CN205374042U

CN205374042U - Accelerate measuring device based on TPMS vehicle

Info

Publication number: CN205374042U
Application number: CN201521017958.8U
Authority: CN
Inventors: 陈平; 胡扬俭
Original assignee: Huizhou Internet Of Things Microelectronic Co Ltd
Current assignee: Huizhou Internet Of Things Microelectronic Co Ltd
Priority date: 2015-12-09
Filing date: 2015-12-09
Publication date: 2016-07-06
Anticipated expiration: 2025-12-09

Abstract

The utility model relates to a vehicle operation data detection technical field. The utility model discloses an accelerate measuring device based on TPMS vehicle, include and read module and TPMS module with the speed of vehicle velocity data connection, wherein the TPMS module includes and is used for confirming the acceleration sensor of vehicle motion state and quickens the time -recorder to and according to the acceleration sensor and the calculation module of time -recorder counting vehicle speed with higher speed, the vehicle velocity who obtains in reading the module from speed is greater than at 0 o'clock, the instant acceleration of acceleration sensor output vehicle, and trigger the time -recorder work of quickening, calculation module follow speed reads velocity information and acceleration time -recorder counting time acquisition expedited data that the module read. Owing to the user can need not measure the vehicle through outside special equipment and actually accelerate the dependence ability when know vehicle acceleration performance through the driving, the user can detect the associated data at any time, improves vehicle operation's enjoyment.

Description

Speed measuring device is added based on TPMS vehicle

Technical field

This utility model relates to vehicle operation data detection technique field, adds speed measuring device particularly to one based on TPMS vehicle.

Background technology

Current vehicle is accelerated measurement and cannot be realized by self built-in module, for general user it should be understood that during the acceleration of vehicle, it usually needs realized by outside professional equipment.The understanding of the correlated performance of vehicle is substantially derived from the data that vehicle business men provides by user, and user cannot understand vehicle true correlation energy difficulty easily intuitively.

Summary of the invention

This utility model, mainly solving the technical problems that provide a kind of vehicle based on TPMS to add speed measuring device, should add speed measuring device based on the vehicle of TPMS and can facilitate intuitively understanding vehicle actual acceleration correlated performance.

In order to solve the problems referred to above, this utility model provides one to add speed measuring device based on TPMS vehicle, add speed measuring device based on TPMS vehicle to include: the speed read module being connected with vehicle speed data and TPMS module, wherein said TPMS module includes the acceleration transducer for determining state of motion of vehicle and acceleration, and the computing module of car speed is calculated according to acceleration transducer and acceleration, when the car speed obtained from speed read module is more than 0, acceleration transducer output vehicle instantaneous acceleration, and trigger acceleration work, speed data and acceleration timing time that described computing module reads from speed read module obtain acceleration data.

Saying further, when TPMS module detects that automobile instantaneous velocity accelerates to preset value in more than or equal to TPMS module, TPMS module exports and shows that car speed is from 0 to preset value required time.

Saying further, described car speed read module includes OBD module.

This utility model adds speed measuring device based on TPMS vehicle, including the speed read module being connected with vehicle speed data and TPMS module, wherein said TPMS module includes the acceleration transducer for determining state of motion of vehicle and acceleration, and the computing module of car speed is calculated according to acceleration transducer and acceleration, when the car speed obtained from speed read module is more than 0, acceleration transducer output vehicle instantaneous acceleration, and trigger acceleration work, speed data and acceleration timing time that described computing module reads from speed read module obtain acceleration data.Owing to user can when passing through to drive understanding vehicle accelerating ability energy, it is not necessary to measuring vehicle actual acceleration correlated performance by external professional equipment, user can detect related data at any time, improves the enjoyment of vehicle drive.

Accompanying drawing explanation

In order to be illustrated more clearly that this utility model embodiment or technical scheme of the prior art, the accompanying drawing used required in embodiment or description of the prior art will be briefly described below, apparently, and the accompanying drawing in describing is embodiments more of the present utility model, to those skilled in the art, under the premise not paying creative work, it is also possible to obtain other accompanying drawings according to these accompanying drawings.

Fig. 1 is based on the vehicle of TPMS and adds speed measuring device embodiment electrical principle block diagram.

Below in conjunction with embodiment, and with reference to accompanying drawing, the realization of this utility model purpose, functional characteristics and advantage are described further.

Detailed description of the invention

In order to make to want the purpose of utility model, technical scheme and advantage clearly, below in conjunction with the accompanying drawing in this utility model embodiment, technical scheme in this utility model embodiment is clearly and completely described, obviously, described embodiment is a part of embodiment of utility model, rather than whole embodiments.Based on the embodiment in this utility model, the every other embodiment that those of ordinary skill in the art obtain under the premise not making creative work, broadly fall into the scope of this utility model protection.

As it is shown in figure 1, a kind of vehicle based on TPMS of this utility model adds speed measuring device embodiment.

Speed measuring device should be added based on the vehicle of TPMS to include: the TPMS module 2 being connected with car speed read module 1, and also include the timer 3 being located at TPMS module, acceleration transducer 4, computing module 5, and displayed by the display in TPMS module.

