CN208789658U - Parking brake operates alert circuit - Google Patents

Parking brake operates alert circuit Download PDF

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Publication number
CN208789658U
CN208789658U CN201820799689.2U CN201820799689U CN208789658U CN 208789658 U CN208789658 U CN 208789658U CN 201820799689 U CN201820799689 U CN 201820799689U CN 208789658 U CN208789658 U CN 208789658U
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module
output
handle
car door
detection module
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CN201820799689.2U
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苏华健
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苏华健
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Abstract

A kind of parking brake operation alert circuit, for reminding driver to carry out parking assist handle operation after parked vehicles, comprising: handle detection module, for detecting whether handle corresponding with vehicle parking assist function pulls in place;Car door detection module, it is whether in the open state for detecting the car door of operator seat side of vehicle;Control module, for receiving the detection signal of handle detection module and car door detection module;And auditory tone cues module, control module control auditory tone cues module and generate audio prompt signal according to handle detection module and the detection signal of car door detection module.Detection by handle detection module to handle position, and detection of the car door detection module to the car door of operator seat side, if driver does not pull handle in place, when vehicle will be left by opening car door, control module controls auditory tone cues module and generates audio prompt, so that driver reminded to pull parking assist handle.

Description

Parking brake operates alert circuit
Technical field
The utility model relates to vehicle electric ancillary techniques, operate alert circuit more particularly to a kind of parking brake.
Background technique
To avoid automobile from sliding back and forth when stopping, cause traffic accident and or casualties, generally set on automobile There are auxiliary brake, i.e. parking brake.Generally, when driver's parked vehicles, need to realize the handle pull-up of parking brake function, hand Handle is by steel wire traction brake disc, to realize the function of parking.However, driver may forget to pull in parked vehicles Handle is freely rotated state since wheel is in, leads to vehicle under the effect of gravity after driver leaves vehicle Occur to accelerate sliding, so as to cause the generation of traffic accident.
Utility model content
Based on this, it is necessary to forget to pull handle problem for driver, provide a kind of parking brake operation alert circuit.
A kind of parking brake operation alert circuit, for reminding driver to carry out parking assist handle behaviour after parked vehicles Make, comprising:
Handle detection module, for detecting whether handle corresponding with vehicle parking assist function pulls in place;
Car door detection module, for detecting whether the car door of operator seat side of vehicle is in closed state;
Control module, for receiving the detection signal of the handle detection module and the car door detection module;And
Auditory tone cues module, the control module is according to the detection of the handle detection module and the car door detection module Signal controls the auditory tone cues module and generates audio prompt signal.
Above-mentioned parking brake operates alert circuit, detects mould to the detection of handle position and car door by handle detection module Detection of the block to the car door of operator seat side, if driver does not pull handle in place, when opening car door will leave vehicle It waits, control module controls auditory tone cues module and generates audio prompt, so that driver reminded to pull parking assist handle.
The handle detection module includes the first sensing detection unit and resistance R1 in one of the embodiments,;Institute The first sensing detection unit is stated equipped with the first power input, the first inductive output end and grounding pin;The first sensing inspection It surveys between the first power input and the first inductive output end of unit and connects the resistance R1;The first sensing detection unit The first inductive output end connect the control module.
The car door detection module includes the second sensing detection unit and resistance R2 in one of the embodiments,;Institute The second sensing detection unit is stated equipped with second source input terminal, the second inductive output end and grounding pin;The second sensing inspection It surveys between the second source input terminal and the second inductive output end of unit and connects the resistance R2;The second sensing detection unit The second inductive output end connect the control module.
