CN206589695U - A kind of multi-functional constant-speed cruising device for including battery main switch - Google Patents

A kind of multi-functional constant-speed cruising device for including battery main switch Download PDF

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CN206589695U
CN206589695U CN201720309794.9U CN201720309794U CN206589695U CN 206589695 U CN206589695 U CN 206589695U CN 201720309794 U CN201720309794 U CN 201720309794U CN 206589695 U CN206589695 U CN 206589695U
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switch
unit
master controller
battery main
signal input
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CN201720309794.9U
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邱强梅
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邱强梅
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Abstract

A kind of multi-functional constant-speed cruising device for including battery main switch, including fuse, battery main switch, master controller, display, the battery main switch, display is electrically connected with master controller, the battery main switch input is electrically connected by fuse with the feeder ear of automotive electrical system, also include cruise switch, multimedia is switched, the cruise switch, multimedia switch is fixed on vehicle steering, the cruise switch, multimedia switch is electrically connected by wire harness or plug with master controller, the master controller is provided with external wake signal input part, the external wake signal input part is electrically connected with automotive electrical system, the master controller also passes through the accelerator pedal sensor of wire harness or plug and automobile, Engine ECU, vehicle-mounted data communication bus is electrically connected.The utility model is simple in construction, can force to cancel cruise, to provide brake signal function of redundancy protection, but also provided with multimedia switch, adds the function of device.