Specifically, described TPMS (TirePressureMonitoringSystem, tire pressure monitoring system) module is used for monitoring vehicle tire pressure data.Described TPMS module includes the acceleration transducer 22 for determining state of motion of vehicle and acceleration 21, and the computing module 23 of car speed is calculated according to acceleration transducer 22 and acceleration 21, when the car speed obtained from speed read module is more than 0, acceleration transducer output vehicle instantaneous acceleration, and triggering acceleration work, speed data and acceleration timing time that described computing module reads from speed read module obtain acceleration data.Described car speed read module 1 includes for reading vehicle speed information in vehicle control device, and this car speed read module includes OBD module.Described computing module 23 can adopt software to realize, it is also possible to is realized by counting circuit.Owing to user can when passing through to drive understanding vehicle accelerating ability energy, it is not necessary to measuring vehicle actual acceleration correlated performance by external professional equipment, user can detect related data at any time, improves the enjoyment of vehicle drive.

Specifically for test hundred kilometers of vehicle accelerate its work process is described.

First arrange to preset in TPMS module 2 and estimate for 100km/h.From the ECU module of vehicle, read instantaneous velocity by described TPMS module 2 by car speed read module 1, from TPMS module 1, obtain the instantaneous velocity time, the time that namely instantaneous velocity is corresponding.

After vehicle ignition being detected, car speed read module 1 from the ECU module of vehicle incessantly from read Vehicle Speed.The automobile's instant velocity that the automobile's instant velocity storage read is read from automobile and time corresponding to the acceleration 21 corresponding with automobile's instant velocity.

When the speed that car speed read module 1 reads is 0, the acceleration 21 in TPMS module 1 is not activated, and the time is 0.TPMS module 1 display speed is 0km/h, and the time is 0 second.

When the speed that car speed read module 1 reads reaches more than 0, now the acceleration 21 in TPMS module 1 starts timing, and to record now speed be V0 and time T0, now time T0 is 0.0 second, computing module 23 obtains acceleration information from the acceleration transducer 22 of TPMS module 1 simultaneously, and then calculate vehicle horizontal acceleration a0 now, calculate and from static to the time of V0 be: t0=V0/a0.Now TPMS module 1 display speed is V0, and the time is t0.Calculating t0 is to reduce timing error, because when speed being detected, vehicle is likely to accelerate a period of time.

Before vehicle continues to accelerate to 100km/h, TPMS module 1 shows the actual speed of vehicle in real time in the process, and time showing is acceleration 21 timing time t0, until 100km/h or more than 100km/h.Such as: t0 is 0.1 second, it be 90km/h, TPMS Timer module timing time is 5.0 seconds that vehicle continues to accelerate to speed, then on TPMS screen, display speed is 90km/h, the computing module calculating acceleration time is 5.0 seconds+01. second=5.1 seconds, and TPMS module 1 displays.

When acceleration 21 timing time just detected in speed V1=100km/h, TPMS module 1 is the T1 second.So computing module 23 just can calculate the hundred kilometers of time accelerated: T=T1+t0.If speed V2 being detected>100km/h, time T2, and front one-time detection V1<100km/h, the time is T1.So computing module 23 calculate hundred kilometers accelerate algorithms be: T=((100 V1)/(V2-V1)) * (T2 T1)+T1+t0.

TPMS module 1 by display vehicle accelerate to 100km/h time time, acceleration 21 stops timing.

When detecting that speed reaches more than 0, remember that now speed is V0 and T0.By the acceleration transducer 22 in TPMS module 1, calculate horizontal acceleration a0 now.From static to the time of V0 it is so: t0=V0/a0.

Vehicle continues to accelerate until 100km/h or more than 100km/h: if speed V1=100 just being detected, the time is T1.So can calculate the hundred kilometers of time accelerated: T=T1+t0.If be detected that speed V2>100km/h, time T2, and front one-time detection V1<100km/h, the time is T1.So calculating hundred kilometers of algorithms accelerated is: T=((100 V1)/(V2-V1)) * (T2 T1)+t0.

Above example only in order to the technical solution of the utility model to be described, is not intended to limit；Although this utility model being described in detail with reference to previous embodiment, it will be understood by those within the art that: the technical scheme described in foregoing embodiments still can be modified by it, or wherein portion of techniques feature is carried out equivalent replacement, and these amendments or replacement, do not make the essence of appropriate technical solution depart from the spirit and scope of each embodiment technical scheme of this utility model.

Claims

1. add speed measuring device based on TPMS vehicle, it is characterized in that, including the speed read module being connected with vehicle speed data and TPMS module, wherein said TPMS module includes the acceleration transducer for determining state of motion of vehicle and acceleration, and the computing module of car speed is calculated according to acceleration transducer and acceleration, when the car speed obtained from speed read module is more than 0, acceleration transducer output vehicle instantaneous acceleration, and trigger acceleration work, speed data and acceleration timing time that described computing module reads from speed read module obtain acceleration data.

2. the vehicle based on TPMS according to claim 1 adds speed measuring device, it is characterised in that described car speed read module includes OBD module.