CN105258953A - Controlling and detecting system of vehicle sensor and vehicle possessing controlling and detecting system - Google Patents
Controlling and detecting system of vehicle sensor and vehicle possessing controlling and detecting system Download PDFInfo
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- CN105258953A CN105258953A CN201510726829.4A CN201510726829A CN105258953A CN 105258953 A CN105258953 A CN 105258953A CN 201510726829 A CN201510726829 A CN 201510726829A CN 105258953 A CN105258953 A CN 105258953A
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Abstract
The invention discloses a controlling and detecting system of a vehicle sensor and a vehicle possessing the controlling and detecting system. According to the controlling and detecting system of the vehicle sensor, a power supply is arranged on each sensor of the vehicle for independent power supply; the output voltage of the power supply for independent power supply and the working voltage of the sensor are collected; and failure conditions of the power supply for independent power supply, the sensor, or a connection line are judged according to the voltage, wherein a first enable signal interface is arranged for each power supply for independent, and a second enable signal interface is arranged for all power supplies for independent power supply. The controlling and detecting system of the vehicle sensor has the following advantages: the sensor is high in precision of failure detection and can judge the failure position of the sensor; and independent control of a plurality of sensors or uniform control of all sensors is realized, and the system is excellent in control flexibility. All power supply modules of the sensor can be uniformly started or closed by a second enable signal, and when the system is of a standby mode, power supply for all sensors can be closed by cutting the second enable signal off, so that energy consumption is reduced.
Description
Technical field
The present invention relates to sensor control field, be specifically related to a kind of control detection system of vehicle sensors and there is its vehicle.
Background technology
With the issue in the international ISO26262 automobile function security development standard end of the year in 2011, judge that the fault of sensor seems have particularly important accurately, the accuracy of judgement degree whether broken down for vehicle sensors in prior art is low.
Summary of the invention
The present invention is intended at least one of solve the problems of the technologies described above.
For this reason, first object of the present invention is the control detection system proposing a kind of vehicle sensors.
Second object of the present invention is to propose a kind of vehicle.
To achieve these goals, the embodiment of a first aspect of the present invention discloses a kind of control detection system of vehicle sensors, comprise: multiple power module, arrange with the multiple sensor one_to_one corresponding on automobile, the sensor arranged for correspondence is powered separately, and described multiple power module is provided with the first enable signal receiving interface; Single-chip microcomputer, described single-chip microcomputer comprises: multiple first enable signal transmission interface, arranging, for sending the first enable signal to described multiple receiver port, starting corresponding power module with described multiple first enable signal receiving port one_to_one corresponding; Multiple power supply voltage signal receiving port, is arranged with described multiple power module one_to_one corresponding, and described multiple power supply voltage signal receiving port is used for the output voltage gathering described multiple power module respectively; Multiple sensor voltage signal receiving port, is arranged with described multiple sensor one_to_one corresponding, and described multiple sensor voltage signal receiving port is used for the output voltage gathering described multiple sensor respectively; Wherein, described single-chip microcomputer is used for judging whether corresponding power module breaks down according to the output voltage of each power module, and described single-chip microcomputer is also for judging according to the output voltage of each sensor whether corresponding sensor breaks down.
According to the control detection system of the vehicle sensors of the embodiment of the present invention, sensor electrical source module is arranged all separately to the multiple sensors on vehicle, and output voltage is gathered to sensor electrical source module and sensor, judge whether sensor electrical source module and sensor break down by output voltage, thus make Transducer fault detection precision high.
In addition, the control detection system of vehicle sensors according to the above embodiment of the present invention, can also have following additional technical characteristic:
Further, also comprise: vehicle battery; Switch, described switch is connected with described single-chip microcomputer, described vehicle battery, and the drive singal according to described single-chip microcomputer is turned on or off; And power module general supply, described power module general supply is connected by described switch with described vehicle battery, and the other end is connected with described multiple power module respectively; Described power module general supply is used for powering to described multiple power module.
Further, described multiple power module is the power module possessing voltage conversion function.
