CN203850905U

CN203850905U - Auxiliary power supply system for vehicles

Info

Publication number: CN203850905U
Application number: CN201420048555.9U
Authority: CN
Inventors: 钟玉福
Original assignee: Individual
Current assignee: Individual
Priority date: 2014-01-25
Filing date: 2014-01-25
Publication date: 2014-09-24
Anticipated expiration: 2024-01-25

Abstract

An auxiliary power supply system for vehicles provided by the utility model comprises at least one battery pack composed of a single battery, at least two generators arranged on a vehicle axle, and a control device used for enabling the battery packs to work alternately and controlling the generators to supply power to one battery pack in a suspended state. By adopting the auxiliary power supply system for vehicles of the utility model, on one hand, the stability of power supply of gasoline-powered and electric vehicles can be enhanced, the load capacity of vehicle batteries can be reduced, and the service life of vehicle batteries can be prolonged; and on the other hand, the endurance mileage of electric vehicles can be extended, and power can be supplied by the auxiliary power supply system to enable an electric vehicle to continue running for a certain mileage after the battery of the electric vehicle runs out. Moreover, the generators are arranged on the vehicle axle and are driven by rotation of the vehicle axle to generate power, which does not increase the load of vehicles or affect the arrangement of an engine mounting box of a vehicle.

Description

Automobile auxiliary power supply system

Technical field

The utility model relates to a kind of electricity generation system, relates in particular to a kind of automobile auxiliary power supply system.

Background technology

Development along with auto industry, user is also more and more higher to the requirement of automobile, such as vehicle safety, ride comfort and experience property, at present for fuel-engined vehicle, its fail safe and ride comfort are also become better and better, yet be directed to experience property, such as the recreation experience in automobile, Source Music, in-car TV etc., these recreation experiences are also more and more higher for the power supply stability requirement of automobile, the electricity consumption of fuel-engined vehicle at present is mainly powered by Vehicular accumulator cell, the electric energy of Vehicular accumulator cell is provided by the generator generating of engine loading, due to increasing of the amusement function of fuel-engined vehicle, make the requirement of automobile also more and more higher, and it is instrument that load supplying system makes Vehicular accumulator cell, car light power supply, also need for amusement equipment power supply, the stability of power supply is reduced greatly, and for electric automobile, the stability of power supply is serious problem especially, to power for Vehicle Driving Cycle on the one hand, to be also the instrumentation on vehicle, car light power supply, it to be also the amusement equipment power supply of vehicle, thereby greatly reduce the stability of electromobile battery, and reduced the course continuation mileage of electric motor car.

Therefore, a kind of auxiliary power supply system for vehicle need to be proposed, can strengthen on the one hand the electrical stability that supplies of fuel-engined vehicle and electric automobile, alleviate the load of Vehicular accumulator cell, in the useful life that extends Vehicular accumulator cell, on the other hand, can effectively extend the course continuation mileage of electric automobile, and can after the exhaustion of the accumulators of electric automobile, by auxiliary system, provide electric energy to power, make electric automobile can continue certain mileage that travels.

Utility model content

In view of this, the purpose of this utility model is to provide a kind of automobile auxiliary power supply system, can strengthen on the one hand the electrical stability that supplies of fuel-engined vehicle and electric automobile, alleviate the load of Vehicular accumulator cell, in the useful life that extends Vehicular accumulator cell, on the other hand, can effectively extend the course continuation mileage of electric automobile, and can after the exhaustion of the accumulators of electric automobile, by auxiliary system, provide electric energy to power, make electric automobile can continue certain mileage that travels.

A kind of automobile auxiliary power supply system that the utility model provides, comprises at least the batteries that consists of single storage battery, is arranged at least two generators of vehicle wheel shaft and makes each batteries alternation and control generator for the control device of one of them batteries power supply in halted state.

Further, control device comprises voltage collection circuit for gathering single battery discharging voltage, the central processing circuit being electrically connected to described voltage collection circuit output, the timing circuit being connected with central processing circuit, for controlling the first relay, the second relay and the 3rd relay of powering and changing between batteries, described the first relay, the second relay and the 3rd relay are all electrically connected to central processing circuit by a relay drive circuit.

Further, described control device also comprises amplifying circuit and A/D change-over circuit, the input of described amplifying circuit is connected with voltage collection circuit output, the output of described amplifying circuit is connected with the input of A/D change-over circuit, and the output of described A/D change-over circuit is connected with central processing circuit.

