CN202451279U - Device for reminding potential safety hazard inspection before driving - Google Patents
Device for reminding potential safety hazard inspection before driving Download PDFInfo
- Publication number
- CN202451279U CN202451279U CN2012200149972U CN201220014997U CN202451279U CN 202451279 U CN202451279 U CN 202451279U CN 2012200149972 U CN2012200149972 U CN 2012200149972U CN 201220014997 U CN201220014997 U CN 201220014997U CN 202451279 U CN202451279 U CN 202451279U
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- relay
- engine ecu
- coil
- potential safety
- safety hazard
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Abstract
The utility model provides a device for reminding potential safety hazard inspection before driving, and belongs to the technical field of automotive electronics. The device solves the problem that potential safety hazard inspection before driving is easily forgotten by drivers in the prior art. The device comprises an engine electronic control unit (ECU); a first relay, a second relay and a warning lamp are respectively connected onto the engine ECU, a coil of the second relay and a normally open switch of the first relay are connected in series and grounded, a switch contact of the second relay is connected with an oil pump and grounded, the oil pump is connected in series with a storage battery through a normally open switch of the second relay, the coil of the second relay is connected with an output interface of the engine ECU, an input interface of the engine ECU is connected with a coil of the first relay, and the input interface and the output interface of the engine ECU are connected in series through the coil of the first relay to form a control circuit which is connected in series with a manual switch. According to the device for reminding potential safety hazard inspection before driving, an engine starting step is added for reminding drivers to inspect potential safety hazards before driving.
Description
Technical field
The utility model belongs to technical field of automotive electronics, relates to the preceding potential safety hazard inspection of a kind of vehicle driving alarm set.
Background technique
Along with growth in the living standard, the vehicle of travels down is more and more, and environment becomes and becomes increasingly complex.The safety first step of the driving preceding scrutiny that is to drive a vehicle will not cause the potential safety hazard in the driving if do not form the custom of pre-trip inspection.Do not have the surrounding environment of scrutiny vehicle as requested, get rid of possible potential safety hazard, the startup car of directly getting on the bus, because sight line is limited, near the people (especially child) car of wounding easily causes other people to injure even traffic accident such as death.In addition, present robber's car incident also frequently takes place, and particularly those low end vehicle have been installed some anti-theft devices, and anti-theft measure is lower, and for cartheft, still very simple just can car be stolen caused car owner's property loss.Safety inspection before the driving is the preventive measure of support vehicles driving safety; It is the positive behave of eliminating potential safety hazard; How can make the driver effectively form safety inspection custom before the good driving, can strengthening cartheft again, to steal the difficulty of vehicle be the difficult problem of pendulum in face of the Vehicle Engineering personnel.
When existing vehicle reached KEY ON position at key, the oil pump circuit will conducting, and at this moment oil pump can be worked, and carries out several seconds the oil that holds, and was to start to prepare certain oil pressure; , key begins ato unit when forwarding the START position to.The inspection work of potential safety hazard before direct start-up mode like this lets the driver forget driving a vehicle easily.
The electronic device of the existing technology that the utility model is involved is explained as follows:
Engine ECU is the Motronic control maps control module, has continuous monitoring and controls the function that the motor proper functioning turns round.ECU according to the input data test of each road sensor with calculate the required air and the degrees of ignition advance of motor when that mixes of fuel oil, ECU directly controlling motor under various operating modes other accessory system working state of fuel supply volume, fuel injection correct time, high voltage ignition correct time, ignition closed angle, engine idle rotating speed and vehicle.
Summary of the invention
There are the problems referred to above in the utility model to existing technology, has proposed the preceding potential safety hazard inspection of a kind of vehicle driving alarm set, potential safety hazard inspection before this device reminds the driver to drive a vehicle through increase engine start step.
The utility model is realized through following technical proposal: potential safety hazard inspection alarm set before a kind of vehicle driving; Comprise Engine ECU; It is characterized in that; Be connected with first relay, second relay and warning light on the described Engine ECU respectively; The normal open switch series connection and the ground connection of the coil of described second relay and first relay, the switch contact of described second relay connects oil pump and ground connection, and oil pump and storage battery are connected in series through the normal open switch of second relay; The coil of described second relay connects the output interface of Engine ECU; The input interface of said Engine ECU connects the coil of first relay, and the input interface of said Engine ECU is connected through the coil of first relay with the Engine ECU output interface and formed control loop, is connected in series with hand switch on the described control loop; Described hand switch is used to control the break-make of the connecting circuit of the motor output interface and second relay coil, and described Engine ECU is used for that output current makes second relay for the coil of second relay when hand switch is closed after receiving car key to reach KEY ON position signal normally opened contact is closed to start oil pump work.