Further, also comprise: multiple voltage signal processing module, arrange with described multiple power module one_to_one corresponding, described multiple voltage signal processing module is used for carrying out filtering process to the output voltage signal of the power module that correspondence is arranged respectively.
Further, also comprise: multiple collecting sensor signal module, arrange with described multiple sensor one_to_one corresponding, described multiple collecting sensor signal module is used for carrying out filtering process to the output voltage signal of described multiple sensor that correspondence is arranged respectively.
Further, described switch is triode or metal-oxide-semiconductor.
To achieve these goals, the embodiment of a second aspect of the present invention discloses a kind of vehicle, comprises the control detection system of above-mentioned vehicle sensors.
According to a kind of vehicle of the embodiment of the present invention, sensor electrical source module is arranged all separately for its power supply to the multiple sensors on vehicle, and output voltage is gathered to sensor electrical source module and sensor, judge whether sensor electrical source module and sensor break down by output voltage, thus make Transducer fault detection precision high; By the enable signal of single-chip microcomputer, multiple power module controls whether power module general supply is powered to it, cause corresponding multiple operating sensor or stopping, whether each power module is controlled separately to work by the enable signal of single-chip microcomputer and causes corresponding operating sensor or stopping simultaneously, achieves the independent control to multiple sensor and overall control.
Additional aspect of the present invention and advantage will part provide in the following description, and part will become obvious from the following description, or be recognized by practice of the present invention.
Accompanying drawing explanation
Above-mentioned and/or additional aspect of the present invention and advantage will become obvious and easy understand from accompanying drawing below combining to the description of embodiment, wherein:
Fig. 1 is the structural representation of the vehicle sensors fault detection system of one embodiment of the invention;
Fig. 2 is the process flow diagram of the sensor electrical source module of one embodiment of the invention and the detection of sensor.
Embodiment
Be described below in detail embodiments of the invention, the example of described embodiment is shown in the drawings, and wherein same or similar label represents same or similar element or has element that is identical or similar functions from start to finish.Being exemplary below by the embodiment be described with reference to the drawings, only for explaining the present invention, and can not limitation of the present invention being interpreted as.
In describing the invention, it will be appreciated that, term " " center ", " longitudinal direction ", " transverse direction ", " on ", D score, " front ", " afterwards ", " left side ", " right side ", " vertically ", " level ", " top ", " end ", " interior ", orientation or the position relationship of the instruction such as " outward " are based on orientation shown in the drawings or position relationship, only the present invention for convenience of description and simplified characterization, instead of indicate or imply that the device of indication or element must have specific orientation, with specific azimuth configuration and operation, therefore limitation of the present invention can not be interpreted as.In addition, term " first ", " second " only for describing object, and can not be interpreted as instruction or hint relative importance.
In describing the invention, it should be noted that, unless otherwise clearly defined and limited, term " installation ", " being connected ", " connection " should be interpreted broadly, and such as, can be fixedly connected with, also can be removably connect, or connect integratedly; Can be mechanical connection, also can be electrical connection; Can be directly be connected, also indirectly can be connected by intermediary, can be the connection of two element internals.For the ordinary skill in the art, concrete condition above-mentioned term concrete meaning in the present invention can be understood.
With reference to description below and accompanying drawing, these and other aspects of embodiments of the invention will be known.Describe at these and in accompanying drawing, specifically disclose some particular implementation in embodiments of the invention, representing some modes of the principle implementing embodiments of the invention, but should be appreciated that the scope of embodiments of the invention is not limited.On the contrary, embodiments of the invention comprise fall into attached claims spirit and intension within the scope of all changes, amendment and equivalent.
Below in conjunction with accompanying drawing, the vehicle sensors fault detection system according to the embodiment of the present invention is described.
Fig. 1 is the structural representation of the vehicle sensors control detection system of one embodiment of the invention.
Please refer to Fig. 1, vehicle sensors fault detection system, comprise multiple power module and single-chip microcomputer.
Wherein, the multiple sensors on multiple power module and vehicle connect one to one, for corresponding sensor power.Each power module is provided with the first enable signal receiving interface, starting, powering, make working sensor to corresponding sensor during by receiving the control signal from single-chip microcomputer.