Further, described batteries comprises the first batteries and the second batteries, and described the first batteries and the second batteries form by the single storage battery of two 12V, connects and realize break-make between single storage battery by described the second relay.

Further, described two generators are connected with single storage battery in the second batteries with the first batteries respectively and by the break-make of described the first Control connecting path.

Further, between described the first batteries and the second batteries, by the 3rd relay, connect and by the break-make of the 3rd Control connecting path, described the 3rd relay is open type relay.

Further, described central processing circuit is single-chip microcomputer.

The beneficial effects of the utility model: automobile auxiliary power supply system of the present utility model, can strengthen on the one hand the electrical stability that supplies of fuel-engined vehicle and electric automobile, alleviate the load of Vehicular accumulator cell, extend the useful life of Vehicular accumulator cell, on the other hand, can effectively extend the course continuation mileage of electric automobile, and can after the exhaustion of the accumulators of electric automobile, by auxiliary system, provide electric energy to power, make electric automobile can continue certain mileage that travels; And generator is arranged at the wheel shaft place of vehicle, by the rotation drive of wheel shaft, is generated electricity, and can increase the load of vehicle, and can not affect the layout of the engine install bin of vehicle.

Accompanying drawing explanation

Below in conjunction with drawings and Examples, the utility model is further described:

Fig. 1 is the structural representation between batteries of the present utility model and generator.

Fig. 2 is control device structural representation of the present utility model.

Embodiment

Fig. 1 is the structural representation between batteries of the present utility model and generator, Fig. 2 is control device structural representation of the present utility model, as shown in the figure, a kind of automobile auxiliary power supply system that the utility model provides, comprise at least batteries being formed by single storage battery, be arranged at least two generators of vehicle wheel shaft and make each batteries alternation and control generator for the control device of one of them batteries power supply in halted state, automobile auxiliary power supply system of the present utility model, can strengthen on the one hand the electrical stability that supplies of fuel-engined vehicle and electric automobile, alleviate the load of Vehicular accumulator cell, extend the useful life of Vehicular accumulator cell, on the other hand, can effectively extend the course continuation mileage of electric automobile, and can after the exhaustion of the accumulators of electric automobile, by auxiliary system, provide electric energy to power, make electric automobile can continue certain mileage that travels, and generator is arranged at the wheel shaft place of vehicle, rotation by wheel shaft drives generating, and only utilize vehicle in descending process and the inertia of vehicle drives generator generating, can't increase the load of vehicle, and can not affect the layout of the engine install bin of vehicle.

In the present embodiment, control device comprises for gathering the voltage collection circuit of single battery discharging voltage, the central processing circuit being electrically connected to described voltage collection circuit output, the timing circuit being connected with central processing circuit, for controlling the first relay of power supply conversion between batteries, the second relay and the 3rd relay, described the first relay, the second relay and the 3rd relay are all electrically connected to central processing circuit by a relay drive circuit, described control device also comprises amplifying circuit and A/D change-over circuit, the input of described amplifying circuit is connected with voltage collection circuit output, the output of described amplifying circuit is connected with the input of A/D change-over circuit, the output of described A/D change-over circuit is connected with central processing circuit, described voltage collection circuit equates with the number of single storage battery, described central processing circuit is single-chip microcomputer, described batteries comprises the first batteries and the second batteries, described the first batteries and the second batteries form by the single storage battery of two 12V, between single storage battery, by described the second relay, connect and realize break-make, described two generators are connected with single storage battery in the second batteries with the first batteries respectively and by the break-make of described the first Control connecting path, by this structure, when the first batteries power supply, by voltage collection circuit, gathered the voltage of the single storage battery of the first batteries, although the change in voltage of storage battery is little, but the carrying out along with electric discharge, the voltage of storage battery still can diminish gradually, voltage collection circuit (or voltage sensor) adopts high-accuracy voltage Acquisition Circuit (or high precision electro pressure sensor), and when the beginning of the first batteries power supply, timing circuit just starts timing, the voltage signal that described central processing circuit is exported by voltage collection circuit and according to the discharge electricity amount of calculating accumulator discharge time (its algorithm can adopt existing algorithm), by the electric weight of setting, deduct discharge electricity amount again and obtain dump energy, when the dump energy of the single storage battery in the first group storage battery group is less than setting threshold, by single-chip microcomputer output control command, make the first group storage battery disconnecting external power supply (although the unbalanced meeting of the electric discharge of storage battery causes dump energy unbalanced, when as long as one of them storage battery dump energy reaches threshold value, single-chip microcomputer also can output command disconnects the externally fed path of this group storage battery), and by the conversion of the first relay, the first relay and the second batteries are disconnected, by the second batteries, powered, and the first relay makes generator be communicated with the path between the first batteries, and give the charge in batteries of the first batteries, and single-chip microcomputer output control command, the second relay between the first batteries is disconnected, assurance generator can be powered separately, according to above-mentioned principle, vehicle the first batteries and the second storage battery alternation in the process of moving and generator are alternately the first batteries and the power supply of the second batteries, thereby alleviate the load of the storage battery of fuel-engined vehicle and electric automobile, extender useful life, after the electric weight of two group storage battery groups is all full of, single-chip microcomputer output order, controls the first relay and disconnects, and makes generator unloaded, prevents that overshoot from appearring in storage battery, and described generator adopts DC generator.