When the driver directly reaches KEY ON position signal to car key; The not closed then coil circuit of second relay of hand switch does not have conducting; There is not the hand switch control signal to give Engine ECU yet; Engine ECU is supplied power to warning light, and warning light is checked potential safety hazard before lighting the prompting driver drives vehicle; After the driver checks out potential safety hazard; Closed hand switch; When reaching KEY ON position signal to car key once more; Because the conducting simultaneously of the coil of first relay and second relay makes the switch contact of the win relay and second relay closed, realizes the power supply of storage battery oil feed pump, connect also for simultaneously a control signal oil feed pump of Engine ECU circuit.Make the driver form safety inspection custom before the good driving through increasing hand switch ato unit step.
In the potential safety hazard inspection alarm set, the coil input end of the input end of described control loop and second relay is connected in parallel and is connected in the Engine ECU output interface before above-mentioned vehicle driving.Here the input end of the input end of control loop and second relay is connected in same Engine ECU output interface, when guaranteeing this Engine ECU output interface output current under the situation of control loop conducting the oil pump line conduction.The break-make of oil pump circuit is controlled by hand switch directly except that receiving the automobile key switch SC sigmal control.
Second kind of scheme as embodiment; Potential safety hazard is checked in the alarm set before above-mentioned vehicle driving; The input end of described control loop is connected in the Engine ECU output interface, and the coil of described second relay is connected in another Engine ECU output interface that is different from the Engine ECU output interface that connects on the control loop.The input end of this control circuit and second relay coil is connected two different Engine ECU output interfaces respectively; Form independently hand switch control loop with this; Engine ECU is when receiving the closed control loop signal of hand switch and two signals of automobile key switch KEY ON signal, and the output eloquence of Engine ECU is given the power supply of second relay coil.
Before above-mentioned vehicle driving, in the potential safety hazard inspection alarm set, be in series with safety fuse cutout between the switch contact of described second relay and the storage battery.Has the effect that does not damage oil pump when short circuit, over current fault appear in protection oil pump circuit.
Before above-mentioned vehicle driving, in the potential safety hazard inspection alarm set, also be connected with crankshaft position sensor on the described Engine ECU, described Engine ECU judges according to the detected crankshaft-position signal of crankshaft position sensor whether motor starts.Through other establish sensor to the detection of engine start can uncontrolled loop influence normally start back automatic closing and alarm lamp at motor.And when hand switch was closed, warning light work had the motor actuating signal not that receives crankshaft position sensor in the expression Engine ECU, represent that this device possibly break down, and makes things convenient for the vehicle trouble investigation.
Before above-mentioned vehicle driving in the potential safety hazard inspection alarm set, described Engine ECU is used to also to judge that the electric current of the delivery outlet that stops automatically behind the engine start being connected with warning light exports.
In the potential safety hazard inspection alarm set, described hand switch is arranged at the below of driver seat or the chair back back of driver seat before above-mentioned vehicle driving.Hand switch is arranged at concealed location, brings difficulty for the startup car, and at first fully the driver forms the problem of pre-trip inspection vehicle safety hidden danger, also strengthens the difficulty that cartheft is stolen vehicle simultaneously, and the effect of protection vehicle is arranged.
Existing technology is compared, and the utlity model has following advantage:
1, the utility model is through increasing the break-make of a hand switch control oil pump circuit; And when the oil pump circuit can't conducting; Worked by a warning light of Engine ECU control; Inspection car surrounding environment is got rid of potential safety hazard before the prompting driver drives vehicle, and with driving safety behind the assurance startup car, the driving that improves the driver is vigilant.
2, the utility model through other establish sensor to the detection of engine start can uncontrolled loop influence normally start back automatic closing and alarm lamp at motor.And when hand switch was closed, warning light work had the motor actuating signal not that receives crankshaft position sensor in the expression Engine ECU, represent that this device possibly break down, and makes things convenient for the vehicle trouble investigation.
3, the utility model comparison structure complicacy, expensive safe antitheft measure add robber's car difficulty through being arranged at hand switch concealed location, strengthen antitheft car ability.
Description of drawings
Fig. 1 is the utility model embodiment one a structural representation;
Fig. 2 is the utility model embodiment two a structural representation
Among the figure 1, crankshaft position sensor; 2, storage battery; 3, Engine ECU; Q, hand switch; T1, first relay; T2, second relay; L, warning light; R, safety fuse cutout; M, oil pump.
