CN112706690A - Intelligent flashing system, intelligent vehicle front component, motor controller, combination switch and electric vehicle - Google Patents

Intelligent flashing system, intelligent vehicle front component, motor controller, combination switch and electric vehicle Download PDF

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Publication number
CN112706690A
CN112706690A CN202110202293.1A CN202110202293A CN112706690A CN 112706690 A CN112706690 A CN 112706690A CN 202110202293 A CN202110202293 A CN 202110202293A CN 112706690 A CN112706690 A CN 112706690A
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China
Prior art keywords
switch
circuit
flash
lamp
steering
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CN202110202293.1A
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Chinese (zh)
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不公告发明人
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Tianjin Jiujiu Electronics Co ltd
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Tianjin Jiujiu Electronics Co ltd
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Priority to CN202110202293.1A priority Critical patent/CN112706690A/en
Publication of CN112706690A publication Critical patent/CN112706690A/en
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60Q—ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
    • B60Q1/00—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor
    • B60Q1/26—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to indicate the vehicle, or parts thereof, or to give signals, to other traffic
    • B60Q1/46—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to indicate the vehicle, or parts thereof, or to give signals, to other traffic for giving flashing caution signals during drive, other than signalling change of direction, e.g. flashing the headlights or hazard lights
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60Q—ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
    • B60Q1/00—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60Q—ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
    • B60Q1/00—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor
    • B60Q1/26—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to indicate the vehicle, or parts thereof, or to give signals, to other traffic
    • B60Q1/34—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to indicate the vehicle, or parts thereof, or to give signals, to other traffic for indicating change of drive direction
    • B60Q1/36—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to indicate the vehicle, or parts thereof, or to give signals, to other traffic for indicating change of drive direction using movable members, e.g. arms with built-in flashing lamps
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60Q—ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
    • B60Q1/00—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor
    • B60Q1/26—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to indicate the vehicle, or parts thereof, or to give signals, to other traffic
    • B60Q1/44—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to indicate the vehicle, or parts thereof, or to give signals, to other traffic for indicating braking action or preparation for braking, e.g. by detection of the foot approaching the brake pedal
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60Q—ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
    • B60Q5/00—Arrangement or adaptation of acoustic signal devices
    • B60Q5/005—Arrangement or adaptation of acoustic signal devices automatically actuated

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Lighting Device Outwards From Vehicle And Optical Signal (AREA)

Abstract

The invention discloses an intelligent flashing system, an intelligent vehicle front component, a motor controller, a combination switch and an electric vehicle. The intelligent flash system is characterized by comprising 2 control modes: a centralized control mode and a discrete control mode. The centralized mode includes a front flashing light, a rear flashing light, a front flashing light control circuit, and a rear flashing light line. The discrete mode contains preceding flashing light, back flashing light, preceding flashing light control circuit, back flashing light control circuit and communication line. The invention has the following effects: the intelligent parts in front of vehicle are integrated with double flashing functions, such as flashing light when backing car, flashing light when braking, and distinguishing the turning direction when turning, and replacing the traditional beeping sound with 'left-turn-please-notice' or 'right-turn-please-notice' function, and the system has short-circuit protection to prevent fire.

Description

Intelligent flashing system, intelligent vehicle front component, motor controller, combination switch and electric vehicle
Technical Field
The automobile electronic technology, in particular to an electric appliance of an electric vehicle and a lamp control system.
Background
For convenience of description, the present invention defines the following terms:
the 'switching tube' generally refers to a Darlington tube, an IGBT tube or an MOS tube;
the positive electrode current inflow end;
a "negative" current outlet end;
the inlet wire of the 'locking-in' electric door lock switch is generally from the output of a storage battery or a converter;
the outgoing line of the 'lock-in' electric door lock switch;
"Large wire" refers to a bundle of wires connected between electrical components of an electric vehicle, which are generally bundled together and respectively connected to various electrical components, some of which are called wire harnesses;
the electric vehicle refers to a low-speed small vehicle taking a battery as power, such as a baby carriage, an electric bicycle, an electric moped, an electric motorcycle, an electric tricycle, a recreational vehicle, a caravan and the like;
the 'front electric appliance' refers to all electric appliances at the front end of the electric vehicle, such as an electric door lock, a front brake switch, a rear brake switch, a reversing switch, a gear switch, a lamp and a switch thereof, a loudspeaker and a switch thereof and the like;
the adapter is a component which is connected with all front electric appliances at the front end of the electric vehicle, does not have the functions of illumination and electric vehicle parameter display, and transmits signals to the rear part of the vehicle after signal processing, such as a motor controller, a rear tail lamp and the like;
the 'headlight assembly' refers to a component which is arranged on a handlebar or a driving platform at the front end of the electric vehicle and is used for lighting and has the function of displaying parameters of the electric vehicle. Or original pure headlight illumination is added with parts with functions of instruments after the invention is applied. Also called lamp holder, combined headlight;
the 'combination instrument' refers to a component with the function of displaying electric vehicle parameters at the front end of an electric vehicle, and comprises a component combined with a large lamp (the components are called as the combination instrument, a gauge head and a lamp holder in the industry);
the 'car light switch' comprises switches of a left steering light, a right steering light, a reversing light and a brake light;
the "combination switch" refers to a component which is installed on a handlebar or a driving platform and has a plurality of switches combined together, such as a lamp control switch, a steering switch, a horn switch, a three-gear switch, a cruise switch, a P-gear switch and the like. The switch combination is called two-in-one switch in the industry, the switch combination is called three-in-one switch in the industry, and the switch combination is called four-in-one switch in the industry. The three-in-one switch is widely applied in the market at present.
The front flashing light comprises a left steering light and a right steering light;
the 'rear flashing light' comprises a left steering light, a right steering light, a reversing light and a brake light;
the horn comprises a buzzer horn or a moving coil horn which are commonly used in the market;
the 'intelligent parts in front of the vehicle' refers to parts of the front end of the electric vehicle, which are connected with all electric appliances in front of the vehicle, and comprise the adapter, the headlamp assembly or the combination instrument.
The traditional electric vehicle has the following 6 problems:
1. when a traditional electric vehicle is backed, a back-up lamp behind the vehicle is always on, has no flashing function, and is not easily recognized by pedestrians and vehicles behind the vehicle, so that traffic accidents are caused;
2. when the traditional electric vehicle is braked, a brake lamp behind the vehicle is always on, has no flashing function, and is not easily recognized by pedestrians and vehicles behind the vehicle, so that traffic accidents are caused;
3. the sound of the traditional electric vehicle during turning is only the ticker, which is not left or right, and pedestrians nearby are not easy to distinguish, thereby causing traffic accidents;
4. the double-flashing function can be completed only by matching with a special flasher or a four-in-one component, so that a plug of a plug wire is added, the space is occupied, and the labor cost and the material cost of assembly are increased;
5. in the case of double flash, it is particularly troublesome if the turn signal is to be turned on. The double-flash switch is required to be turned off first, and then the steering switch is turned on again. The attention of driving is dispersed, and the driving safety is influenced;
6. the lamp system has no short-circuit protection function. If short circuit occurs, the cable will smoke and even fire will be triggered. A fuse box is arranged at an outlet of a storage battery of a traditional electric vehicle, but the short circuit of a large current of a motor controller and a charger is prevented. Low current components, such as turn signals, are not protected at all. The fuse box will not be opened even if short-circuited.
Disclosure of Invention
The object of the present invention is to solve the above 6 problems. Applying a smart flash system such that:
1. flashing lights when backing a car;
2. flashing lights when braking;
3. the direction of turning can be distinguished when turning, and the traditional beep is replaced by left-turning please note or right-turning please note;
4. the double-flash function is integrated in the intelligent component in the front of the vehicle, so that the occupied space of the component is reduced, and the labor cost and the material cost of production and assembly are reduced;
5. the steering is prior when the double flashing is started, namely the steering switch is turned on in a double flashing state, the flashing of the double flashing lamps is immediately stopped, the corresponding steering lamps are immediately started, and accurate sounds of 'turning left-to-please' or 'turning right-to-please' are simultaneously sent out without exiting the double flashing switch;
6. the short-circuit protection function is added, the lamp on any one passage can be protected if the short circuit occurs due to accidental line collision, the lamp can work again after the fault is eliminated, a fuse box does not need to be replaced, and fire disasters are prevented.