In the present embodiment, between described the first batteries and the second batteries, by the 3rd relay, connect and by the break-make of the 3rd Control connecting path, described the 3rd relay is open type relay, described the 3rd relay is generally inapplicable in fuel-engined vehicle, be mainly used in electric automobile, in electric automobile, described central processing circuit is also connected with the ECU of electric automobile, when the power accumulator accumulator electric-quantity of electric automobile is used up soon, ECU(by electric motor car is commonly called as car running computer) to single-chip microcomputer output control command, single-chip microcomputer disconnects the first relay, and make the second relay and the 3rd relay adhesive, thereby make the first batteries and the second batteries be connected into 48V, and power to electric automobile, make electric automobile certain mileage that continues to travel, and can effectively prevent the electrokinetic cell overdischarge of electric automobile and damage, when the utility model is applied to electric automobile during traveling to power, needed auxiliary equipment (such as booster circuit or reduction voltage circuit etc.) does not belong to the desired protection scheme of the utility model, and not in this to go forth.

In Fig. 1, the storage battery of the first batteries represents with X1 and X2, the storage battery of the second batteries represents with B1 and B2, certainly, the number of the group number of storage battery and the storage battery of every group can change according to the actual requirements, only with every group of two storage batterys, be illustrated in the present embodiment, and in Fig. 1, only mean the annexation in principle, it is not actual both positive and negative polarity junction, such as the 3rd relay is by storage battery X1 and storage battery B2C series connection, in Fig. 1, only represent series relationship.

Finally explanation is, above embodiment is only unrestricted in order to the technical solution of the utility model to be described, although the utility model is had been described in detail with reference to preferred embodiment, those of ordinary skill in the art is to be understood that, can modify or be equal to replacement the technical solution of the utility model, and not departing from aim and the scope of technical solutions of the utility model, it all should be encompassed in the middle of claim scope of the present utility model.

Claims

1. an automobile auxiliary power supply system, is characterized in that: comprise at least batteries that consists of single storage battery, be arranged at least two generators of vehicle wheel shaft and make each batteries alternation and control generator for the control device of one of them batteries power supply in halted state; Control device comprises voltage collection circuit for gathering single battery discharging voltage, the central processing circuit being electrically connected to described voltage collection circuit output, the timing circuit being connected with central processing circuit, for controlling the first relay, the second relay and the 3rd relay of powering and changing between batteries, described the first relay, the second relay and the 3rd relay are all electrically connected to central processing circuit by a relay drive circuit; Described batteries comprises the first batteries and the second batteries, and described the first batteries and the second batteries form by the single storage battery of two 12V, connects and realize break-make between single storage battery by described the second relay; Between described the first batteries and the second batteries, by the 3rd relay, connect and by the break-make of the 3rd Control connecting path, described the 3rd relay is open type relay.

2. automobile auxiliary power supply system according to claim 1, it is characterized in that: described control device also comprises amplifying circuit and A/D change-over circuit, the input of described amplifying circuit is connected with voltage collection circuit output, the output of described amplifying circuit is connected with the input of A/D change-over circuit, and the output of described A/D change-over circuit is connected with central processing circuit.

3. automobile auxiliary power supply system according to claim 2, is characterized in that: described two generators are connected with single storage battery in the second batteries with the first batteries respectively and by the break-make of described the first Control connecting path.

4. automobile auxiliary power supply system according to claim 3, is characterized in that: described central processing circuit is single-chip microcomputer.