Embodiment
Below be the specific embodiment of the utility model and combine accompanying drawing, the technological scheme of the utility model is done further to describe, but the utility model is not limited to these embodiments.
Embodiment one, and is as shown in Figure 1, and this alarm set comprises Engine ECU 3, is connected with the first relay T on the Engine ECU 3 respectively
1, the second relay T
2With warning light L, the second relay T
2The coil and the first relay T
1Normal open switch series connection and ground connection, the second relay T
2Switch contact connect oil pump M and ground connection, oil pump M passes through the second relay T with storage battery 2
2Normal open switch be connected in series the second relay T
2Switch contact and storage battery 2 between be in series with safety fuse cutout R.The second relay T
2Coil connect the output interface of Engine ECU 3.The input end of control loop and the second relay T
2Coil input end be connected in parallel and be connected in Engine ECU 3 output interfaces.
The input interface of Engine ECU 3 connects the coil of the first relay T1; The input interface of Engine ECU 3 is connected through the coil of the first relay T1 with Engine ECU 3 output interfaces and is formed control loop; Be connected in series with hand switch Q on the control loop, hand switch Q is used to control the motor output interface and the second relay T
2The break-make of the connecting circuit of coil makes M work of the closed startup of normally opened contact oil pump or the disconnection of the second relay T2 stop oil pump M work.Here hand switch Q is arranged at the below of driver seat, also can select to be arranged at the hidden places such as chair back back of driver seat.
When the driver is not closing hand switch Q, when directly reaching KEY ON position signal to car key, Engine ECU 3 receives the actuating signal of car keies, and Engine ECU 3 output interface output currents are given the control loop and the second relay T
2Coil is because the second relay T
2Coil circuit do not have conducting, the second relay T
2Normal open switch do not have closure to make the second relay T
2Coil is conducting not; Then on the one hand the circuit of storage battery 2 oil feed pump M power supply conducting can not ato unit; Do not have the closed control signal of hand switch Q on the other hand to Engine ECU 3, Engine ECU 3 is given warning light L power supply, and warning light L checks potential safety hazard before lighting the prompting driver drives vehicle; After the driver checked out potential safety hazard, closed hand switch Q was when directly reaching KEY ON position signal to car key, because the first relay T once more
1With the second relay T
2Coil conducting simultaneously make the first relay T
1With the second relay T
2Switch contact closed, realize storage battery 2 oil feed pump M power supply, oil pump M work; Thereby engine start; Crankshaft position sensor 1 detects the startup of motor, gives Engine ECU 3 through electrical signal transfer, automatic closing and alarm lamp behind the Engine ECU 3 judgement engine starts.Make the driver form safety inspection custom before the good driving through increasing hand switch Q ato unit step.
The input end of the control loop in the ability instance and the second relay T
2Input end be connected in same Engine ECU 3 output interfaces, when guaranteeing these Engine ECU 3 output interface output currents under the situation of control loop conducting oil pump M line conduction.The break-make of oil pump M circuit is controlled by hand switch Q directly except that receiving the automobile key switch SC sigmal control.Through other establish sensor to the detection of engine start can uncontrolled loop influence normally start back automatic closing and alarm lamp at motor.And when hand switch Q was closed, warning light work had the motor actuating signal not that receives crankshaft position sensor 1 in the expression Engine ECU 3, represent that this device possibly break down, and makes things convenient for the vehicle trouble investigation.Hand switch Q is arranged at concealed location, brings difficulty for the startup car, can impel the driver to form the custom of pre-trip inspection vehicle safety hidden danger, also strengthens the difficulty that cartheft is stolen vehicle simultaneously, and the effect of protection vehicle is arranged.
Embodiment two, and is as shown in Figure 2, and the input end of the control loop among the embodiment two is connected in Engine ECU 3 output interfaces, the second relay T
2Coil be connected in another Engine ECU 3 output interfaces that are different from Engine ECU 3 output interfaces that connect on the control loop.Circuit theory and the same embodiment one of function that remaining components and parts and Placement form.This control circuit and the second relay T
2The input end of coil connects two different Engine ECU 3 output interfaces respectively; Form independently hand switch Q control loop with this; Engine ECU 3 is when receiving the closed control loop signal of hand switch Q and two signals of automobile key switch KEY ON signal, and the output eloquence of Engine ECU 3 is given the second relay T
2Coil power supply.