An intelligent flash system:
the intelligent flash system is divided into 2 control modes: a centralized control mode and a discrete control mode.
The centralized control mode comprises 4 parts of a front flashing light, a rear flashing light, a front flashing light control circuit and a rear flashing light wiring harness. The front flashing light control circuit is connected with the front flashing light and the rear flashing light wire harness, and the rear flashing light wire harness is connected with the rear flashing light. The rear flashing light wire harness belongs to one part of a large wire of an electric vehicle. See fig. 3, 4, 9, 10.
The discrete control mode comprises 5 parts of a front flashing light, a rear flashing light, a front flashing light control circuit, a rear flashing light control circuit and a communication line. The front flashing light control circuit is connected with the front flashing light and the communication line, the communication line is connected with the rear flashing light control circuit, and the rear flashing light control circuit is connected with the rear flashing light. The communication line belongs to a part of a large line of the electric vehicle. See fig. 5, 6, 11, 12.
The front flashing light control circuit comprises a sampling resistor circuit Q, a comparison circuit Q, an electronic switch circuit Q, a car light switch circuit and a mcu circuit Q. The sampling resistance circuit Q is connected with the comparison circuit Q and the electronic switch circuit Q. And the electronic switching circuit Q is connected with the vehicle lamp switching circuit. The mcu circuit Q is connected with the comparison circuit Q, the electronic switch circuit Q and the car lamp switch circuit. The car light switch circuit is connected with the front flashing light. The electronic switching circuit Q comprises a driving circuit of a switching tube, and the driving circuits of Mos tubes, Darlington tubes and IGBTs are different.
In low-cost applications, the sampling resistor circuit Q and the comparison circuit Q are eliminated, see fig. 4 and 6.
The voltage at two ends of the sampling resistance circuit Q reflects the current flowing through the related car lamp, and when the voltage value of the sampling resistance circuit Q is larger than a set value, the output signal of the comparison circuit Q triggers the short-circuit protection program of the mcu circuit Q. The mcu circuit Q closes the electronic switch circuit Q to cut off current, and short-circuit protection is achieved.
The electronic switch circuit Q comprises a switch tube, if the cost is reduced, the sampling resistance circuit Q is cancelled and replaced by the internal resistance of the switch tube, and the comparison circuit Q is connected with the electronic switch circuit Q. This is a way of eliminating the cost of the sampling resistor circuit Q.
The sampling resistance circuit Q can also be moved between the electronic switch circuit Q and the vehicle lamp switch circuit, and the flashing function is kept unchanged. This is a method of maliciously changing structures that violates this patent, and the principle of flashing is the same.
The front flashing light control circuit belongs to a functional circuit of an intelligent component in the front of a vehicle, such as an adapter, a combination instrument and a headlamp assembly.
The back flashing light control circuit comprises a sampling resistor circuit H, a comparison circuit H and an electronic switch circuit H, mcu circuit H. The sampling resistance circuit H is connected with the comparison circuit H and the electronic switch circuit H. The electronic switch circuit H is connected with the rear flashing light. The mcu circuit H is connected with the comparison circuit H and the electronic switch circuit H. The electronic switch circuit H comprises a driving circuit of a switch tube, and the driving circuits of the Mos tube, the Darlington tube and the IGBT are different.
In low cost applications, the sampling resistor circuit Q and the comparison circuit H are eliminated, see fig. 6, 12. The centralized control mode is free of the comparison circuit H.
The voltage at two ends of the sampling resistance circuit H reflects the current flowing through the related car lamp, and when the voltage value of the sampling resistance circuit H is larger than a set value, the output signal of the comparison circuit H triggers the short-circuit protection program of the mcu circuit H. The mcu circuit H closes the electronic switch circuit H to cut off current, and short-circuit protection is achieved.
The electronic switching circuit H comprises 2-4 switching tubes which respectively control a left steering lamp, a right steering lamp, a reversing lamp and a brake lamp. When short-circuited, the switching tubes can be completely closed, which is simplest. And a short-circuit path can be found by a power-on test method, so that accurate protection is realized, and a normal path can work as usual.
The sampling resistor circuit H can also be moved between the electronic switching circuit H and the rear flashing light, the flashing function remaining unchanged. This is a method of maliciously changing structures that violates this patent, and the principle of flashing is the same.
The back flashing light control circuit belongs to a functional circuit of a motor controller.
The intelligent flashing system is divided into 2 structures: a common ground structure and a common anode structure.
One end of the front flashing lamp and one end of the rear flashing lamp of the common ground structure are both connected with a negative electrode wire, and one end of the sampling resistor circuit Q or/and one end of the sampling resistor circuit H are both connected with a positive electrode wire. At this time, the comparison circuit Q and the comparison circuit H include differential operational amplifier circuits. See fig. 3, 4, 5, 6.
One end of the front flashing lamp and one end of the rear flashing lamp of the common anode structure are both connected with a positive pole wire, and one end of the sampling resistor circuit Q or/and one end of the sampling resistor circuit H are both connected with a negative pole wire. See fig. 9, 10, 11, 12.
The rear flashing light is divided into an integrated light and a split light. The integrated lamp is only needed for a small vehicle, and the two-wheel vehicle is commonly used. The split lamps are used for large-sized vehicles, the number of the split lamps is two on the left and the right, and three-wheel vehicles and four-wheel vehicles are commonly used.
The intelligent flash system is divided into 4 types: a common ground structure centralized control mode system (see fig. 3 and 4), a common ground structure discrete control mode system (see fig. 5 and 6), a common positive structure centralized control mode system (see fig. 9 and 10) and a common positive structure discrete control mode system (see fig. 11 and 12).
The implementation process of the flashing of the backup light is as follows:
the first method for realizing the flashing of the backup light, the centralized mode:
the car light switch circuit in the centralized control mode comprises a reversing switch. The back flashing light comprises a back-up light. The rear flashing light wire harness comprises a reversing wire.
One end of the reversing switch is connected with the electronic switch circuit Q, and the other end of the reversing switch is connected with the reversing lamp through the reversing line.
The mcu circuit Q controls the electronic switch circuit Q, and acts according to a set switching frequency to generate a flash signal, when the reversing switch is switched on, the flash signal is transmitted to the reversing lamp along the reversing line through the reversing switch to drive the reversing lamp to flash. The circuit principle and the method for realizing the flickering of the backup lamp in the centralized control mode are disclosed.
Meanwhile, the mcu circuit Q can be connected with the reversing switch, detects a switch signal of the reversing switch, processes the switch signal and transmits the processed switch signal to the motor controller in a communication mode, and the reversing function of the electric vehicle bus control system is achieved.
The second method for realizing the flash of the backup lamp-discrete mode:
the lamp switch circuit Q in the discrete control mode comprises a reversing switch. The electronic switch circuit H comprises a reversing switch tube. The back flashing light comprises a back-up light.
The reversing switch is connected with the mcu circuit Q. And when the mcu circuit Q detects that the reversing switch is switched on, transmitting information to the mcu circuit H through the communication line. The mcu circuit H controls the reversing switch tube to drive the reversing lamp to flicker. This is the circuit principle and method for realizing the flash of the backup lamp in the discrete control mode. The method is applied to the bus control system of the electric vehicle.
The frequency of the flash signal (i.e., the flash cadence) is derived from the mcu circuit Q or the mcu circuit H. Usually the mcu circuit Q also controls the flashing of the turn signal lights. Therefore, the frequency of the flash signal is preferably derived from the mcu circuit Q, and the purpose of optimizing system software is achieved.
Meanwhile, the mcu circuit Q can be connected with the reversing switch to detect a switch signal of the reversing switch, and the processed signal is transmitted to the mcu circuit H in the motor controller through the communication wire, so that the reversing function of the electric vehicle bus control system is realized.
In addition, for the centralized control mode and the discrete control mode, the mcu circuit Q comprises an mcu chip, a voice chip, a power amplifier circuit and a loudspeaker circuit interface; the voice chip comprises a voice section for 'backing car and please note'; when the mcu chip detects that the reversing switch is switched on, the voice chip is controlled to play the voice signals of 'reversing and please note', the voice signals are amplified by the power amplifier circuit, and then the voice signals are used for driving the loudspeaker to make reversing related sounds through the loudspeaker circuit interface.