Description

A kind of multi-functional constant-speed cruising device for including battery main switch
Technical field
The utility model is related to constant-speed cruising device field, espespecially a kind of multi-functional cruise for including battery main switch Device.
Background technology
With expanding economy, car ownership is quickly increasing, and the trip mode of people is also changing, more and more People's selection self-driving trip.Driving over a long distance easily makes driver produce fatigue, is unfavorable for safety traffic.Therefore, automobile constant speed is patrolled Boat device just arises at the historic moment, using constant-speed cruising device, can mitigate human pilot fatigue, and improve the fuel-economy of automobile Property.So, constant-speed cruising device is installed in increasing vehicle selection.Existing constant-speed cruising device has the following disadvantages:
1. being connected using throttle signal collector and output device with vehicle, the throttle signal collector and output device are again It is connected with cruise master controller, accordingly, it would be desirable to additionally increase the device, and also the apparatus structure is complicated.
2. not providing external master switch, if catastrophe failure occurs in constant-speed cruising device under steam, driver is not Timely and effectively constant-speed cruising device can be closed.
3. only acquire brake signal all the way, it is impossible to effectively provide redundancy protecting.
4. traditional cruise can only realize constant speed function, not comprising multimedia control function, function is single.
Utility model content
To solve the above problems, the utility model provides a kind of determining comprising battery main switch and with safety shutdown function Fast cruising device, even if catastrophe failure occurs for the present apparatus, driver still can release cruise, simplify product structure, And improve the safety and reliability of product.
To achieve the above object, the technical solution adopted in the utility model is:It is a kind of multi-functional comprising battery main switch Constant-speed cruising device, including fuse, battery main switch, master controller, display, the battery main switch, display with Master controller is electrically connected, and the battery main switch input is electrically connected by fuse with the feeder ear of automotive electrical system, also Switched including cruise switch, multimedia, the cruise switch, multimedia switch are fixed on vehicle steering, and the cruise is opened Close, multimedia switch is electrically connected by wire harness or plug with master controller, the master controller is inputted provided with external wake signal End, the external wake signal input part is electrically connected with automotive electrical system, during the external wake signal input part high level Operating voltage is provided for each circuit in master controller inside, master controller not work during the external wake signal input part low level Make, the master controller is also communicated by wire harness or plug with the accelerator pedal sensor, Engine ECU, vehicle-mounted data of automobile Bus is electrically connected.
Specifically, the master controller includes MCU units, power subsystem, CAN communication unit, DAC units, voltage buffer Unit, signal switch unit, display communication unit, divider filter unit, the MCU units pass through CAN communication unit and car Data communication bus connection is carried, the MCU units are connected by power subsystem with battery main switch, and the MCU units pass through aobvious Show that device communication unit is connected with display, the MCU units are switched by divider filter unit and cruise switch, multimedia, added Speed pedal sensor is connected, and the MCU units are connected with signal switch unit, the accelerator pedal sensor, voltage buffer list Member is connected with signal switch unit input, and the Engine ECU is connected with signal switch unit output end, the signal switching Unit is also connected with MCU units, and the MCU units are also connected with DAC units, and the DAC units are connected with voltage buffer unit, The MCU units, display communication unit, CAN communication unit, DAC units, voltage buffer unit, signal switch unit with Power subsystem output end is connected, and the Enable Pin of the power subsystem is connected with external wake signal input part, the external wake During signal input part high level, power subsystem provides operating voltage for each road circuit inside master controller.
Specifically, the master controller is additionally provided with outer protection signal input part, the outer protection signal input part with Automotive electrical system is electrically connected, and the outer protection signal input part is also connected with signal switch unit, the outer protection letter Number input cancels cruise when reaching setting.
Specifically, the brake lamp positive pole connection of the outer protection signal input part and automobile.
Specifically, the external wake signal input part is electrically connected with automobile ACC circuits or automobile sensor 5V power supply circuits Connect.
Specifically, the battery main switch input is electrically connected by fuse with automobile storage battery.
The beneficial effects of the utility model are:The utility model mainly include master controller, display, cruise switch, Multimedia is switched, and also external battery main switch and fuse are simple in construction, and master controller internal electric source unit passes through power supply Master switch and fuse are connected with battery, obtain power supply needed for present apparatus work, and can pass through battery main switch control The on/off of the present apparatus, if catastrophe failure occurs in constant-speed cruising device under steam, driver will timely and effectively can determine Fast cruising device is closed.Master controller is additionally provided with outer protection signal input part, when stepping on brake, can force to cancel constant speed Cruise, to provide function of redundancy protection to brake signal, drastically increases the safety and reliability of device.But also be provided with Multimedia is switched, and adds the function of device.
Brief description of the drawings
The general structure connection diagram that it is originally utility model that Fig. 1, which is,.
Fig. 2 be the utility model internal circuit block structured flowchart and with external connection schematic diagram.
Fig. 3 is the circuit structure diagram of power subsystem in this specific embodiment.
Fig. 4 is the circuit structure diagram of DAC units and voltage buffer unit in this specific embodiment.
Fig. 5 is the circuit structure diagram of signal switch unit in this specific embodiment.
Fig. 6 is the circuit structure diagram of CAN communication unit in this specific embodiment.
Embodiment