The control module includes chip U1 in one of the embodiments, and the chip U1 is equipped with the first induction input Pin and the second induction input pin;The first induction input pin of the chip U1 connects the handle detection module;It is described The second induction input pin of chip U1 connects the car door detection module.
The auditory tone cues module includes resistance R3, triode Q1 and buzzer U2 in one of the embodiments,;Institute Chip U1 is stated equipped with acoustic control output pin;Between the control terminal of the triode Q1 and the acoustic control output pin of the chip U1 Connect the resistance R3;The input terminal of the triode Q1 connects power supply;The output end of the triode Q1 connects the buzzing Device U2.
It in one of the embodiments, further include light prompt module;The chip U1 is equipped with light-operated output pin;It is described Light prompt module includes resistance R4 and Light-emitting diode LED 1;The light-operated output pin of the chip U1 and described luminous two The resistance R4 is connected between the anode of pole pipe LED1;The minus earth of the Light-emitting diode LED 1.
It in one of the embodiments, further include energization switching module, the energization switching module controls the hand respectively Handle detection module, the car door detection module, the control module and the auditory tone cues module on/off.
The energization switching module is equipped with power output end in one of the embodiments,;The energization switching module packet Switch S1 is included, the switch S1 is equipped with first input end, the second input terminal, the first output end and second output terminal;The switch The first input end of S1, the second input terminal access external power supply;The first output end of the switch S1 switches mould to the energization The power output end of block exports electric current;The second output terminal of the switch S1 is grounded;The energization switching module is defeated by power supply Outlet exports electricity to the handle detection module, the car door detection module, the control module and the auditory tone cues module Source.
The energization switching module further includes diode D1, resistance R6 and light emitting diode in one of the embodiments, LED2;The anode of the diode D1 connects the first output end of the switch S1;The cathode and the hair of the diode D1 Resistance R6 is connected between the anode of optical diode LED2;The cathode of the diode D1 is also connected with the energization switching module Power output end;The cathode of the Light-emitting diode LED 2 connects the second output terminal of the switch S1;The light emitting diode The cathode of LED2 is also grounded.
It in one of the embodiments, further include Storage Unit;The anode of the Storage Unit connects the energization switching The power output end of module, the second input terminal of the cathode connection switch S1 of Storage Unit.
Detailed description of the invention
Fig. 1 is that the parking brake of a preferred embodiment of the utility model operates the structure chart of alert circuit;
Fig. 2 is the circuit diagram that parking brake shown in FIG. 1 operates alert circuit.
Specific embodiment
The utility model will be described more fully below for the ease of understanding the utility model,.But this is practical It is novel to realize in many different forms, however it is not limited to embodiment described herein.On the contrary, providing these implementations The purpose of example is to make the understanding of the disclosure of the utility model more thorough and comprehensive.
Unless otherwise defined, all technical and scientific terms used herein are led with the technology for belonging to the utility model The normally understood meaning of the technical staff in domain is identical.Terminology used in the description of the utility model herein only be The purpose of description specific embodiment, it is not intended that in limitation the utility model.
Fig. 1 and Fig. 2 is please referred to, is that the parking brake of one better embodiment of the utility model operates alert circuit 100, for mentioning The driver that wakes up carries out parking brake parking operation after parked vehicles.The parking brake operates alert circuit 100
Handle detection module 10, for detecting whether handle corresponding with vehicle parking assist function pulls in place;
Car door detection module 20, for detecting whether the car door of operator seat side of vehicle is in closed state;
Control module 30, for receiving the detection signal of handle detection module 10 and car door detection module 20;And
Auditory tone cues module 40, control module 30 are believed according to the detection of handle detection module 10 and car door detection module 20 Number, control auditory tone cues module 40 generates audio prompt signal.
By handle detection module 10 to the detection of handle position and car door detection module 20 to the car door of operator seat side Detection, if driver not by handle pull in place, open car door will leave vehicle when, 30 control sound of control module Sound cue module 40 generates audio prompt, so that driver reminded to pull parking assist handle.