The following is the implementation process of the brake lamp flickering:
the first method for realizing the flashing of the brake lights, the centralized mode:
the car light switch circuit in the centralized control mode comprises a brake switch. The rear flashing light comprises a brake light. The rear flashing light wire harness comprises a brake cable.
And one end of the brake switch is connected with the electronic switch circuit Q, the other end of the brake switch is connected with the brake cable, and the brake cable is connected with the brake lamp through the rear flashing lamp wire harness.
The mcu circuit Q controls the electronic switch circuit Q, and acts according to a set switching frequency to generate a flash signal, when the brake switch is switched on, the flash signal is transmitted to the brake lamp along the brake cable through the brake switch to drive the brake lamp to flash. The circuit principle and the method for realizing the brake lamp flickering in the centralized control mode are disclosed.
Meanwhile, the mcu circuit Q can be connected with the brake switch, detects a switch signal of the brake switch, processes the switch signal and transmits the processed switch signal to the motor controller in a communication mode, and the brake function of the electric vehicle bus control system is achieved.
The second method for realizing the brake light flashing-discrete mode:
the car light switching circuit Q in the discrete control mode comprises a brake switch. The electronic switching circuit H comprises a brake switch tube. The rear flashing light comprises a brake light.
And the brake switch is connected with the mcu circuit Q. And when the mcu circuit Q detects that the brake switch is switched on, the communication line is used for transmitting the communication line to the mcu circuit H. The mcu circuit H controls the brake switch tube and drives the brake lamp to flicker. The circuit principle and the method for realizing the brake lamp flickering in the discrete control mode are disclosed. The method is applied to the bus control system of the electric vehicle.
The frequency of the flash signal is derived from the mcu circuit Q or the mcu circuit H. The mcu circuit Q also typically controls the blinking of the turn signals. Therefore, the flash signal frequency is preferably derived from the mcu circuit Q, and the purpose of optimizing system software is achieved.
Meanwhile, the mcu circuit Q can be connected with the brake switch, detects a switch signal of the brake switch, transmits the switch signal to the mcu circuit H in the motor controller through the communication wire after processing, and achieves the brake function of the electric vehicle bus control system.
The following is the implementation process of the steering function capable of distinguishing left and right turns:
the first method for realizing the flashing of the turn signal and distinguishing the left turn and the right turn, namely the centralized mode:
the lamp switching circuit in the centralized control mode comprises a left steering switch and a right steering switch. The front flashing light comprises a left steering light Q and a right steering light Q. The rear flashing light comprises a left steering light H and a right steering light H. The rear flashing light wire harness comprises a left-turn line and a right-turn line.
And one ends of the left steering switch and the right steering switch are connected with the electronic switch circuit Q, and the other ends of the left steering switch and the right steering switch are connected with the front flashing light and the rear flashing light wire harness and are connected with the rear flashing light through the rear flashing light wire harness.
The mcu circuit Q is connected with the left steering switch and the right steering switch and detects the switching state of the left steering switch and the right steering switch. The mcu circuit Q controls the electronic switch circuit Q, and acts according to a set switching frequency to generate a flashing signal, when the left steering switch or the right steering switch is switched on, the flashing signal directly drives the left steering lamp Q or the right steering lamp Q to flash on one hand, and transmits the flashing signal to the rear flashing lamp along the left turning line or the right turning line to drive the left steering lamp H or the right steering lamp H to flash on the other hand. This is the circuit principle and method for the implementation of the blinking of the turn signal in the centralized control mode.
The left turn light Q and the left turn light H are controlled by the same electronic switch circuit Q, so that the flickering is synchronous. Similarly, the right turn signal lamp Q and the right turn signal lamp H are controlled by the same electronic switch circuit Q, so that the flickering is synchronous. The function of synchronous flicker of the front and the rear steering lamps is realized in a centralized control mode.
The second method for realizing the flashing of the turn signal and distinguishing the left turn and the right turn is a discrete mode:
the lamp switching circuit in the discrete control mode includes a left steering switch and a right steering switch. The mcu circuit Q is connected with the left steering switch and the right steering switch.
The front flashing light comprises a left steering light Q and a right steering light Q. The electronic switching circuit H comprises a left-turn switching tube H and a right-turn switching tube H. The rear flashing light comprises a left steering light H and a right steering light H.
And one ends of the left steering switch and the right steering switch are connected with the electronic switch circuit Q, and the other ends of the left steering switch and the right steering switch are connected with the left steering lamp Q and the right steering lamp Q.
The mcu circuit Q is connected with the left steering switch and the right steering switch and detects the switching state of the left steering switch and the right steering switch. The mcu circuit Q controls the electronic switch circuit Q, a flash signal is generated by action according to a set switching frequency, when the left steering switch or the right steering switch is switched on, the flash signal directly drives the left steering lamp Q or the right steering lamp Q to flash through the left steering switch or the right steering switch on one hand, and on the other hand, the mcu circuit Q transmits the detected turning information and the flash signal to the mcu circuit H through the communication line, and the mcu circuit H controls the left steering switch tube H or the right steering switch tube H to drive the left steering lamp H or the right steering lamp H to flash. This is a circuit principle and method for achieving the flashing of the turn signal lamp in the discrete control mode.
The left turn light Q and the left turn light H are controlled by the same electronic switch circuit Q, so that the flickering is synchronous; similarly, the right turn signal lamp Q and the right turn signal lamp H are controlled by the same electronic switch circuit Q, so that the flickering is synchronous. Here the synchronization problem is solved.
Meanwhile, for the centralized control mode and the discrete control mode, the mcu circuit Q comprises an mcu chip, a voice chip, a power amplifier circuit and a loudspeaker circuit interface; the voice chip comprises voice sections of 'left turn-please-note' and 'right turn-please-note'; when the mcu chip detects that the left steering switch or the right steering switch is switched on, the voice chip is controlled to play the voice signals of 'left turn-please note' or 'right turn-please note', the voice signals are amplified by the power amplification circuit, and then the voice signals are used for driving a loudspeaker to emit sounds capable of distinguishing 'left turn and right turn' through the loudspeaker circuit interface.
The "left turn-please-note" and the "right turn-please-note" are just one example, and other voice effects can be customized as long as the corresponding voice segments of the voice piece are exchanged for other sounds. Both centralized mode and discrete mode.
In addition, the flicker driving of the left turn signal Q and the right turn signal Q may be realized by respectively controlling the left turn switch and the right turn switch with 2 resistive switch circuits without passing through the left turn switch and the right turn switch, but the circuit cost is increased. Namely, the electronic switch tube for the front steering lamp controls the flickering.
The implementation process of the double flash function is as follows: is performed on the basis of the steering function (claim 4), the same parts are not repeated.
The car light switch circuit comprises a double-flash switch besides the left steering switch and the right steering switch.
When the double flashing switch is turned on, the left steering switch and the right steering switch are also simultaneously turned on. The current combination switch has a double-flash switch, and the working principle is the same.
In the centralized control mode: when two flashing switches switch on flash of light signal just passes through left side switch with right side switch, direct drive on the one hand left indicator Q and the synchronous scintillation of right indicator Q, on the other hand follow left turn line with right turn line passes to left side indicator H with right side indicator H, the drive left side indicator H with right side indicator H is synchronous two to dodge. The double flashing function of the light is completed.
In the discrete control mode: when the double-flash switch is switched on, the flash signal directly drives the left steering lamp Q and the right steering lamp Q to flash synchronously on one hand through the left steering switch and the right steering switch, on the other hand, the double-flash signal is transmitted to the mcu circuit H through the communication wire by the mcu circuit Q, and the mcu circuit H simultaneously controls the left steering switch tube H and the right steering switch tube H to drive the left steering lamp H and the right steering lamp H to flash synchronously. The double flashing function of the light is completed.