Refer to shown in Fig. 1-2, the utility model on a kind of multi-functional constant-speed cruising device for including battery main switch, Including fuse, battery main switch, master controller, display, the battery main switch, display are electrically connected with master controller Connect, the battery main switch input is connected by fuse with storage battery, in addition to cruise switch, multimedia switch, institute State cruise switch, multimedia switch to be fixed on vehicle steering, the cruise switch, multimedia switch pass through wire harness or plug Electrically connected with master controller, the master controller be provided with external wake signal input part, the external wake signal input part with Automotive electrical system is electrically connected, and work is provided for each circuit inside master controller during the external wake signal input part high level Voltage, master controller is not worked during the external wake signal input part low level, and the master controller also by wire harness or is inserted Head is electrically connected with the accelerator pedal sensor of automobile, Engine ECU, vehicle-mounted data communication bus.
Compared with prior art, the utility model mainly includes master controller, display, cruise switch, multimedia switch, Also external battery main switch and fuse, simple in construction, master controller internal electric source unit passes through battery main switch and guarantor Dangerous silk is connected with battery, obtains power supply needed for present apparatus work, and the electricity of the present apparatus can be controlled by battery main switch Source break-make, if catastrophe failure occurs in constant-speed cruising device under steam, driver can be timely and effectively by constant-speed cruising device Close.Master controller is additionally provided with outer protection signal input part, when stepping on brake, can force to cancel cruise, with right Brake signal provides function of redundancy protection, drastically increases the safety and reliability of device.But also opened provided with multimedia Close, add the function of device.
Specifically, the master controller includes MCU units, power subsystem, CAN communication unit, DAC units, voltage buffer Unit, signal switch unit, display communication unit, divider filter unit, the MCU units pass through CAN communication unit and car Data communication bus connection is carried, the MCU units are connected by power subsystem with battery main switch, and the MCU units pass through aobvious Show that device communication unit is connected with display, the MCU units are switched by divider filter unit and cruise switch, multimedia, added Speed pedal sensor is connected, and the MCU units are connected with signal switch unit, the accelerator pedal sensor, voltage buffer list Member is connected with signal switch unit input, and the Engine ECU is connected with signal switch unit output end, the signal switching Unit is also connected with MCU units, and the MCU units are also connected with DAC units, and the DAC units are connected with voltage buffer unit, The MCU units, display communication unit, CAN communication unit, DAC units, voltage buffer unit, signal switch unit with Power subsystem output end is connected, and the Enable Pin of the power subsystem is connected with external wake signal input part.Wherein, this is specific real The Enable Pin for applying exception portion wake-up signal input and power subsystem is connected, when wake-up signal voltage is higher than threshold values, power supply list Member work, power supply is provided for other circuits, and when wake-up signal is less than threshold values, power subsystem is stopped, non-transformer output, To reduce current drain.In addition, external wake signal input part can be connected with vehicle ACC circuits, can also be with vehicle sensory Device 5V power supply circuits are connected.
Specifically, the master controller is additionally provided with outer protection signal input part, the outer protection signal input part with Automotive electrical system is electrically connected, and the outer protection signal input part is also connected with signal switch unit, the outer protection letter Number input cancels cruise when reaching setting.
Specifically, the brake lamp positive pole connection of the outer protection signal input part and automobile.
Using such scheme, redundancy protecting can be carried out to brake signal.
The utility model is further described below by specific embodiment.
This specific embodiment mainly includes fuse, battery main switch, master controller and display, and is used for and vehicle Wire harness and plug needed for being electrically connected.Power subsystem, CAN communication unit, MCU units, DAC are included inside master controller Unit, voltage buffer unit, signal switch unit, display communication unit and divider filter unit.Master controller internal electric source Unit is connected by battery main switch and fuse with battery, obtains power supply needed for present apparatus work, and can pass through electricity Source master switch controls the on/off of the present apparatus, and power subsystem is total to by battery main switch and external wake signal input part simultaneously With control, when battery main switch is closed and external wake signal is high level, power subsystem is started working, and is in master controller Each circuit in portion provides corresponding operating voltage, system starts.
MCU units in master controller carry out CAN communication by CAN communication unit and automotive electrical system, by receiving CAN data on vehicle-mounted data communication bus, to read related data during vehicle operation, such as engine speed, speed, brake The signals such as pedal position, clutch pedal position, while operation that MCU units also can be according to driver or corresponding state of a control Specific CAN data are sent to automotive electrical system by CAN communication unit, to realize corresponding function.
MCU units in master controller are passed by divider filter unit and cruise switch, multimedia switch and accelerator pedal Sensor is electrically connected, so as to obtain operation information of the driver to cruise switch, multimedia switch and accelerator pedal sensor.Example Such as:Driver presses the mute key of multimedia switch, now, and multimedia switch can export a specific voltage, and the voltage leads to Cross divider filter unit to carry out after partial pressure and filtering, then send MCU units to, MCU units are detected after this voltage, pass through electricity What pressure value was judged to press is mute key, and then MCU units are just sent to automotive electrical system by CAN communication unit and represent quiet The specific CAN signal of sound function, after vehicle multimedia module receives the CAN signal, carries out this Jing Yin action so that Vehicle audio system is Jing Yin, similarly, can also send specific CAN data and give automobile display instrument, to realize specific display Function.