Specifically, handle detection module 10 includes the first sensing detection unit 11 and resistance R1;First sensing detection unit 11 are equipped with the first power input, the first inductive output end and grounding pin;First power supply of the first sensing detection unit 11 is defeated Enter and connects resistance R1 between end and the first inductive output end;First inductive output end of the first sensing detection unit 11 connects control Module 30.
First sensing detection unit 11 is equipped with the first infrared emission mouth and the first infrared receiver mouth side by side;First is infrared It is corresponding that emission port completes the position after pulling with handle;After handle pulls in place, the infrared light of the first infrared emission mouth sending Line passes through the handle in predetermined position and reflects;When the first infrared receiver mouth receives reflected infrared light, first is passed Feel detection unit 11 and first inductive signal is exported to control module 30 by the first inductive output end;Control module 30 is according to hand The first inductive signal that handle detection module 10 is issued determines whether handle pulls in place.
Car door detection module 20 includes the second sensing detection unit 21 and resistance R2;Second sensing detection unit 21 is equipped with Second source input terminal, the second inductive output end and grounding pin;The second source input terminal of second sensing detection unit 21 Resistance R2 is connected between the second inductive output end;The second inductive output end connection control mould of second sensing detection unit 21 Block 30.
Second sensing detection unit 21 is equipped with the second infrared emission mouth and the second infrared receiver mouth side by side;Second is infrared Emission port is arranged near the door frame of operator seat side or is arranged on the car door of operator seat, it is preferable that the second infrared emission mouth It is arranged at the air-conditioner air outlet on the left of operator seat;After the door closing of operator seat side, the second infrared emission mouth is issued red UV light is reflected through door frame or car door;When the second infrared receiver mouth receives reflected infrared light, the second sensing Detection unit 21 exports the second inductive signal to control module 30 by the second inductive output end;Control module 30 is examined according to car door It surveys the second inductive signal that module 20 is issued and determines whether the car door of operator seat side is closed.
Control module 30 includes chip U1, and chip U1 is equipped with the first induction input pin and the second induction input pin;Core The first induction input pin of piece U1 connects handle detection module 10;The second induction input pin connection car door detection of chip U1 Module 20.
Specifically, the first induction input pin of chip U1 connects the first inductive output of the first sensing detection unit 11 End, to receive the first inductive signal;The second induction input pin of chip U1 connects the second sense of the second sensing detection unit 21 Output end is answered, to receive the second inductive signal.
Auditory tone cues module 40 includes resistance R3, triode Q1 and buzzer U2;Chip U1 is equipped with acoustic control output pin; Resistance R3 is connected between the control terminal of triode Q1 and the acoustic control output pin of chip U1;The input terminal of triode Q1 connects electricity Source;The output end of triode Q1 connects buzzer U2.
When chip U1 determines that handle not yet operates in place and operator seat side according to the first inductive signal and the second inductive signal Car door opening when, chip U1 by acoustic control output pin control triode Q1 conducting, thus make buzzer U2 be powered, generate sound Frequency prompts.
Further, it is realization under the larger environment of noise, is not yet drawn in place using light prompt driver handle, It further includes light prompt module 50 that parking brake, which operates alert circuit 100,;Chip U1 is equipped with light-operated output pin;Light prompt module 50 Including resistance R4 and Light-emitting diode LED 1;Connect between the light-operated output pin of chip U1 and the anode of Light-emitting diode LED 1 Connecting resistance R4;The minus earth of Light-emitting diode LED 1.
While chip U1 driving buzzer U2 is powered, chip U1 is by light-operated output pin to Light-emitting diode LED 1 Electric current is exported, so that Light-emitting diode LED 1 be made to generate light prompt.
Further, the connection or disjunction between control and Vehicular direct-current power supply, control parking brake operate alert circuit 100 It further include energization switching module 60, energization switching module 60 controls handle detection module 10, car door detection module 20, control respectively The on/off of module 30 and auditory tone cues module 40.