Meanwhile, for the centralized control mode and the discrete control mode: the voice chip also includes a voice segment of the "tic". When the double-flash switch is turned on, the mcu circuit Q detects that the left-turn switch and the right-turn switch are simultaneously effective, the double-flash abnormal condition is judged to be a non-steering operation, and the mcu circuit Q controls the voice chip to play the voice signal of the 'tic' and emit the sound of the double-flash lamp. The playing function of sound in the double-flash of the light is completed. The beep is a common sound in the industry today. The patent can also play other sounds such as 'abnormal vehicle, please avoid' and 'please give a night', and only the 'tic' of the voice chip is changed into other voice data.
The following is the implementation process of the double-flash turn-to-priority function, which is completed on the basis of the turn-to-function (weight 4) and the double-flash function (weight 5), and the same parts are not repeated:
the car light switch circuit still contains independent two flashing switches except that left side switch with right side switch, the switch-on of two flashing switches does not influence left side switch with right side switch's signal. The double-flash switch in the traditional combination switch can not be used
The electronic switching circuit Q comprises a left-turn switching tube Q and a right-turn switching tube Q. Here 1 more switching tube.
The left-turn switch tube Q and the right-turn switch tube Q are respectively connected with the left steering switch and the right steering switch or respectively connected with the left steering lamp Q and the right steering lamp Q. The switch tube directly drives the front steering lamp or drives the front steering lamp through the switch. Direct drive is preferred for this patent.
The mcu circuit Q is connected with the double-flash switch, the left-turn switch tube Q and the right-turn switch tube Q. Here unlike the previous: the electronic switching circuit Q in the prior art has only one switching tube, here 2. When the circuit is abnormally short-circuited, the mcu circuit Q cuts off the connection between the left-turn switching tube Q and the right-turn switching tube Q. The switch tube in the original electronic switch circuit Q can be reserved for circuit protection independently, which is equivalent to 3 switch tubes, but the cost is higher, and the patent does not recommend the switch tube protection method.
In the centralized control mode:
and when the double flash switch is switched on and neither the left steering switch nor the right steering switch is switched on, the mcu circuit Q judges that the double flash mode exists. Because the operation of the double-flash switch does not affect the signals of the left steering switch and the right steering switch, the precondition is ensured.
The mcu circuit Q controls the left-turn switch tube Q and the right-turn switch tube Q, and the left-turn switch tube Q and the right-turn switch tube Q both act according to a set switching frequency to generate 2 paths of flashing signals, and the flashing signals respectively pass through the left-turn switch and the right-turn switch or directly drive the left-turn lamp Q and the right-turn lamp Q to flash synchronously. The flashing switch tube of the headlight can be directly driven or driven by a steering switch, and the direct drive is preferred in the patent.
And on the other hand, the left turning line and the right turning line are transmitted to the left steering lamp H and the right steering lamp H to drive the left steering lamp H and the right steering lamp H to synchronously flash, so that the double-flash function is realized.
At the same time, the mcu circuit Q plays the sound of the "tic". This is a double flashing sound.
The above is the dual flash function in the centralized mode.
When the left steering switch or the right steering switch is turned on, the mcu circuit Q determines that the steering mode is the steering mode regardless of whether the dual flash switch is turned on or not. This is a detection of steering priority.
The mcu circuit Q controls the left-turn switching tube Q or the right-turn switching tube Q, and generates 1-way flash signals according to the set switching frequency. This is the generation of the turn signal. Turning left and turning right only has one path of effectiveness.
The flashing signal respectively passes through the left steering switch or the right steering switch, or directly drives the left steering lamp Q or the right steering lamp Q to flash. The flashing switch tube of the headlight can be directly driven or driven by a steering switch, and the direct drive is preferred in the patent.
And on the other hand, the steering signals are transmitted to the left steering lamp H or the right steering lamp H along the left turning line or the right turning line, and the left steering lamp H or the right steering lamp H is driven to synchronously flash, so that the function of steering priority is realized.
Meanwhile, the mcu circuit Q plays the sound of the "left turn-please-note" or the "right turn-please-note". This is the implementation of the speech function.
The above is the implementation of the double-flash steering precedence in the centralized mode.
In the discrete control mode:
and when the double flash switch is switched on and neither the left steering switch nor the right steering switch is switched on, the mcu circuit Q judges that the double flash mode exists.
The mcu circuit Q controls the left-turn switching tube Q and the right-turn switching tube Q, and the left-turn switching tube Q and the right-turn switching tube Q both operate according to a set switching frequency to generate 2 paths of flash signals. This is the source of the flash signal.
The flashing signals respectively pass through the left steering switch and the right steering switch, or directly drive the left steering lamp Q and the right steering lamp Q to flash synchronously. The flashing switch tube of the headlight can be directly driven or driven by a steering switch, and the direct drive is preferred in the patent.
On the other hand, the mcu circuit Q transmits double-flashing information to the mcu circuit H through the communication line, and the mcu circuit H controls the left-turn switching tube H and the right-turn switching tube H to drive the left steering lamp H and the right steering lamp H to flash synchronously, so that the double-flashing function is realized. Synchronization refers to coincidence with the beat of the front turn signal.
At the same time, the mcu circuit Q plays the sound of the "tic". This is a double flashing sound.
The above is a discrete mode dual flash function.
When the left steering switch or the right steering switch is turned on, the mcu circuit Q judges that the steering mode is the steering mode no matter whether the double-flash switch is turned on or not. This is a detection of steering priority.
The mcu circuit Q controls the left-turn switching tube Q or the right-turn switching tube Q, and generates 1-way flash signals according to the set switching frequency. This is the source of the turn signal.
The flashing signal respectively passes through the left steering switch or the right steering switch, or directly drives the left steering lamp Q or the right steering lamp Q to flash. Direct drive is preferred in this patent as it is indirect drive.
On the other hand, the mcu circuit Q transmits steering information to the mcu circuit H through the communication wire, and the mcu circuit H controls the left steering switch tube H or the right steering switch tube H to drive the left steering lamp H or the right steering lamp H to flicker synchronously, so that the function of steering priority is realized. Synchronization refers to coincidence with the beat of the front turn signal.
Meanwhile, the mcu circuit Q plays the sound of the "left turn-please-note" or the "right turn-please-note". This is a sound implementation.
The above is the implementation of the double-flash steering precedence in discrete mode.
The utility model provides an intelligent part in plantago, is applied to above-mentioned intelligent flash of light system, has contained preceding flashing light control circuit. The intelligent parts in front of the vehicle comprise an adapter, a combination instrument and a headlamp assembly.
The intelligent parts in front of the vehicle are connected with all electric appliances in front of the vehicle, and the electric appliances are transmitted to the motor controller or/and the tail lamp through communication wires after being processed. The intelligent part in front of the vehicle is provided with an external communication interface, and information of relevant electric appliances of the motor controller in front of the vehicle passes through the communication interface.
The following functional circuits may also be selected according to customer requirements. The intelligent vehicle front part also comprises a combination of a voice and power amplifier circuit, a remote control anti-theft circuit, a combined rotating handle circuit, a combined switch circuit, an instrument display function circuit and a key-free circuit. Some applications have no key-free circuit, some have no remote control anti-theft circuit, and the specific products are determined according to the requirements of customers.
A controller is applied to the intelligent flashing system and comprises the rear flashing light control circuit.
A combination switch is applied to the intelligent flash system.
The combination switch comprises 2 to 7 switch components, a body, an output line head and a plug. The number of switch assemblies depends on the user customization.
The combination switch has a collinear connection between the components within the body. Each collinear joint means that one less wire can be used, and more collinear joints saves more wire. This is one of the objectives of improvement over conventional combination switches.
The combination switch collects all the output line heads of all the components combined above the combination switch into one plug. Thus, a plurality of plugs which are dispersed conventionally are concentrated in one plug.
The plug corresponds to a socket on a circuit board connected with the plug so as to be plugged into the socket together. The socket associated with the plug must be adapted to be soldered to the circuit board, which is a very obvious improvement of the combination switch of the present invention.
For the application with the multiplexing of the switch assembly, the combined switch is used for silk-screening related characters and icons at the position of the switch assembly of the body. For example, when the horn switch and the repair switch are multiplexed, characters and icons corresponding to the horn and the repair switch are printed on the relevant positions in a silk-screen mode.