Signal switch unit inside main controller receives two-way input signal and provides output signal all the way, wherein receiving car The signal of accelerator pedal sensor and main controller builtin voltage buffer cell, and select send which signal to vehicle hair Motivation ECU.For example:Driver's operation constant-speed-cruise switch starts after constant speed, and MCU units can be according to the dependency number of vehicle operation According to the data signal of current desired accelerator pedal position being calculated, the data signal passes to DAC units, by DAC units Analog signal is transformed into, then signal switch unit is passed to by voltage buffer unit, is passed to and started by signal switch unit ECU, realizes constant speed function.
Wherein, signal switch unit is controlled jointly by power subsystem, MCU units and outer protection signal input part tripartite simultaneously System.When power subsystem work, the action of MCU unit command signals switch unit and outer protection signal input part meet the requirements, Signal switch unit enters switching state, sends the output signal of voltage buffer unit to Engine ECU, to realize that constant speed is patrolled Boat function.If an any of the above described side is unsatisfactory for condition, signal switch unit reverts to reset state, now, by accelerator pedal The signal of sensor is transferred to Engine ECU, cancels cruise function.Signal switch unit has in this specific embodiment Two states, are original state and switching state respectively;During original state, signal switch unit is by vehicle accelerator pedal sensor Directly electrically connected with Engine ECU, while cutting off the electrical connection of voltage buffer unit and Engine ECU;During switching state, signal Switch unit cuts off the electrical connection of vehicle accelerator pedal sensor and Engine ECU, while by voltage buffer unit and engine ECU is directly electrically connected.Display communication unit is electrically connected with MCU units, power subsystem and display respectively, while display is logical Cross display communication unit and carry out digital communication with MCU units, to show corresponding working condition and data.
This specific embodiment power unit circuit figure as shown in figure 3, automotive electrical system provide a standard OBD socket, The positive source pin 16 of its socket is connected by fuse F1 with battery main switch K1, then by diode D2 and power supply core Piece U19 input pin 1 is connected, while being parallel with the electricity strobed between power supply chip U19 input and ground Hold C12 and U6, power supply chip U19 output pin 5 is connected with inductance U2, is parallel between inductance U2 output end and ground Electric capacity U8, C17, C14, C21 and C18, power subsystem provide 5V operating voltages for other circuits in system.Power supply chip U19's Pin 2 is external wake signal input part, is connected with the automobile engine ECU sensor 5V supply voltages provided, when automobile electricity When gas system works, the power supply chip U19 voltage of pin 2 is 5V, and power supply chip U19 starts working, after ignition switch is closed, The power supply chip U19 voltage of pin 2 is 0V, and power supply chip U19 is stopped, and output voltage is 0, and current drain is minimum.
The circuit diagram of this specific embodiment DAC units and voltage buffer unit as shown in figure 4, using two-way DAC chip and Two-way voltage buffer circuit, two-way circuit structure is identical, and wherein M5 and M6 are D/A conversion chips, and M2 is operation amplifier Device, M2 output end is connected with reverse input end, constitutes the circuit form of voltage follower, resistance R7 and electric capacity C22 are constituted The integrating circuit of filter action.Chip M5 pin 1 is analog signal output, is connected with integrating circuit input, integration electricity Road output end is connected with operational amplifier M2 input pin 5 in the same direction, the output signal V-BUFF2 after buffering, is reconnected To signal switch unit.
The circuit diagram of this specific embodiment signal switch unit is as shown in figure 5, main by relay driving chip U1, relay Device U18, diode D7, diode D8, electric capacity C19 compositions.Chip U1 pin 8 obtains 12V operating voltages from power subsystem, its Pin 2 is connected with MCU chip PA0 pins, and pin 3 is connected to relay U18 coil electrode, relay by diode D8 U18 coil negative pole is connected with automotive electrical system, to provide a redundancy protecting.Relay U18 is that DPDT is automatically multiple Bit architecture, its lever arm pin 6 and pin 3 are connected with automobile engine ECU, and to Engine ECU output voltage signal, its is normally closed Contact pin 7 and pin 2 are connected with the output signal of car ACCEL position sensor, its normally opened contact pin 5 and pin 4 It is connected to the output end of voltage buffer unit.Relay U18 is used for selecting to be to pass to the acceleration pedal position signal of automobile The output signal of voltage buffer unit is still passed to Engine ECU by Engine ECU.
In this specific embodiment, relay U18 coil negative pole is connected with vehicle braking lamp positive pole, is stepped on when stepping on brake During plate, vehicle braking lamp is lighted, identical with the relay U18 coil both end voltages that brake lamp is connected, and relay U18 disconnects, fixed Speed is cancelled.Diode D7 and electric capacity C19 are parallel between relay U18 both positive and negative polarities, is reduced when relay U18 is acted to system Interference.Relay U18 action is total to by 12V power supplys, the PA0 pins of MCU chip and outside brake signal BREAK_LIGHT With control, security of system is added.
The circuit diagram of this specific embodiment CAN communication unit is as shown in fig. 6, communication bus is total comprising two-way CAN communication altogether Line, is all the way high-speed CAN bus, i.e. HCAN, and another road is low speed CAN, i.e. LCAN.Chip U7 is high-speed CAN communication core The pin 6 and pin 14 for the standard OBD sockets that piece, its pin 7 and pin 6 are provided with automobile respectively are connected, chip U7 pin 1 It is connected with the HCAN-TX pins of MCU chip, chip U7 pin 4 is connected with the HCAN-RX pins of MCU chip.Low speed CAN cores The pin 1 for the standard OBD sockets that piece M7 pin 7 is provided with automobile is connected, chip M7 pin 5 and power subsystem offer 12V power supplys are connected, and are in series with load resistance R19 between chip M7 pin 6 and pin 7, the resistance to balanced communication network It is anti-.Chip M7 pin 1 is connected with MCU chip LCAN-TX pins, chip M7 pin 4 and MCU chip LCAN-RX connections.
Embodiment of above is only that preferred embodiment of the present utility model is described, not to the utility model Scope be defined, on the premise of the utility model design spirit is not departed from, this area ordinary skill technical staff to this Various modifications and improvement that the technical scheme of utility model is made, all should fall into the guarantor that claims of the present utility model are determined In the range of shield.