The control detection system of vehicle sensors also comprises vehicle battery, switch and power module general supply in one embodiment of the invention.Power module general supply is connected by switch with vehicle battery, and the other end is connected with multiple power module respectively.Power module general supply is used for powering to multiple power module.
Particularly, the drive singal sent by single-chip microcomputer is carried out gauge tap and is turned on or off, thus whether control vehicle battery powers to power module general supply, and then whether control battery module general supply powers to multiple battery module.
In one embodiment of the invention, switch is triode or metal-oxide-semiconductor, and single-chip microcomputer gives triode or MOS conducting after drive singal.In an example of the present invention, switch is NMOS tube, provides conducting after corresponding drive singal by flash driving circuit.
In one embodiment of the invention, multiple power module is the power module possessing voltage conversion function, for the operating voltage of voltage transitions needed for respective sensor provided by power module vehicle battery.
Single-chip microcomputer, comprise multiple first enable signal transmission interface IO0/IO1/IO2/IO3, a second enable signal transmission interface, multiple power supply voltage signal receiving port AD0/AD2/AD4/AD6 and multiple sensor voltage signal receiving port AD1/AD3/AD5/AD7.Each first enable signal transmit port is connected with a power module.Each power supply voltage signal receiving port is for receiving the output voltage of corresponding power module.Each sensor voltage signal receiving port is for receiving the output voltage of corresponding sensor.
In an example of the present invention, please refer to Fig. 2, A, B, C, D and E are constant.In this example, A is 4.8V, B be 4.9V, C be 0.1V, D be 0.75V, E is 4.45V.Whether, under accelerator pedal sensor 1 normal operation, the working range of voltage is 0.75V-4.45V, and power module 1 normal output voltage is more than or equal to 4.8V, detect power module 1 normally work by the magnitude of voltage detecting AD0 interface.When AD0 voltage is less than 4.8V, represent that power module 1 breaks down.When power module non-fault, continue to judge whether AD1 is greater than 4.9V, is, represent accelerator pedal sensor 1 pair of power supply short circuit.When accelerator pedal is not to power supply short circuit, judges whether AD1's is less than 0.1V, is, represent accelerator pedal sensor 1 shorted to earth.If above-mentioned fault does not all occur, judge whether AD1 is more than or equal to 0.75V and is less than or equal to 4.45V, is further, represent that accelerator pedal sensor 1 is normal, otherwise represent accelerator pedal sensor 1 fault.It should be noted that, according to the voltage range under accelerator pedal sensor 1 normal operation and different sensor constructions in this example, the output voltage of accelerator pedal sensor 1 can adjust accordingly to some extent, data in the present embodiment are only a kind of exemplary illustrations, can not be interpreted as restriction of the present invention.
In one embodiment of the invention, also comprise: multiple power supply voltage signal processing module, arrange with multiple power module one_to_one corresponding.One end of each power supply voltage signal processing module connects with the node between the corresponding power module that arranges and sensor, and the other end is connected with single-chip microcomputer.Each supply voltage processing module comprises filtering and/or division module, and the output voltage for the power module arranged correspondence carries out dividing potential drop and/or filtering.
In one embodiment of the invention, also comprise: multiple sensor voltage signal acquisition module, arrange with multiple sensor one_to_one corresponding.One end of each sensor voltage signal acquisition module connects with the corresponding sensor arranged, and the other end is connected with single-chip microcomputer.Each sensor voltage signal acquisition module comprises filtering and/or division module, and the output voltage for the sensor arranged correspondence carries out filtering and/or dividing potential drop.
The embodiment of the invention also discloses a kind of vehicle, comprise above-mentioned vehicle sensors fault detection system.
In addition, the control detection system of the vehicle sensors of the embodiment of the present invention and other of vehicle with it forms and effect is all known for a person skilled in the art, in order to reduce redundancy, does not repeat.