The switch assembly includes a left steering switch, a right steering switch, and a dual-flash switch. The switching-on of the double-flash switch does not affect the signals of the left steering switch and the right steering switch. Most of the combined switches in the current market have no double-flash switches. Even if the switch is provided, after the double-flashing switch is switched on, the left steering switch and the right steering switch are switched on simultaneously, which is equivalent to linkage. The double-flash switch is to release the interlocking connection mode, and the double-flash switch works independently.
An electric vehicle is provided with the intelligent flashing system, the intelligent vehicle front component, the controller or the combination switch.
The invention has the following effects:
1. flashing lights when backing a car;
2. flashing lights when braking;
3. the direction of turning can be distinguished when turning, and the traditional beep is replaced by left-turning please note or right-turning please note;
4. the double-flash function is integrated in the intelligent component in the front of the vehicle, so that the occupied space of the component is reduced, and the labor cost and the material cost of production and assembly are reduced;
5. turning first when the double flashers are started, turning on a turning switch to stop the flashing of the double flashers, starting the corresponding turning lamps immediately, and simultaneously giving out accurate sounds of 'turning left-please-attention' or 'turning right-please-attention' without exiting the double flashers;
6. the short-circuit protection function is added, the lamp on any one passage can be protected if the short circuit occurs due to accidental line collision, the lamp can work again after the fault is eliminated, a fuse box does not need to be replaced, and fire disasters are prevented.
The specific product can select one, more or all of the functions.
Drawings
FIG. 1 is a common ground configuration front flashing light circuit;
FIG. 2 is a circuit for a rear flashing light in a common ground configuration;
FIG. 3 is a diagram of a common ground configuration centralized control mode with short circuit protection flash system;
FIG. 4 is a diagram of a common ground architecture centralized control mode flash system without short circuit protection;
FIG. 5 is a schematic diagram of a common ground discrete control mode flash system with short circuit protection;
FIG. 6 is a diagram of a common ground discrete control mode no short protection flash system;
FIG. 7 is a circuit for a front flashing light in a common anode configuration;
FIG. 8 is a circuit for a rear flashing light in a common anode configuration;
FIG. 9 shows a common anode structure with short-circuit protection flash system in centralized control mode;
FIG. 10 is a diagram of a common anode structure centralized control mode flash system without short-circuit protection;
FIG. 11 shows a short-circuit protection flash system in a common-anode structure discrete control mode;
FIG. 12 is a schematic diagram of a common anode structure discrete control mode flash system without short circuit protection;
FIG. 13 is a circuit for a common ground configuration turn-first front flasher;
FIG. 14 is a front flasher circuit with priority for a common anode configuration.
Detailed Description
The intelligent flash system of the invention is of 4 types: the system comprises a common-ground structure centralized control mode system, a common-ground structure discrete control mode system, a common-anode structure centralized control mode system and a common-anode structure discrete control mode system. Only one of the electric vehicles is selected according to the requirements of customers.
4 types all have the MCU circuit, and the technical parameters mainly considered for the type selection of the MCU chip are as follows: the operating speed, the temperature range, the quantity of GPIOs, the FLASH size, the RAM size, the mode of the external communication port and other parameters are considered. At present, a plurality of single-chip microcomputers in the market can meet the requirement, and for example, the single-chip microcomputers can be used in a plurality of brand technologies of manufacturers such as Microchip, freescale, ST, infineon, cypress and the like.
Both modes of discrete communication involve communication, and the modes of communication can be selected from uart, lin, can, i2c, 485, and gpio analog communication. Preferably, single wire half duplex mode wiring is simplest.
The electronic switching circuit is preferably a mos transistor.
The car light switch comprises a left steering switch, a right steering switch, a brake switch and a reversing switch.
The comparator circuit contains an operational amplifier chip, most commonly LM 358. The common ground uses a differential mode.
The sampling resistor circuit includes a sampling resistor, the resistance of which is determined according to the total current, generally 100mR to 5R.
The turning and double flashing relate to the type selection of the voice chip, and are determined according to the requirements of the voice data to be stored and the tone quality, and the working temperature range is also considered. The voice data is many, and the tone quality that requires is high, just needs to select the pronunciation chip of large capacity for use. Instead, a chip with a small capacity may be selected. The requirements of sound quality determine how much speech sampling rate is used and thus how much capacity is needed. Sampling rates of 8K, 16K, 32K are relatively common. At present, a plurality of voice chips can be realized in the market, most of the voice chips are produced by Taiwan, and the voice chips with the specifications of 040, 060 and 080 are usually required. 040 means 40 seconds of storage space for speech, 060, 080 and so on.
FIG. 1 is a common ground configuration front flashing light circuit. The positive line is derived from the output of the lock-out or keyless circuit. The sampling resistor is 2.2R. The electronic switch tube is selected from PMOS, such as IRFR5410, DH100P30D, etc. The flash signal is generated by the switching tube under the control of the mcu circuit Q, and the frequency is about 2 Hz. The comparison circuit selects an LM358 chip and a differential mode circuit.
Fig. 2 is a circuit for a back flash lamp in a common ground configuration. The 4 switching tubes respectively control 4 lamps. Usually, it is necessary to turn left or right, and backing up and braking are only selected when flashing. The sampling resistor is shared, and the comparison circuit can interrupt signals for the mcu circuit as long as one path is short-circuited.
Fig. 3 shows a common ground centralized control mode flash system with short-circuit protection.
The cathodes of the front flashing light and the rear flashing light are all grounded, and the other end of the front flashing light and the rear flashing light are controlled by a vehicle lamp switch circuit. If the left steering switch is turned on, the front and rear left steering lamps start to flicker.
The anodes of all switches in the vehicle lamp switch circuit are all connected with the cathode of the electronic switch circuit Q, namely the D pole of the PMOS switch tube. The switch tube generates flashing signals to the front flashing light and the rear flashing light of the whole vehicle, and simultaneously provides circuit protection. If the car lamp has a short circuit, the mcu circuit Q opens and closes the switch tube.
The sampling resistor is selected to be 2.2R, and the anode of the sampling resistor is connected with the anode wire. The positive line is derived from the output of the lock-out or keyless circuit.
The comparison circuit selects an LM358 chip and a differential mode circuit. When short circuit occurs, the signal of the comparison circuit triggers a short-circuit protection program of the mcu circuit Q to close the switch tube.
If the sampling resistor is cancelled and the short-circuit protection is realized by the internal resistance of the PMOS switching tube, the D pole signal and the S pole signal are divided and then connected with the input end of the LM358 chip differential circuit. At this time, the positive electrode line is connected with the S pole of the PMOS switching tube.
The rear flashing light wire harness comprises 4 wires of left steering, right steering, backing and braking, and belongs to one part of a large wire of an electric vehicle. Other lines in the main line can be communication lines, power lines, lock incoming lines, lock outgoing lines, rotating handle lines, three-gear lines, night lamp lines, patrol lines, P-gear lines and the like.
Fig. 4 is a common ground structure centralized control mode flash system without short-circuit protection, which is a specific example of the above system. And a sampling circuit Q and a comparison circuit Q are eliminated, so that the related cost is saved. The positive line is directly connected to the electronic switching circuit Q, i.e. the S-pole of the PMOS.
Fig. 5 shows a flash system with short-circuit protection in a common ground discrete control mode.
The mode is applied to the bus control system of the electric vehicle, the front flashing light is controlled by the front flashing light control circuit, the rear flashing light is controlled by the rear flashing light control circuit, and data are exchanged between the front flashing light and the rear flashing light by a communication line.
The cathodes of the front flashing light and the rear flashing light are all grounded, and the other end of the front flashing light and the rear flashing light is controlled by a vehicle lamp switch circuit or an electronic switch circuit.
The working principle of the front flashing light control circuit is as follows:
the anodes of all switches in the vehicle lamp switch circuit are all connected with the cathode of the electronic switch circuit Q, namely the D pole of the PMOS switch tube. The switch tube generates flashing signals to the front flashing light and the rear flashing light of the whole vehicle, and simultaneously provides circuit protection. If the car lamp has a short circuit, the mcu circuit Q opens and closes the switch tube.
The sampling resistor is selected to be 2.2R, and the anode of the sampling resistor is connected with the anode wire. The positive line is derived from the output of the lock-out or keyless circuit.