Energization switching module 60 is equipped with power output end;Energization switching module 60 includes switch S1, and switch S1 is equipped with first Input terminal, the second input terminal, the first output end and second output terminal;The first input end of switch S1, the access of the second input terminal are outer Portion's power supply;The first output end of switch S1 exports electric current to the power output end of energization switching module 60;The second of switch S1 is defeated Outlet ground connection;Energization switching module 60 passes through power output end to handle detection module 10, car door detection module 20, control module 30 and 40 out-put supply of auditory tone cues module.
Specifically, since chip U1 is equipped with reset pin and power input pin, for the reset pin for avoiding chip U1 Lead to error running because of misconnection low level, control module 30 further includes resistance R5, and the reset pin and power supply on chip U1 are defeated Enter connection resistance R5 between pin;The power output end of the power input pin connection energization switching module 60 of chip U1.
Further, confirm whether parking brake operation alert circuit 100 is in energization operating status for convenience of driver, lead to Electric switching module 60 further includes diode D1, resistance R6 and Light-emitting diode LED 2;The anode connection switch S1's of diode D1 First output end;Resistance R6 is connected between the cathode of diode D1 and the anode of Light-emitting diode LED 2;The cathode of diode D1 It is also connected with the power output end of energization switching module 60;The second output terminal of the cathode connection switch S1 of Light-emitting diode LED 2; The cathode of Light-emitting diode LED 2 is also grounded.
For when Vehicular direct-current power supply stops exporting, parking brake operation alert circuit 100 can work on a period of time, parking brake Operating alert circuit 100 further includes Storage Unit 70;The power supply output of the anode connection energization switching module 60 of Storage Unit 70 End, the second input terminal of the cathode connection switch S1 of Storage Unit 70.
Specifically, Storage Unit 70 is super capacitor;In other embodiments, Storage Unit 70 is battery.It is powered Switching module 60 further includes diode D2;Diode D2 is in parallel with diode D1, to promote the charging voltage of Storage Unit 70, together When avoid electric current from flowing backward.
When pressing lower switch S1, first input end and the first output end are connected, and the second input terminal and second output terminal are connected, Make handle detection module 10, car door detection module 20, control module 30, auditory tone cues module 40 and Storage Unit 70 are switched to Vehicular direct-current power supply;When the normal out-put supply of Vehicular direct-current power supply, Storage Unit 70 is filled by diode D1, diode D2 Electricity, meanwhile, Light-emitting diode LED 1 issues pilot light, is run with indicating that parking brake operation alert circuit 100 is just powered;When vehicle-mounted When DC power supply stops out-put supply, if switch S1 is held on, under the power output of Storage Unit 70, parking brake operation is mentioned Circuit 100 of waking up continues to run;Under the action of diode D1, diode D2, avoids Storage Unit 70 and pass through external circuit Electric discharge;When Vehicular direct-current power supply stops out-put supply, if switch S1 disjunction, the power output for cutting off Storage Unit 70 is returned Road keeps parking brake operation alert circuit 100 out of service.
In the present embodiment, by handle detection module to the detection of handle position and car door detection module to driver's seat Car door detection, if driver not by handle pull in place, open car door will leave vehicle when, control module control Auditory tone cues module processed generates audio prompt, so that driver reminded to pull parking assist handle.
Each technical characteristic of embodiment described above can be combined arbitrarily, for simplicity of description, not to above-mentioned reality It applies all possible combination of each technical characteristic in example to be all described, as long as however, the combination of these technical characteristics is not deposited In contradiction, all should be considered as described in this specification.
Above-described embodiments merely represent several embodiments of the utility model, the description thereof is more specific and detailed, But it cannot be understood as the limitations to utility model patent range.It should be pointed out that for the common skill of this field For art personnel, without departing from the concept of the premise utility, various modifications and improvements can be made, these are belonged to The protection scope of the utility model.Therefore, the scope of protection shall be subject to the appended claims for the utility model patent.