In the description of this instructions, specific features, structure, material or feature that the description of reference term " embodiment ", " some embodiments ", " example ", " concrete example " or " some examples " etc. means to describe in conjunction with this embodiment or example are contained at least one embodiment of the present invention or example.In this manual, identical embodiment or example are not necessarily referred to the schematic representation of above-mentioned term.And the specific features of description, structure, material or feature can combine in an appropriate manner in any one or more embodiment or example.
Although illustrate and describe embodiments of the invention, those having ordinary skill in the art will appreciate that: can carry out multiple change, amendment, replacement and modification to these embodiments when not departing from principle of the present invention and aim, scope of the present invention is by claim and equivalency thereof.
Claims (7)
1. a control detection system for vehicle sensors, is characterized in that, comprising:
Multiple power module, is arranged with the multiple sensor one_to_one corresponding on automobile, and the sensor arranged for correspondence is powered separately, and described multiple power module is provided with the first enable signal receiving interface;
Single-chip microcomputer, described single-chip microcomputer comprises:
Multiple first enable signal transmission interface, arranging with described multiple first enable signal receiving port one_to_one corresponding, for sending the first enable signal to the receiver port of described multiple power module, starting corresponding power module;
Multiple power supply voltage signal receiving port, is arranged with described multiple power module one_to_one corresponding, and described multiple power supply voltage signal receiving port is used for the output voltage gathering described multiple power module respectively;
Multiple sensor voltage signal receiving port, is arranged with described multiple sensor one_to_one corresponding, and described multiple sensor voltage signal receiving port is used for the voltage gathering described multiple sensor respectively;
Wherein, described single-chip microcomputer is used for judging whether corresponding power module breaks down according to the output voltage of each power module, and described single-chip microcomputer is also for judging according to the output voltage of each sensor whether corresponding sensor breaks down.
2. the control detection system of vehicle sensors according to claim 1, is characterized in that, also comprise:
Vehicle battery;
Switch, described switch is connected with described single-chip microcomputer, described vehicle battery, and the drive singal according to described single-chip microcomputer is turned on or off; And
Power module general supply, described power module general supply is connected by described switch with described vehicle battery, and the other end is connected with described multiple power module respectively; Described power module general supply is used for powering to described multiple power module.
3. the control detection system of vehicle sensors according to claim 2, is characterized in that, described multiple power module is the power module possessing voltage conversion function.
4. the control detection system of vehicle sensors according to claim 1, is characterized in that, also comprise:
Multiple voltage signal processing module, is arranged with described multiple power module one_to_one corresponding, and described multiple voltage signal processing module is used for carrying out filtering process to respective sensor operating voltage respectively.
5. the control detection system of vehicle sensors according to claim 1, is characterized in that, also comprise:
Multiple signal acquisition module, is arranged with described multiple sensor one_to_one corresponding, and described multiple signal acquisition module is used for carrying out filtering process to the output voltage signal of the described multiple sensor of correspondence respectively.
6. the control detection system of vehicle sensors according to claim 2, is characterized in that, described switch is triode or metal-oxide-semiconductor.
7. a vehicle, is characterized in that, comprises the control detection system of the arbitrary described vehicle sensors of claim 1-6.
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| CN201510726829.4A CN105258953B (en) | 2015-10-30 | 2015-10-30 | The control detecting system of vehicle sensors and there is its vehicle |
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| CN106533843A (en) * | 2016-12-23 | 2017-03-22 | 江苏中利电子信息科技有限公司 | Detection platform for intelligent ad-hoc network data terminal communication base station |
| CN109144091A (en) * | 2018-11-06 | 2019-01-04 | 广州极飞科技有限公司 | A kind of flight controller and unmanned vehicle |
| CN109405867A (en) * | 2018-09-30 | 2019-03-01 | 科大讯飞股份有限公司 | The sensor detection control method and system of mobile robot |
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| CN111381577A (en) * | 2018-12-29 | 2020-07-07 | 北京宝沃汽车有限公司 | Method, device, controller and vehicle for diagnosing faults |
| CN111959418A (en) * | 2020-10-21 | 2020-11-20 | 蘑菇车联信息科技有限公司 | Vehicle signal detection circuit, signal detection device and vehicle |
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