The comparison circuit selects an LM358 chip and a differential mode circuit. When short circuit occurs, the signal of the comparison circuit triggers a short-circuit protection program of the mcu circuit Q to close the switch tube.
If the sampling resistance circuit Q is cancelled and the short-circuit protection is realized by the internal resistance of the PMOS switching tube, the D pole and S pole signals are connected with the input end of the LM358 chip differential circuit after voltage division. At this time, the positive electrode line is connected with the S pole of the PMOS switching tube.
The communication line includes 1-4 lines, depending on the communication mode. Preferably, the invention adopts a single-wire half-duplex mode, and only needs 1 communication wire. The communication line belongs to a part of a large line of an electric vehicle. Other lines in the main line may have power lines, lock incoming lines, lock outgoing lines, etc.
The working principle of the back flashing light control circuit is as follows:
the negative pole of the electronic switch circuit H is respectively connected with the positive pole of the rear flashing light, and the switch tubes in the electronic switch circuit H generate flashing signals to the rear flashing light and provide circuit protection. If the car lamp has a short circuit, the mcu circuit H opens and closes all the switch tubes.
The sampling resistor is selected to be 2.2R, and the anode of the sampling resistor is connected with the anode wire. The positive line is derived from the output of the lock-out or keyless circuit.
The comparison circuit selects an LM358 chip and a differential mode circuit. When short circuit occurs, the signal of the comparison circuit triggers the short-circuit protection program of the mcu circuit H to close the switch tube.
The flash information of the back flash lamp is transmitted to the mcu circuit H by the mcu circuit Q through a communication line, and all switches of the back flash lamp are controlled by the mcu circuit Q. The flashing of the front turn signal lamp and the rear turn signal lamp are synchronous.
Fig. 6 is a common ground structure discrete control mode flash system without short circuit protection. Is a special case of the aforementioned system. A sampling circuit Q, a comparison circuit Q, a sampling circuit H and a comparison circuit H are eliminated, and the related cost is saved. The positive line is directly connected with the electronic switch circuit Q and the electronic switch circuit H.
Fig. 7 shows a front flashing light circuit in a common positive structure. The negative wire is from the battery. The sampling resistor is 2.2R. The electronic switch tube is selected from NMOS, such as STP80NF70, STP75NF75, etc. The flash signal is generated by the switching tube under the control of the mcu circuit Q, and the frequency is about 2 Hz. The comparison circuit selects LM358 chip.
Fig. 8 is a circuit of a rear flashing light in a common anode configuration. The 4 switching tubes respectively control 4 lamps. Usually, it is necessary to turn left or right, and backing up and braking are only selected when flashing. The sampling resistor is shared, and the comparison circuit can interrupt signals for the mcu circuit as long as one path is short-circuited.
Fig. 9 shows a common anode structure centralized control mode flash system with short-circuit protection.
The positive poles of the front flashing light and the rear flashing light are all connected with a positive line, and the other ends of the front flashing light and the rear flashing light are controlled by a vehicle lamp switch circuit. If the left turn switch is turned on, the front and rear left turn lights start to blink.
The positive line is derived from a lock-out or keyless output.
The cathodes of all switches in the vehicle lamp switch circuit are all connected with the anode of the electronic switch circuit Q, namely the D pole of the NMOS switch tube. The switch tube generates flashing signals to the front flashing light and the rear flashing light of the whole vehicle, and simultaneously provides circuit protection. If the car lamp has a short circuit, the mcu circuit Q opens and closes the switch tube.
The sampling resistor is 2.2R, and the negative electrode of the sampling resistor is connected with a negative electrode wire. The negative wire comes from the storage battery.
The comparison circuit selects LM358 chip. When short circuit occurs, the output signal of the comparison circuit Q triggers a short-circuit protection program of the mcu circuit Q to close the switch tube.
If the sampling resistor is removed and the short-circuit protection is realized by the internal resistance of the NMOS switch tube, the D pole of the sampling resistor is connected with the input end of the LM358 chip circuit. At this time, the negative electrode wire is connected with the S pole of the PMOS switch tube.
The rear flashing light wire harness comprises 4 wires of left steering, right steering, backing and braking, and belongs to one part of a large wire of an electric vehicle. Other lines in the main line can be communication lines, power lines, lock incoming lines, lock outgoing lines, rotating handle lines, three-gear lines, night lamp lines, patrol lines, P-gear lines and the like.
Fig. 10 shows a common anode structure centralized control mode flash system without short-circuit protection. Is a special case of the aforementioned system. And a sampling circuit Q and a comparison circuit Q are eliminated, so that the related cost is saved. The negative line is directly connected to the S pole of the electronic switching circuit Q, i.e. NMOS.
FIG. 11 shows a common anode structure with a short-circuit protection flash system in a discrete control mode.
The mode is applied to the bus control system of the electric vehicle, the front flashing light is controlled by the front flashing light control circuit, the rear flashing light is controlled by the rear flashing light control circuit, and data are exchanged between the front flashing light and the rear flashing light by a communication line.
The anodes of the front flashing light and the rear flashing light are all positive lines, and the other ends of the front flashing light and the rear flashing light are controlled by a vehicle lamp switch circuit or an electronic switch circuit.
The positive line is derived from the output of the lock-out or keyless circuit.
The working principle of the front flashing light control circuit is as follows:
the cathodes of all switches in the vehicle lamp switch circuit are all connected with the anode of the electronic switch circuit Q, namely the D electrode of the NMOS switch tube. The switch tube generates flashing signals to the front flashing light and the rear flashing light of the whole vehicle, and simultaneously provides circuit protection. If the car lamp has a short circuit, the mcu circuit Q opens and closes the switch tube.
The sampling resistor is 2.2R, and the negative electrode of the sampling resistor is connected with a negative electrode wire.
The comparison circuit selects LM358 chip. When short circuit occurs, the signal of the comparison circuit triggers a short-circuit protection program of the mcu circuit Q to close the switch tube.
If the sampling resistance circuit Q is cancelled and the short-circuit protection is realized by the internal resistance of the NMOS switch tube, the D pole of the sampling resistance circuit Q is connected with the input end of the LM358 chip circuit. At this time, the negative electrode wire is connected with the S pole of the NMOS switch tube.
The communication line includes 1-4 lines, depending on the communication mode. Preferably, the invention adopts a single-wire half-duplex mode, and only needs 1 communication wire. The communication line belongs to a part of a large line of an electric vehicle. Other lines in the main line may have power lines, lock incoming lines, lock outgoing lines, etc.
The working principle of the back flashing light control circuit is as follows:
the positive pole of the electronic switch circuit H is respectively connected with the negative pole of the rear flashing light, and the switch tubes in the electronic switch circuit H generate flashing signals to the rear flashing light and provide circuit protection. If the car lamp has a short circuit, the mcu circuit H opens and closes all the switch tubes.
The sampling resistor is 2.2R, and the negative electrode of the sampling resistor is connected with a negative electrode wire. The negative wire is from the battery.
The comparison circuit selects LM358 chip. When short circuit occurs, the signal of the comparison circuit triggers the short-circuit protection program of the mcu circuit H to close the switch tube.
The flash information of the back flash lamp is transmitted to the mcu circuit H by the mcu circuit Q through a communication line, and all switches of the back flash lamp are controlled by the mcu circuit Q. The flickering of the front steering lamp and the rear steering lamp is synchronous, including double flashing.
Fig. 12 shows a common anode structure discrete control mode flash system without short-circuit protection. Is a special case of the aforementioned system. A sampling circuit Q, a comparison circuit Q, a sampling circuit H and a comparison circuit H are eliminated, and the related cost is saved. The negative line is directly connected with the electronic switch circuit Q and the electronic switch circuit H.
FIG. 13 is a diagram of a common ground configuration turn-first front flash circuit. The sampling resistor is selected to be 2.2R, the anode of the sampling resistor is connected with the anode line, and the cathode of the sampling resistor is connected with the electronic switching tube. The 2 switch tubes respectively control the left and right steering lamps. The mcu circuit is respectively connected with the left and the right switching tubes to control the switching states of the left and the right switching tubes.
