CN211617674U - Data acquisition device of vehicle braking system - Google Patents
Data acquisition device of vehicle braking system Download PDFInfo
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- CN211617674U CN211617674U CN202020211761.2U CN202020211761U CN211617674U CN 211617674 U CN211617674 U CN 211617674U CN 202020211761 U CN202020211761 U CN 202020211761U CN 211617674 U CN211617674 U CN 211617674U
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Abstract
The utility model provides a vehicle braking system data acquisition device, including signal processor, pedal sensor, stopper sensor and on-vehicle automatic diagnosis system (OBD) interface, this signal processor is suitable for the receipt and comes from the signal of pedal sensor, stopper sensor and on-vehicle automatic diagnosis system interface is with the same time axis record and the signal of saving receipt. By integrating the signals detected by the pedal sensor and the brake sensor and the signals read by the interface of the on-board automatic diagnostic system into the signal processor with the same time axis, the vehicle fault can be quickly and accurately confirmed.
Description
Technical Field
The utility model relates to a vehicle inspection technical field, more specifically relates to a vehicle braking system data acquisition device.
Background
The vehicle brake system mainly comprises parts such as an energy supply device, a control device, a transmission device, a brake and the like, and comprises a plurality of parts such as a brake pedal, a vacuum booster, a master cylinder, a brake oil pipe, a brake cylinder, a brake disc, a drum brake or a disc brake and the like.
At present, the fault analysis of the vehicle brake system is generally carried out by adopting a part replacement test, namely parts are sequentially replaced until a problem point is found, and if the fault of the brake system is accidental or the problems of partial wear of a friction plate, partial soft braking and the like, the problem point is difficult to be confirmed by the part replacement test method.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to overcome the defect that exists among the above-mentioned prior art, provide a vehicle braking system data acquisition device to confirm the problem point fast and accurately.
In order to realize the purpose of the utility model, the utility model provides a following technical scheme:
a vehicle braking system data acquisition device comprises a signal processor, a pedal sensor, a brake sensor and an on-board automatic diagnostic system (OBD) interface, wherein the signal processor is suitable for receiving signals from the pedal sensor, the brake sensor and the on-board automatic diagnostic system interface and recording and storing the received signals with the same time axis.
According to the utility model discloses an optional implementation way, signal processor still is connected with display terminal, display terminal is suitable for and receives the signal that comes from signal processor.
According to an optional embodiment of the invention, the brake sensor is a pressure sensor, the pressure sensor being adapted to detect a hydraulic pressure of a brake for the wheel.
According to an optional embodiment of the invention, the brake sensors are provided with at least four to detect the hydraulic pressure of the brakes for four wheels respectively, i.e. the hydraulic pressure of the brake of each wheel is detected by at least one brake sensor.
According to the utility model discloses an optional embodiment, the stopper sensor passes through the discharge valve of screwed joint access stopper, perhaps the stopper sensor passes through three way connection and inserts between brake hose and the braking hard tube.
According to an optional embodiment of the present invention, the pedal sensor comprises a pedal force sensor and a pedal travel sensor.
According to the utility model discloses an optional implementation mode, on-vehicle automatic diagnosis system interface is connected with on-vehicle automatic diagnosis system to read on-vehicle automatic diagnosis system's data.
According to an optional embodiment of the present invention, the signal processor is powered by a vehicle power supply.
The utility model discloses following beneficial technological effect has:
the signal processor receives signals from the pedal sensor, the brake sensor and the vehicle-mounted automatic diagnosis system interface, records and stores the received signals according to the same time axis, realizes the cooperative processing of three signals, can quickly and accurately confirm the vehicle fault, and further improves the efficiency of accurately judging the vehicle fault compared with a part replacement test and separately utilizing the vehicle-mounted automatic diagnosis system, separately acquiring brake pedal data or separately acquiring wheel end brake pressure.
Drawings
Other features and advantages of the present invention will be better understood from the following detailed description of preferred embodiments thereof, taken in conjunction with the accompanying drawings, in which:
fig. 1 shows a schematic structural diagram of a vehicle braking system data acquisition device according to an embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
Fig. 1 is the embodiment of the utility model provides a vehicle braking system data acquisition device's structure schematic diagram, including signal processor 1, pedal sensor 2, brake sensor 3 and on-vehicle automatic diagnosis system (OBD) interface 4, wherein, pedal sensor 2 and brake sensor 3 are connected with the braking system of vehicle.
