flow sensor (6) and a second water flow sensor (7), the first water flow sensor (6) is installed at the oil inlet end of the brake control pump (5), the second water flow sensor (7) is installed at the oil outlet end of the steering control pump (3), the first water flow sensor (6) and the second water flow sensor (7) are respectively used for collecting oil flow speed signals of the oil inlet end and the oil outlet end of the brake control pump (5) and the steering control pump (3) and sending the oil flow speed signals to the digital analog device (10), the three-axis acceleration sensor (8) and the three-axis gyroscope (9) are installed on the steering gear, the temperature and pressure integrated detection device (1), the oil pressure sensor, the water flow sensor, the three-axis acceleration sensor (8) and the three-axis gyroscope (9) are respectively connected with the controller (11) through the digital analog device (10), and collected pressure signals, temperature signals and pressure signals in the oil tank, The oil pressure signal and the oil flow rate signal are converted into digital signals and input to the controller (11), the controller (11) is connected with an LED nixie tube (14) arranged on a cockpit instrument panel and used for displaying, the detection system further comprises an alarm (13), the alarm (13) is connected with the controller (11) and used for sending out a corresponding voice alarm according to a control command output by the controller (11), the controller (11) is connected with the server (12) through the Internet and used for sending data collected by the temperature and pressure integrated detection device (1), the oil pressure sensor, the water flow sensor, the triaxial acceleration sensor (8) and the triaxial gyroscope (9) to the server (12) for storage, and the server (12) is connected with a mobile phone APP; a data viewing module (15) and a hydraulic system evaluation module (16) are arranged in the mobile phone APP, and the data viewing module (15) is used for viewing related data through an access server (12); the hydraulic system evaluation module (16) is used for outputting a corresponding hydraulic system performance evaluation result according to data collected by the temperature and pressure integrated detection device, the oil pressure sensor, the water flow sensor, the three-axis acceleration sensor and the three-axis gyroscope, and the hydraulic system evaluation module (16) comprises:
the drawing module is used for generating various curves according to data collected by the temperature and pressure integrated detection device, the oil pressure sensor, the water flow sensor, the three-axis acceleration sensor and the three-axis gyroscope;
the regression calculation module is used for carrying out regression calculation on the curve drawn by the drawing module through different functions;
the prediction analysis module is used for comparing and analyzing the real-time curve drawn by the drawing module with the original standard curve and outputting an evaluation result;
and the performance evaluation module evaluates data acquired by the temperature and pressure integrated detection device, the oil pressure sensor, the water flow sensor, the three-axis acceleration sensor and the three-axis gyroscope based on a BP neural network algorithm and outputs an evaluation result.
2. The new energy automobile hydraulic pressure detection system of claim 1, characterized in that the triaxial acceleration sensor (8) adopts an ADXL345 chip; the three-axis gyroscope (9) uses an L3G4200D chip.
3. The new energy automobile hydraulic pressure detection system of claim 1, characterized in that the controller (11) adopts an STM32F103C8T6 chip.
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| CN201910428167.0A CN110108507B (en) | 2019-05-22 | 2019-05-22 | New energy automobile hydraulic pressure detecting system |
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| CN201910428167.0A CN110108507B (en) | 2019-05-22 | 2019-05-22 | New energy automobile hydraulic pressure detecting system |
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| CN110108507B true CN110108507B (en) | 2021-07-23 |
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| CN111912464A (en) * | 2020-08-17 | 2020-11-10 | 三一重机有限公司 | Hydraulic oil tank detection system and hydraulic oil tank |
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