FIG. 14 is a front flasher circuit with priority for a common anode configuration. The sampling resistor is selected to be 2.2R, the negative electrode of the sampling resistor is connected with a negative electrode wire, and the positive electrode of the sampling resistor is connected with an electronic switching tube. The 2 switch tubes respectively control the left and right steering lamps. The mcu circuit is respectively connected with the left and the right switching tubes to control the switching states of the left and the right switching tubes.
The foregoing embodiments and description have been provided merely to illustrate the principles of the invention and one example thereof, and various changes and modifications may be made based on the principles and within the scope of the invention as defined by the appended claims.

Claims (10)

1. An intelligent flash system, characterized in that the intelligent flash system is divided into 2 control modes: a centralized control mode and a discrete control mode;
the centralized control mode comprises a front flashing light, a rear flashing light, a front flashing light control circuit and a rear flashing light wire harness; the front flashing light control circuit is connected with the front flashing light and the rear flashing light wire harness, and the rear flashing light wire harness is connected with the rear flashing light; the rear flashing light wire harness belongs to one part of a large wire of the electric vehicle;
the discrete control mode comprises a front flashing light, a rear flashing light, a front flashing light control circuit, a rear flashing light control circuit and a communication line; the front flashing light control circuit is connected with the front flashing light and the communication line, the communication line is connected with the rear flashing light control circuit, and the rear flashing light control circuit is connected with the rear flashing light; the communication line belongs to one part of a large line of the electric vehicle;
the front flashing light control circuit comprises a sampling resistor circuit Q, a comparison circuit Q, an electronic switch circuit Q, a car light switch circuit and a mcu circuit Q; the sampling resistance circuit Q is connected with the comparison circuit Q and the electronic switch circuit Q; the electronic switching circuit Q is connected with the vehicle lamp switching circuit; the mcu circuit Q is connected with the comparison circuit Q, the electronic switch circuit Q and the car lamp switch circuit; the car lamp switch circuit is connected with the front flashing lamp;
the voltage at two ends of the sampling resistor circuit Q reflects the current flowing through the related vehicle lamp, and when the voltage value of the sampling resistor circuit Q is larger than a set value, the output signal of the comparison circuit Q triggers the short-circuit protection program of the mcu circuit Q; the mcu circuit Q closes the electronic switch circuit Q to cut off current, so that short-circuit protection is realized;
the rear flashing light control circuit comprises a sampling resistor circuit H, a comparison circuit H and an electronic switch circuit H, mcu circuit H; the sampling resistance circuit H is connected with the comparison circuit H and the electronic switch circuit H; the electronic switch circuit H is connected with the rear flashing light; the mcu circuit H is connected with the comparison circuit H and the electronic switch circuit H;
the voltage at two ends of the sampling resistor circuit H reflects the current flowing through the related vehicle lamp, and when the voltage value of the sampling resistor circuit H is greater than a set value, the output signal of the comparison circuit H triggers the short-circuit protection program of the mcu circuit H; the mcu circuit H closes the electronic switch circuit H to cut off current, so that short-circuit protection is realized;
the intelligent flashing system is divided into 2 structures: a common ground structure and a common anode structure;
one end of the front flashing lamp and one end of the rear flashing lamp of the common ground structure are both connected with a negative wire, and one end of the sampling resistor circuit Q or/and one end of the sampling resistor circuit H are both connected with a positive wire;
one end of the front flashing lamp and one end of the rear flashing lamp of the common anode structure are both connected with a positive electrode wire, and one end of the sampling resistor circuit Q or/and one end of the sampling resistor circuit H are both connected with a negative electrode wire;
the intelligent flash system is divided into 4 types: the system comprises a common-ground structure centralized control mode system, a common-ground structure discrete control mode system, a common-anode structure centralized control mode system and a common-anode structure discrete control mode system.
2. The intelligent flash system of claim 1, wherein: the car light switch circuit in the centralized control mode comprises a reversing switch; the rear flashing light wire harness comprises a reversing line; the rear flashing light comprises a reversing light; one end of the reversing switch is connected with the electronic switch circuit Q, and the other end of the reversing switch is connected with the rear flashing light wire harness and is connected with the reversing light through the reversing wire; the mcu circuit Q controls the electronic switch circuit Q, and acts according to a set switching frequency to generate a flash signal, when the reversing switch is switched on, the flash signal is transmitted to the reversing lamp along the reversing line through the reversing switch to drive the reversing lamp to flash;
the vehicle lamp switch circuit in the discrete control mode comprises a reversing switch; the electronic switch circuit H comprises a reversing switch tube; the rear flashing light comprises a reversing light; the reversing switch is connected with the mcu circuit Q; when the mcu circuit Q detects that the reversing switch is switched on, information is transmitted to the mcu circuit H through the communication line, and the mcu circuit H controls the reversing switch tube to drive the reversing lamp to flicker.
3. The intelligent flash system of claim 1, wherein: the car lamp switching circuit in the centralized control mode comprises a brake switch; the rear flashing light wire harness comprises a brake cable; the rear flashing light comprises a brake light; one end of the brake switch is connected with the electronic switch circuit Q, the other end of the brake switch is connected with the brake cable, and the brake switch is connected with the brake lamp through the brake cable; the mcu circuit Q controls the electronic switch circuit Q, and acts according to a set switching frequency to generate a flash signal, when the brake switch is switched on, the flash signal is transmitted to the brake lamp along the brake cable through the brake switch to drive the brake lamp to flash;
the car light switch circuit in the discrete control mode comprises a brake switch; the electronic switching circuit H comprises a brake switching tube; the rear flashing light comprises a brake light; the brake switch is connected with the mcu circuit Q; when the mcu circuit Q detects that the brake switch is switched on, the communication line transmits the communication line to the mcu circuit H, and the mcu circuit H controls the brake switch tube and drives the brake lamp to flicker; the frequency of the flash signal is derived from the mcu circuit Q or the mcu circuit H.
4. The intelligent flash system of claim 1, wherein: the lamp switch circuit in the centralized control mode comprises a left steering switch and a right steering switch; the front flashing light comprises a left steering light Q and a right steering light Q; the rear flashing light comprises a left steering light H and a right steering light H; the rear flashing light wire harness comprises a left turning wire and a right turning wire; one end of each of the left steering switch and the right steering switch is connected with the electronic switch circuit Q, the other end of each of the left steering switch and the right steering switch is connected with the left steering lamp Q, the right steering lamp Q and the rear flashing lamp wire harness, and the left steering lamp H and the right steering lamp H are connected through the left steering line and the right steering line; the mcu circuit Q is connected with the left steering switch and the right steering switch and detects the switching state of the left steering switch and the right steering switch; the mcu circuit Q controls the electronic switch circuit Q, and acts according to a set switching frequency to generate a flashing signal, when the left steering switch or the right steering switch is switched on, the flashing signal directly drives the left steering lamp Q or the right steering lamp Q to flash on one hand, and transmits the flashing signal to the left steering lamp H or the right steering lamp H along the left turning line or the right turning line on the other hand to drive the left steering lamp H or the right steering lamp H to flash on the other hand through the left steering switch or the right steering switch; the left turn light Q and the left turn light H are controlled by the same electronic switch circuit Q, so that the flickering is synchronous; similarly, the right turn light Q and the right turn light H are controlled by the same electronic switch circuit Q, so that the flickering is synchronous;
the lamp switching circuit in the discrete control mode comprises a left steering switch and a right steering switch; the mcu circuit Q is connected with the left steering switch and the right steering switch; the front flashing light comprises a left steering light Q and a right steering light Q; the electronic switching circuit H comprises a left-turning switching tube H and a right-turning switching tube H; the rear flashing light comprises a left steering light H and a right steering light H; one end of each of the left steering switch and the right steering switch is connected with the electronic switch circuit Q, and the other end of each of the left steering switch and the right steering switch is connected with the left steering lamp Q and the right steering lamp Q; the mcu circuit Q is connected with the left steering switch and the right steering switch and detects the switching state of the left steering switch and the right steering switch; the mcu circuit Q controls the electronic switch circuit Q, and acts according to a set switching frequency to generate a flash signal, when the left steering switch or the right steering switch is switched on, the flash signal directly drives the left steering lamp Q or the right steering lamp Q to flash through the left steering switch or the right steering switch on one hand, and on the other hand, the mcu circuit Q transmits the detected turning information and the flash signal to the mcu circuit H through the communication line, and the mcu circuit H controls the left steering switch tube H or the right steering switch tube H to drive the left steering lamp H or the right steering lamp H to flash; the left turn light Q and the left turn light H are controlled by the same electronic switch circuit Q, so that the flickering is synchronous; similarly, the right turn light Q and the right turn light H are controlled by the same electronic switch circuit Q, so that the flickering is synchronous;
meanwhile, for the centralized control mode and the discrete control mode, the mcu circuit Q comprises an mcu chip, a voice chip, a power amplifier circuit and a loudspeaker circuit interface; the voice chip comprises voice sections of 'left turn-please-note' and 'right turn-please-note'; when the mcu chip detects that the left steering switch or the right steering switch is switched on, the voice chip is controlled to play the voice signals of 'left turn-please note' or 'right turn-please note', the voice signals are amplified by the power amplification circuit, and then the voice signals are used for driving a loudspeaker to emit sounds capable of distinguishing 'left turn and right turn' through the loudspeaker circuit interface.
