CN103192685B

CN103192685B - A kind of automatic shut control method of vehicle dormer window and interface matched circuit thereof

Info

Publication number: CN103192685B
Application number: CN201310094793.3A
Authority: CN
Inventors: 赵保军; 陈飞; 李建才
Original assignee: SAIC Chery Automobile Co Ltd
Current assignee: Chery Automobile Co Ltd
Priority date: 2013-03-22
Filing date: 2013-03-22
Publication date: 2015-08-12
Anticipated expiration: 2033-03-22
Also published as: CN103192685A

Abstract

The present invention relates to a kind of automatic shut control method and interface matched circuit thereof of vehicle dormer window, adopt following steps: when vehicle is in by armed state, Body control module BCM is unsettled about the PIN of sky window signal; When in skylight module monitors to step (1) during this PIN low level, skylight is closed automatically, and keeps vacant state always; When car key state gets to ON or ACC, Body control module BCM is high level about the PIN of sky window signal, and now key status changes to OFF from ACC, ON, then this PIN keeps high level state always.BCM is used to control the pin of the automatic closedown of roof module, simulate the low and high level of control end, BCM hardware design circuit uses resistance to mate the interface current in skylight, the consumption of quiescent current can be regulated according to actual needs, thus make electric current reach optimized object, have convenient and practical, the advantage of low-power consumption.

Description

A kind of automatic shut control method of vehicle dormer window and interface matched circuit thereof

Technical field

The present invention relates to vehicle electric field, control for body electrical function, be specifically related to a kind of automatic shut control method and interface matched circuit thereof of vehicle dormer window.

Background technology

A PIN of skylight control module enable roof module can perform the closing function of skylight motor, and we utilize the state of this PIN controlling roof module to realize the automatic closing function in skylight; Traditional skylight can only manually be gone to close, the control pin of the function not using the automatic closedown of this PIN or the automatic closedown that make use of skylight control module, when pulling key, detected by the change of the low and high level of KEY IN signal, realize the automatic closing function in skylight.PEPS vehicle is the device entering startup without key, does not just need the correlation function of ignition lock, and then does not have the signal source of KEY IN, and our invention for departure point, realizes the automatic closing function in skylight with this problem.

Summary of the invention

The object of the present invention is to provide a kind of automatic shut control method and interface matched circuit thereof of vehicle dormer window, realize the automatic closing function in skylight, avoid because user is because the trouble that manual-lock skylight is brought is forgotten in carelessness; Solve and enter without key at PEPS() in vehicle because the irrealizable puzzlement of skylight automatic closing function not having KEY IN signal to bring.

1., when vehicle is set up defences time, the PIN of BCM days window signals is unsettled (GND), and time roof module monitors this PIN low level, skylight is closed automatically, and keeps this state unsettled always.2., when key status gets to ON or ACC, the PIN of BCM days window signals is high level, and now key status changes to OFF from ACC, ON, and this PIN ensures high level state always; Now roof module monitors this PIN is high level, and skylight can not be closed after opening automatically;

Concrete technical scheme is as follows:

An automatic shut control method for vehicle dormer window, adopts following steps:

(1) when vehicle is in by armed state, Body control module BCM is unsettled about the PIN of sky window signal;

(2) when in skylight module monitors to step (1) during this PIN low level, skylight is closed automatically, and keeps vacant state always;

(3) when car key state gets to ON or ACC, Body control module BCM is high level about the PIN of sky window signal, and now key status changes to OFF from ACC, ON, then this PIN keeps high level state always.

Further, when being in the state of step (3), it is high level that roof module monitors this PIN, and skylight can not be closed after opening automatically.

Further, when vehicle is in by driving condition, or key gear is in ACC state, and now skylight can be opened.

Further, when vehicle is in dead ship condition, or when key status is switched to OFF gear, skylight keeps original state.

Further, when vehicle is in dead ship condition, or when key status is switched to OFF gear, skylight be originally open be then still in open mode.

Further, when 4 car doors of vehicle, front Cang Gai, boot are in closed condition, key, in OFF state, when car load meets the condition of setting up defences, presses romote controlled locking button, and while 4 car doors are locked, skylight is also closed automatically.

Further, Body control module BCM controls the pin of the automatic closedown of roof module, and the low and high level of analogue enlargement end.

Further, BCM hardware design circuit uses resistance to mate the interface current in skylight, and regulates the consumption of quiescent current according to actual needs.