Claims (10)

1. a kind of parking brake operates alert circuit, for reminding driver to carry out parking assist handle operation after parked vehicles, It is characterised by comprising:
Handle detection module, for detecting whether handle corresponding with vehicle parking assist function pulls in place;
Car door detection module, for detecting whether the car door of operator seat side of vehicle is in closed state;
Control module, for receiving the detection signal of the handle detection module and the car door detection module;And
Auditory tone cues module, the control module are believed according to the detection of the handle detection module and the car door detection module Number, it controls the auditory tone cues module and generates audio prompt signal.
2. parking brake according to claim 1 operates alert circuit, which is characterized in that the handle detection module includes first Sensing detection unit and resistance R1;The first sensing detection unit be equipped with the first power input, the first inductive output end, And grounding pin;The electricity is connected between first power input of the first sensing detection unit and the first inductive output end Hinder R1;First inductive output end of the first sensing detection unit connects the control module.
3. parking brake according to claim 1 operates alert circuit, which is characterized in that the car door detection module includes second Sensing detection unit and resistance R2;The second sensing detection unit be equipped with second source input terminal, the second inductive output end, And grounding pin;The electricity is connected between the second source input terminal of the second sensing detection unit and the second inductive output end Hinder R2;Second inductive output end of the second sensing detection unit connects the control module.
4. parking brake according to claim 1 operates alert circuit, which is characterized in that the control module includes chip U1, The chip U1 is equipped with the first induction input pin and the second induction input pin;The first induction input of the chip U1 is drawn Foot connects the handle detection module;The second induction input pin of the chip U1 connects the car door detection module.
5. parking brake according to claim 4 operates alert circuit, which is characterized in that the auditory tone cues module includes resistance R3, triode Q1 and buzzer U2;The chip U1 is equipped with acoustic control output pin;The control terminal of the triode Q1 with it is described The resistance R3 is connected between the acoustic control output pin of chip U1;The input terminal of the triode Q1 connects power supply;Three pole The output end of pipe Q1 connects the buzzer U2.
6. parking brake according to claim 4 operates alert circuit, which is characterized in that further include light prompt module;It is described Chip U1 is equipped with light-operated output pin;The light prompt module includes resistance R4 and Light-emitting diode LED 1;The chip U1 Light-operated output pin and the Light-emitting diode LED 1 anode between connect the resistance R4;The Light-emitting diode LED 1 Minus earth.
7. parking brake according to claim 1 operates alert circuit, which is characterized in that it further include energization switching module, it is described Energization switching module controls the handle detection module, the car door detection module, the control module and the sound respectively The on/off of cue module.
8. parking brake according to claim 7 operates alert circuit, which is characterized in that the energization switching module is equipped with power supply Output end;The energization switching module includes switch S1, and the switch S1 is equipped with first input end, the second input terminal, first defeated Outlet and second output terminal;First input end, the second input terminal of the switch S1 accesses external power supply;The switch S1's First output end exports electric current to the power output end of the energization switching module;The second output terminal of the switch S1 is grounded; The energization switching module passes through power output end to the handle detection module, the car door detection module, the control mould Block and the auditory tone cues module out-put supply.
9. parking brake according to claim 8 operates alert circuit, which is characterized in that the energization switching module further includes two Pole pipe D1, resistance R6 and Light-emitting diode LED 2;The anode of the diode D1 connects the first output end of the switch S1; Resistance R6 is connected between the cathode of the diode D1 and the anode of the Light-emitting diode LED 2;The cathode of the diode D1 It is also connected with the power output end of the energization switching module;The cathode of the Light-emitting diode LED 2 connects the of the switch S1 Two output ends;The cathode of the Light-emitting diode LED 2 is also grounded.
10. parking brake according to claim 8 operates alert circuit, which is characterized in that further include Storage Unit;The accumulation of energy The anode of unit connects the power output end of the energization switching module, the second input of the cathode connection switch S1 of Storage Unit End.
CN201820799689.2U 2018-05-25 2018-05-25 Parking brake operates alert circuit Active CN208789658U (en)

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CN201820799689.2U CN208789658U (en) 2018-05-25 2018-05-25 Parking brake operates alert circuit

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Application Number Priority Date Filing Date Title
CN201820799689.2U CN208789658U (en) 2018-05-25 2018-05-25 Parking brake operates alert circuit

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110126804A (en) * 2019-06-21 2019-08-16 谢正春 A kind of vehicle parking brake alarm set

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110126804A (en) * 2019-06-21 2019-08-16 谢正春 A kind of vehicle parking brake alarm set

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