5. The intelligent flash system of claim 4, wherein: the car light switch circuit comprises a double-flash switch besides the left steering switch and the right steering switch; when the double-flash switch is switched on, the left steering switch and the right steering switch are simultaneously switched on;
in the centralized control mode: when the double-flash switch is switched on, the flash signal directly drives the left steering lamp Q and the right steering lamp Q to flash synchronously on one hand through the left steering switch and the right steering switch, and on the other hand, the flash signal is transmitted to the left steering lamp H and the right steering lamp H along the left steering line and the right steering line to drive the left steering lamp H and the right steering lamp H to flash synchronously and double;
in the discrete control mode: when the double-flash switch is switched on, the flash signal directly drives the left steering lamp Q and the right steering lamp Q to flash synchronously on one hand through the left steering switch and the right steering switch, on the other hand, the flash signal is transmitted to the mcu circuit H through the communication wire by the mcu circuit Q, and the mcu circuit H simultaneously controls the left steering switch tube H and the right steering switch tube H to drive the left steering lamp H and the right steering lamp H to flash synchronously.
6. An intelligent flash system according to claim 4 and claim 5, wherein: the car light switch circuit comprises an independent double-flash switch besides the left steering switch and the right steering switch, and the signals of the left steering switch and the right steering switch are not influenced by the switching-on of the double-flash switch; the electronic switching circuit Q comprises a left-turn switching tube Q and a right-turn switching tube Q; the left steering switch tube Q and the right steering switch tube Q are respectively connected with the left steering switch and the right steering switch or respectively connected with the left steering lamp Q and the right steering lamp Q; the mcu circuit Q is connected with the double-flash switch, the left-turn switch tube Q and the right-turn switch tube Q;
in the centralized control mode: when the double-flash switch is switched on and the left steering switch and the right steering switch are not switched on, the mcu circuit Q judges that the double-flash mode is adopted, the mcu circuit Q controls the left steering switch tube Q and the right steering switch tube Q, and the left steering switch tube Q and the right steering switch tube Q both operate according to a set switching frequency to generate 2 paths of flash signals, and the flash signals respectively pass through the left steering switch and the right steering switch or directly drive the left steering lamp Q and the right steering lamp Q to flash synchronously, and on the other hand, the flash signals are transmitted to the left steering lamp H and the right steering lamp H along the left turning line and the right turning line to drive the left steering lamp H and the right steering lamp H to flash synchronously, so that the double-flash function is realized;
when the left steering switch or the right steering switch is switched on, no matter whether the double-flash switch is switched on or not, the mcu circuit Q judges that the steering mode is the steering mode, the mcu circuit Q controls the left steering switch tube Q or the right steering switch tube Q, 1 path of flash signals are generated according to the action of set switching frequency, the flash signals respectively pass through the left steering switch or the right steering switch or directly drive the left steering lamp Q or the right steering lamp Q to flash, and on the other hand, the flash signals are transmitted to the left steering lamp H or the right steering lamp H along the left turning line or the right turning line to drive the left steering lamp H or the right steering lamp H to flash synchronously, so as to realize the function of steering priority;
in the discrete control mode: when the double-flash switch is switched on and the left steering switch and the right steering switch are not switched on, the mcu circuit Q judges that the double-flash mode is adopted, controls the left steering switch tube Q and the right steering switch tube Q, and acts according to a set switching frequency to generate 2 paths of flash signals, the flash signals respectively pass through the left steering switch and the right steering switch or directly drive the left steering lamp Q and the right steering lamp Q to flash synchronously, on the other hand, the mcu circuit Q transmits double-flash information to the mcu circuit H through the communication line, and the mcu circuit H controls the left steering switch tube H and the right steering switch tube H to drive the left steering lamp H and the right steering lamp H to flash synchronously, so that the double-flash function is realized;
when the left steering switch or the right steering switch is switched on, no matter whether the double-flash switch is switched on or not, the mcu circuit Q judges that the steering mode is the steering mode, the mcu circuit Q controls the left steering switch tube Q or the right steering switch tube Q, and acts according to a set switching frequency to generate 1 path of flash signals, the flash signals respectively pass through the left steering switch or the right steering switch or directly drive the left steering lamp Q or the right steering lamp Q to flash, on the other hand, the mcu circuit Q transmits steering information to the mcu circuit H through the communication line, and the mcu circuit H controls the left steering switch tube H or the right steering switch tube H to drive the left steering lamp H or the right steering lamp H to flash synchronously, so as to realize the function of steering priority.
7. An intelligent vehicle front part, which is applied to the intelligent flash system of any one of claims 1 to 6, and comprises the front flash lamp control circuit; the intelligent part in front of the vehicle is connected with all electric appliances in front of the vehicle, and the processed electric appliances are transmitted to the motor controller or/and the tail lamp through the communication line; the intelligent vehicle front part also comprises a combination of a voice and power amplifier circuit, a remote control anti-theft circuit, a combined rotating handle circuit, a combined switch circuit, an instrument display function circuit and a key-free circuit.
8. A motor controller characterized by: the controller is applied to the intelligent flash system of any one of claims 1 to 6, and comprises the back flash control circuit.
9. A combination switch, characterized by: the combination switch is applied to the intelligent flash system of any one of claims 1 to 6; the combination switch comprises 2 to 7 switch components, a body, an output line head and a plug; said combination switch having a collinear connection between said switch assemblies within said body; the combined switch integrates the output lines of all the switch components combined above the combined switch into a plug; the plug corresponds to a socket on a circuit board connected with the plug so as to be plugged into the socket together; for the application with the multiplexing of the switch component, the combined switch is used for silk-screening related characters and icons at the position of the switch component of the body;
the switch assembly comprises a left steering switch, a right steering switch and a double-flash switch; the switching-on of the double-flash switch does not affect the signals of the left steering switch and the right steering switch.
10. An electric vehicle, characterized in that: the electric vehicle is provided with the intelligent flashing system of any one of claims 1 to 6, the vehicle front intelligent component of claim 7, the motor controller of claim 8 or the combination switch of claim 9.
CN202110202293.1A 2021-02-24 2021-02-24 Intelligent flashing system, intelligent vehicle front component, motor controller, combination switch and electric vehicle Pending CN112706690A (en)

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CN202110202293.1A CN112706690A (en) 2021-02-24 2021-02-24 Intelligent flashing system, intelligent vehicle front component, motor controller, combination switch and electric vehicle

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CN202110202293.1A CN112706690A (en) 2021-02-24 2021-02-24 Intelligent flashing system, intelligent vehicle front component, motor controller, combination switch and electric vehicle

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114590195A (en) * 2022-03-10 2022-06-07 三一电动车科技有限公司 Steering lamp control circuit, driving method and vehicle

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114590195A (en) * 2022-03-10 2022-06-07 三一电动车科技有限公司 Steering lamp control circuit, driving method and vehicle
CN114590195B (en) * 2022-03-10 2023-05-26 三一电动车科技有限公司 Steering lamp control circuit, driving method and vehicle

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