The interface matched circuit of the automatic shut control method of above-mentioned vehicle dormer window, further, comprise BCM internal interface circuit and skylight control module internal interface circuit, wherein, BCM internal interface circuit comprises SUNROOF OUT_BCMMCU signal and SUNROOFOUT mouth, SUNROOFOUT_BCMMCU signal is the main control chip control signal of BCM, when this signal is low level time, SUNROOFOUT mouth is that vacant state skylight control module thinks low level, and realizes the automatic closedown in skylight.

Compared with currently available technology, the present invention uses BCM to control the pin of the automatic closedown of roof module, simulate the low and high level of control end, BCM hardware design circuit uses resistance to mate the interface current in skylight, the consumption of quiescent current can be regulated according to actual needs, thus make electric current reach optimized object, have convenient and practical.The advantage of low-power consumption.

Accompanying drawing explanation

Fig. 1 realizes the BCM of the application's function and the interface matched circuit of inside, skylight.

Detailed description of the invention

Describe the present invention with reference to the accompanying drawings below, it is a kind of preferred embodiment in numerous embodiments of the present invention.

With reference to Fig. 1, SUNROOF OUT_BCMMCU signal is that the main control chip of BCM controls, when this signal is low level time, Q1 not conducting, SUNROOFOUT mouth is vacant state, because the R6 of skylight control module is drop-down, roof module thinks low level, and then realizes the automatic closedown in skylight;

When SUNROOF OUT_BCMMCU is high level time, what now Q1 met aerotron opens condition, emitter-base diode positively biased, junction electrode is reverse-biased, and because the reason of pull-up R2 is operated in saturation region, and then Q3 conducting, impedance due to skylight interface circuit determines the size of outgoing current, R2 determines the size of base current, be not difficult to analyze Q3 and be also operated in saturation region, pass through circuit counting, the quiescent current of circuitry consumes is divided into 2 grades, the first order is the input of Q1, the second stage is the input of Q3, Q2 normal working as protective tube is not conducting, total current draw is at 0.7mA, quiescent current is still lower, has the feature of low-power consumption, and can carry out regulating circuit according to the input impedance in different skylight, has practical feature.

User when driving or key gear in ACC state, now can open skylight heartily as required, enjoy the aesthetic feeling controlled, have a rest in parking, when key status is switched to OFF gear, skylight can keep original state, skylight be originally open be still in open mode.

When 4, front Cang Gai, boot be closed condition, key, in OFF state, when car load meets the condition of setting up defences, by romote controlled locking button, also can close skylight automatically, bring convenience as snug as a bug in a rug while door is locked.

Advantage is as follows: 1. the consumption that can regulate quiescent current according to actual needs, thus makes electric current reach optimized object, the advantage of low-power consumption.

2. user skylight when setting up defences is closed automatically, has the feature of ease of use, avoids user and sets up defences and come back to vehicle when car locking is forgotten and closed skylight and close the inconvenience in skylight, have very strong practicality.

Above by reference to the accompanying drawings to invention has been exemplary description; obvious specific implementation of the present invention is not subject to the restrictions described above; as long as have employed the various improvement that method of the present invention is conceived and technical scheme is carried out; or directly apply to other occasion, all within protection scope of the present invention without improving.

Claims

1. the automatic shut control method of a vehicle dormer window, it is characterized in that, adopt interface matched circuit, it comprises BCM internal interface circuit and skylight control module internal interface circuit, wherein, BCM internal interface circuit comprises SUNROOFOUT_BCMMCU signal and SUNROOFOUT mouth, SUNROOFOUT_BCMMCU signal is the main control chip control signal of BCM, when this signal is low level time, SUNROOFOUT mouth is that vacant state skylight control module thinks low level, and realizes the automatic closedown in skylight; Adopt following algorithm: when vehicle is in by driving condition, or key gear is in ACC state, now skylight can be opened; When vehicle is in dead ship condition, or when key status is switched to OFF gear, skylight keeps original state; When vehicle is in dead ship condition, or when key status is switched to OFF gear, skylight be originally open be then still in open mode; When vehicle is in by armed state, Body control module BCM is unsettled about the PIN of sky window signal; When skylight module monitors is to described PIN low level, skylight is closed automatically, and keeps vacant state always; When car key state gets to ON or ACC, Body control module BCM is high level about the PIN of sky window signal, and now key status changes to OFF from ACC, ON, then this PIN keeps high level state always.