Claims (6)

1. a kind of multi-functional constant-speed cruising device for including battery main switch, it is characterised in that:Always opened including fuse, power supply Pass, master controller, display, the battery main switch, display are electrically connected with master controller, the battery main switch input End is electrically connected by fuse with the feeder ear of automotive electrical system, in addition to cruise switch, multimedia switch, and the cruise is opened Close, multimedia switch is fixed on vehicle steering, the cruise switch, multimedia switch pass through wire harness or plug and main control Device is electrically connected, and the master controller is provided with external wake signal input part, the external wake signal input part and auto electric System is electrically connected, and provides operating voltage during the external wake signal input part high level for each circuit inside master controller, institute Master controller does not work when stating external wake signal input part low level, and the master controller also passes through wire harness or plug and automobile Accelerator pedal sensor, Engine ECU, vehicle-mounted data communication bus electrical connection.
2. a kind of multi-functional constant-speed cruising device for including battery main switch according to claim 1, it is characterised in that:Institute State master controller including MCU units, power subsystem, CAN communication unit, DAC units, voltage buffer unit, signal switch unit, Display communication unit, divider filter unit, the MCU units are connected by CAN communication unit with vehicle-mounted data communication bus, The MCU units are connected by power subsystem with battery main switch, and the MCU units pass through display communication unit and display Connection, the MCU units are by the way that divider filter unit is switched with cruise switch, multimedia, accelerator pedal sensor is connected, described MCU units are connected with signal switch unit, the accelerator pedal sensor, voltage buffer unit and signal switch unit input Connection, the Engine ECU is connected with signal switch unit output end, and the signal switch unit is also connected with MCU units, institute State MCU units to be also connected with DAC units, the DAC units are connected with voltage buffer unit, the MCU units, display communication Unit, CAN communication unit, DAC units, voltage buffer unit, signal switch unit are connected with power subsystem output end, described The Enable Pin of power subsystem is connected with external wake signal input part, during the external wake signal input part high level, power supply Unit provides operating voltage for each road circuit inside master controller.
3. a kind of multi-functional constant-speed cruising device for including battery main switch according to claim 2, it is characterised in that:Institute State master controller and be additionally provided with outer protection signal input part, the outer protection signal input part is electrically connected with automotive electrical system Connect, the outer protection signal input part is also connected with signal switch unit, the outer protection signal input part reaches regulation Cancel cruise during value.
4. a kind of multi-functional constant-speed cruising device for including battery main switch according to claim 3, it is characterised in that:Institute The brake lamp positive pole for stating outer protection signal input part and automobile is connected.
5. a kind of multi-functional constant-speed cruising device for including battery main switch according to claim 1, it is characterised in that:Institute External wake signal input part is stated to electrically connect with automobile ACC circuits or automobile sensor 5V power supply circuits.
6. a kind of multi-functional constant-speed cruising device for including battery main switch according to claim 1, it is characterised in that:Institute Battery main switch input is stated to electrically connect with automobile storage battery by fuse.
CN201720309794.9U 2017-03-28 2017-03-28 A kind of multi-functional constant-speed cruising device for including battery main switch Active CN206589695U (en)

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Application Number Priority Date Filing Date Title
CN201720309794.9U CN206589695U (en) 2017-03-28 2017-03-28 A kind of multi-functional constant-speed cruising device for including battery main switch

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201720309794.9U CN206589695U (en) 2017-03-28 2017-03-28 A kind of multi-functional constant-speed cruising device for including battery main switch

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CN206589695U true CN206589695U (en) 2017-10-27

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