Specific embodiment described herein only is that the utility model spirit is illustrated.The utility model person of ordinary skill in the field can make various modifications or replenishes or adopt similar mode to substitute described specific embodiment, but can't depart from the spirit of the utility model or surmount the defined scope of appended claims.
Although this paper has used crankshaft position sensor 1, storage battery 2, Engine ECU 3, hand switch Q, the first relay T morely
1, the second relay T
2, term such as warning light L, safety fuse cutout R, oil pump M, but do not get rid of the possibility of using other term.Using these terms only is in order to describe and explain the essence of the utility model more easily; It all is contrary with the utility model spirit being construed to any additional restriction to them.
Claims (7)
1. the preceding potential safety hazard inspection of a vehicle driving alarm set comprises Engine ECU (3), it is characterized in that, is connected with the first relay (T on the described Engine ECU (3) respectively
1), the second relay (T
2) and warning light (L), the described second relay (T
2) the normal open switch series connection and the ground connection of coil and first relay (T1), the switch contact of described second relay (T2) connects oil pump (M) and ground connection, oil pump (M) and storage battery (2) are through the second relay (T
2) normal open switch be connected in series the described second relay (T
2) coil connect the output interface of Engine ECU (3), the input interface of said Engine ECU (3) connects the first relay (T
1) coil, the input interface of said Engine ECU (3) and Engine ECU (3) output interface are through the first relay (T
1) coil series connection form control loop, be connected in series with hand switch (Q) on the described control loop, described hand switch (Q) is used to control the motor output interface and the second relay (T
2) break-make of connecting circuit of coil, described Engine ECU (3) is used for after receiving car key to reach KEY ON position signal output current and gives the second relay (T
2) coil when hand switch (Q) is closed, make the second relay (T
2) normally opened contact closed start oil pump (M) work.
2. potential safety hazard inspection alarm set is characterized in that the input end of control loop and the second relay (T before the vehicle driving according to claim 1
2) coil input end be connected in parallel and be connected in Engine ECU (3) output interface.
3. potential safety hazard inspection alarm set is characterized in that the input end of described control loop is connected in Engine ECU (3) output interface, the described second relay (T before the vehicle driving according to claim 1
2) coil be connected in another Engine ECU (3) output interface that is different from Engine ECU (3) output interface that connects on the control loop.
4. according to potential safety hazard inspection alarm set before claim 1 or the 2 or 3 described vehicle drivings, it is characterized in that the described second relay (T
2) switch contact and storage battery (2) between be in series with safety fuse cutout (R).
5. potential safety hazard inspection alarm set before the vehicle driving according to claim 4; It is characterized in that; Also be connected with crankshaft position sensor (1) on the described Engine ECU (3), described Engine ECU (3) also is used for judging according to the detected crankshaft-position signal of crankshaft position sensor (1) whether motor starts.
6. potential safety hazard inspection alarm set is characterized in that before the vehicle driving according to claim 5, and described Engine ECU (3) is used to also to judge that the electric current of the delivery outlet that stops automatically behind the engine start being connected with warning light (L) exports.
7. potential safety hazard inspection alarm set is characterized in that before the vehicle driving according to claim 6, and described hand switch (Q) is arranged at the below of driver seat or the chair back back of driver seat.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200149972U CN202451279U (en) | 2012-01-13 | 2012-01-13 | Device for reminding potential safety hazard inspection before driving |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200149972U CN202451279U (en) | 2012-01-13 | 2012-01-13 | Device for reminding potential safety hazard inspection before driving |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202451279U true CN202451279U (en) | 2012-09-26 |
Family
ID=46867148
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012200149972U Expired - Fee Related CN202451279U (en) | 2012-01-13 | 2012-01-13 | Device for reminding potential safety hazard inspection before driving |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202451279U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111775958A (en) * | 2020-06-30 | 2020-10-16 | 东风商用车有限公司 | Method for diagnosing loss of crankshaft signal and camshaft signal of engine |
| CN115099515A (en) * | 2022-07-07 | 2022-09-23 | 星软集团有限公司 | Optimization method for intelligent processing of vehicle risks |
-
2012
- 2012-01-13 CN CN2012200149972U patent/CN202451279U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111775958A (en) * | 2020-06-30 | 2020-10-16 | 东风商用车有限公司 | Method for diagnosing loss of crankshaft signal and camshaft signal of engine |
| CN115099515A (en) * | 2022-07-07 | 2022-09-23 | 星软集团有限公司 | Optimization method for intelligent processing of vehicle risks |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120926 Termination date: 20140113 |