Specifically, the brake system of the vehicle generally includes a brake pedal 10, a booster 11, an ABS device 12 (or ESP device), a brake line 13, and brakes 14 (brakes of only one wheel are shown). Wherein the booster 11 is, for example, a vacuum booster, a hydraulic booster, the ABS device 12 generally includes three parts (not shown) of a wheel speed sensor, a controller (ABS-ECU) and an actuator (ABS pump), the brake pipe 13 is used for transmitting brake fluid, the brake pipe 13 includes a brake hose and a brake pipe, the brake pipe is disposed at a position of a vehicle body, a vehicle frame, etc., and the brake hose is disposed between parts having relative movement, such as a wheel, the brake pipe 13 is connected to a brake 14 of the wheel via the ABS pump from the booster 11, and the brake 14 is, for example, a disc brake, a drum brake. The braking process of the vehicle is substantially as follows: the braking force of the foot on the brake pedal 10 is transmitted to the ABS device 12 via the booster 11, the ABS device 12 transmits the hydraulic pressure to the brakes 14 of the respective wheels via the brake pipe 13, and the brakes 14 apply braking action to the wheels by frictional force.
In an alternative embodiment of the present invention, the pedal sensor 2 includes a pedal force sensor and a pedal stroke sensor for detecting the braking force and the braking stroke applied to the brake pedal 10, and the data obtained by the pedal sensor 2 is transmitted to the signal processor 1. Alternatively, the pedal force sensor and the pedal stroke sensor may be provided separately, and preferably, the pedal force sensor and the pedal stroke sensor may be provided integrally, for example, a pedal force stroke tester of model PA-10.
In an alternative embodiment of the invention, the brake sensor 3 is a pressure sensor adapted to detect the hydraulic pressure of the brake 14 for the wheel 15. According to the embodiment shown in fig. 1, the brake sensor 3 includes a right front wheel brake sensor 31, a left front wheel brake sensor 32, a left rear wheel brake sensor 33, and a right rear wheel brake sensor 34 to detect the hydraulic pressures of the brakes 14 for the right front wheel, the left rear wheel, and the right rear wheel, respectively.
In an alternative embodiment of the present invention, the brake sensor 3 is connected to the exhaust valve of the brake 14 through a screw joint, or the brake sensor 3 is connected to the brake hose and the brake pipe through a three-way joint. Alternatively, for the same wheel end, a brake sensor 3 is provided which is connected via a screw connection to the outlet valve of the brake 14, and a further brake sensor 3 is provided which is connected via a three-way connection between the brake hose and the brake pipe. Therefore, at least four brake sensors 3 are provided, and at least one brake sensor 3 is provided for each wheel.
The utility model discloses an in the optional embodiment, on-vehicle automatic diagnosis system interface 4 is connected with on-vehicle automatic diagnosis system to read on-vehicle automatic diagnosis system's data, including speed, engine speed, acceleration, brake pedal switching signal, accelerator pedal signal, manual brake signal, vacuum signal (intake manifold or vacuum booster's vacuum), brake master cylinder pressure signal, ABS/ESP pump signal etc. data of whole car.
According to the embodiment shown in fig. 1, the signal processor 1 receives signals from the pedal sensor 2, the brake sensor 3 and the vehicle-mounted automatic diagnostic system interface 4 and records and stores the received signals with the same time axis, so that the cooperative processing of the three signals is realized, and the vehicle fault can be quickly and accurately confirmed.
In an alternative embodiment of the present invention, the signal processor 1 is specifically an Electronic Control Unit (ECU) of a vehicle, including a Microprocessor (MCU), a memory (ROM, RAM), an input/output interface (I/O), an analog-to-digital converter (a/D), and a large-scale integrated circuit for shaping, driving, etc., and it can be seen that the Electronic Control Unit (ECU) is a digital signal processor which needs to convert signals from an analog domain to a digital domain before performing digital signal processing. And in this case, the pedal sensor 2, the brake sensor 3, and the in-vehicle automatic diagnostic system interface 4 are connected to respective input interfaces of the electronic control unit.
In an alternative embodiment of the present invention, the signal processor 1 may be powered by an onboard power supply, such as a 12V power supply for a complete vehicle.
In the optional embodiment of the present invention, as shown in fig. 1, the signal processor 1 is further connected to a display terminal 5, the display terminal 5 is connected to the output interface of the signal processor 1 and receives the signal from the signal processor 1, and the connection between the display terminal 5 and the signal processor 1 may be a wired connection or a wireless connection. Optionally, the display terminal 5 is a digital display, a computer or a portable mobile communication device.
In the utility model, the data acquisition device of the vehicle brake system is installed according to the figure 1, namely, four brake sensors 3 for the brakes 14 of the respective wheels are installed, a pedal sensor 2 is installed, an on-vehicle automatic diagnostic system interface 4 is connected with the on-vehicle automatic diagnostic system, during the braking process of the vehicle, the pedal sensor 2 and the brake sensor 3 detect the braking system of the vehicle, the vehicle-mounted automatic diagnosis system interface 4 reads the signals of the vehicle-mounted automatic diagnosis system, the signal processor 1 records and stores the signals from the pedal sensor 2, the brake sensor 3 and the vehicle-mounted automatic diagnosis system interface 4 with the same time axis, the signal processor 1 further includes, optionally, a process of converting and processing the signal, and displays the result of the processing on the display terminal 5, so that the driver or the serviceman can easily make a judgment about the failure of the brake system.
Compared with the prior art, the utility model discloses a signal processor is integrated with the same time axis with the signal that detects pedal sensor and stopper sensor and on-vehicle automatic diagnosis system interface read, can confirm vehicle fault fast and accurately.
Although some embodiments have been described herein by way of example, various modifications may be made to these embodiments without departing from the spirit of the invention, and all such modifications are intended to be included within the scope of the invention as defined in the following claims.
The particular embodiments disclosed herein are illustrative only, as the invention may be modified in nature and equivalents thereof, apparent to those skilled in the art from the teachings herein, and, thus, the specific embodiments of the invention disclosed above are illustrative only, and are not to be considered in a limiting sense as to the details of construction or design herein disclosed unless otherwise specified in the claims. Accordingly, the particular illustrative embodiments disclosed above are susceptible to various substitutions, combinations or modifications, all of which are within the scope of the disclosure. All numbers and ranges disclosed above may also vary somewhat.
In addition, the number of components in the claims includes one or at least one unless otherwise specified. If there is any inconsistency between the words or terms used in the present invention and the usage or meaning in other documents, the definitions of the words or terms used in the present invention shall be applied.
Claims (8)
1. A vehicle braking system data acquisition device, characterized by comprising a signal processor, a pedal sensor, a brake sensor and an on-board automatic diagnostic system (OBD) interface, wherein the signal processor is adapted to receive signals from the pedal sensor, the brake sensor and the on-board automatic diagnostic system interface and record and save the received signals with the same time axis.
2. The vehicle braking system data acquisition device according to claim 1, wherein a display terminal is further connected to the signal processor, the display terminal being adapted to receive signals from the signal processor.
3. The vehicle braking system data acquisition device according to claim 2, wherein the brake sensor is a pressure sensor adapted to detect a hydraulic pressure of a brake for a wheel.
4. The vehicle brake system data collection device according to claim 3, wherein the brake sensors are provided in at least four to detect hydraulic pressures of brakes for four wheels, respectively.
5. The vehicle braking system data acquisition device according to claim 3, wherein the brake sensor is connected to an exhaust valve of the brake through a threaded joint, or the brake sensor is connected between a brake hose and a brake pipe through a tee joint.
6. The vehicle braking system data acquisition device according to claim 2, wherein the pedal sensor includes a pedal force sensor and a pedal travel sensor.
7. The vehicle braking system data acquisition device according to claim 2, wherein the vehicle-mounted automatic diagnostic system interface is connected with a vehicle-mounted automatic diagnostic system to read data of the vehicle-mounted automatic diagnostic system.
8. The vehicle braking system data acquisition device according to any one of claims 1 to 7, wherein the signal processor is powered by an onboard power supply.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020211761.2U CN211617674U (en) | 2020-02-26 | 2020-02-26 | Data acquisition device of vehicle braking system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020211761.2U CN211617674U (en) | 2020-02-26 | 2020-02-26 | Data acquisition device of vehicle braking system |
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| CN211617674U true CN211617674U (en) | 2020-10-02 |
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| CN202020211761.2U Active CN211617674U (en) | 2020-02-26 | 2020-02-26 | Data acquisition device of vehicle braking system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112727965A (en) * | 2020-12-24 | 2021-04-30 | 三一重型装备有限公司 | Fault monitoring method and device for brake of coal mining machine |
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2020
- 2020-02-26 CN CN202020211761.2U patent/CN211617674U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112727965A (en) * | 2020-12-24 | 2021-04-30 | 三一重型装备有限公司 | Fault monitoring method and device for brake of coal mining machine |
| CN112727965B (en) * | 2020-12-24 | 2023-02-24 | 三一重型装备有限公司 | Fault monitoring method and device for brake of coal mining machine |
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