CN2797113Y

CN2797113Y - Mixed series type new mixed power bus

Info

Publication number: CN2797113Y
Application number: CNU2005200562734U
Authority: CN
Inventors: 刘长文
Original assignee: SHENZHEN JUHUA ENVIRONMENT PROTECTION AUTOMOBILE CO Ltd
Current assignee: Shenzhen Greenwheel Electric Vehicle Co Ltd
Priority date: 2005-03-31
Filing date: 2005-03-31
Publication date: 2006-07-19
Anticipated expiration: 2015-03-31

Abstract

The utility model discloses a mixed series type novel mixed power bus, which comprises a bus body and a chassis, wherein the chassis is provided with a mixed series type mixed power assembly. The mixed series type mixed power assembly comprises an engine, a generator, two driving motors, a gear box and an accumulator, and the entire power output of the engine can be completely transmitted to the generator used for generating. The electric power generated from the generator can drive a driving motor to convert the electric energy to mechanical energy under the control of a power converter, the mechanical energy can be connected with the gear box via a clutch, and then, the power can be transmitted to a rear axle so as to drive the bus via a transmission shaft. When the electric power generated from the generator is remained, the remained electric power can be transmitted to the accumulator for charging via a power converter, the electric power of the accumulator can singularly drive the driving motor when the engine stops generating, and the accumulator can also work with the generator simultaneously so as to provide large electric power. The utility model can be widely used for urban public transportation.

Description

A kind of mixing tandem novel hybrid bus

Technical field

The utility model relates to a kind of hybrid vehicle, relates in particular to a kind of mixing serial mixed power bus.

Background technology

Enter 21st century, the development of Chinese Urbanization construction is further accelerated, the expansion of city quantity and scale and Infrastructure perfect, and city bus is faced with unprecedented opportunity to develop.Along with the development of urban modernization, the cry of international, domestic protection environment, energy savings is constantly surging, and the urban environmental protection rules are constantly strict, and vehicle anti-emission carburetor, low noise, energy-saving and cost-reducing have become national generally pursuit.Under this background, hybrid vehicle can satisfy higher environmental demands as a kind of, and the new high-tech product that can save energy again in recent years, is obtained fast development by the auto trade common concern.

The power coupling manner of existing hybrid vehicle is broadly divided into three kinds: series connection, parallel connection and series-parallel connection, tandem is that mean engine refers to that the transmission of energy mode is series connected, the takeoff output of driving engine passes to electrical generator fully, electrical generator charges a battery or directly powers to motor, travelling of automobile fully by motor-driven, this mode is simple in structure, dependable performance, can effectively control the distribution and synthetic enforcement of each energy, but existing this mode must adopt more high-performance electrical motor and driving engine, cost is higher, needs simultaneously under the more high-performance situation power not enough sometimes when for example climbing.

The utility model content

Problem to be solved in the utility model provides and a kind ofly can alleviate bus exhaust emission, the simultaneously only less drive motor of power demand and the mixing tandem novel hybrid bus of driving engine.

The technical scheme that the utility model adopted is: mix tandem novel hybrid bus, comprise vehicle body and chassis, on the chassis, be equipped with and mix the serial mixed power assembly, mix the serial mixed power assembly and comprise driving engine, electrical generator, two drive motor, change speed gear box, storage battery, the whole takeoff outputs of driving engine pass to electrical generator fully and are used for generating, electrical generator institute electricity drives drive motor under the power converter control of Ride Control System, electric energy is converted into mechanical energy, connect change speed gear box through power-transfer clutch, through transmission shaft transmission of power is arrived back axle then, drive bus, when having, electrical generator institute electricity also can charge a battery when more than needed by power converter, the electric power of storage battery can be when the driving engine generation outage independent drive drive motor, also can quicken, when bus needs more high-power output during climbing etc. and electrical generator work simultaneously big electric power be provided.

Preferred version as such scheme, mix the serial mixed power assembly on the chassis by following scheme arrangement: driving engine places the chassis afterbody, output shaft is by the horizontal connecting generator rotating shaft of flexible clutch, before two drive motor place driving engine, two drive motor are by the coupler lontitudinal series, vertically connect change speed gear box by power-transfer clutch then, give back axle through the transmission shaft transferring power again, storage battery is arranged at the crossbeam both sides between the front and back wheel.

The beneficial effects of the utility model are: after the utility model adopts such scheme, when in general normal road conditions, the operation point of driving engine is long-term, equilibrium is in high-efficiency and economic district (optimum efficiency district) work, drive generator for electricity generation and supply with drive motor driving bus, driving engine is when this regional work, most effective, good economy performance, discharge, when bus travels in the key area in city, can kill engine by the battery traction drive motor, vehicle still can cruising, when under special road conditions such as when climbing, needing big power, can provide electrically driven vehicle to drive motor jointly by storage battery and engine power generation, in the utility model, adopt two drive motor to connect and drive bus, need a drive motor running job following of general normal circumstances like this, another idle running, two drive motor are worked simultaneously bigger power can be provided when special road conditions, so can avoid need be than heavy-duty motor expensive, simultaneously can guarantee that again drive motor is operated in efficient district, and the utility model is provided with change speed gear box and driving engine is carried out power tracking self adaptation adjusting control between two drive motor and transmission shaft, can realize slow speed of revolution, high pulling torque, make motor always work in efficient district, the utility model can be realized under the pure electronic operating mode, starting and low speed driving, stop, reach zero-emission, low noise, the utility model makes on the car load travelling comfort and is greatly improved, improved the fuel economy of automobile simultaneously, the car load synthesis energy saving is remarkable, when at densely populated business zone, zero-emission can be realized during key areas such as dwelling district, public transport use in the city can be widely used in.

Description of drawings

The utility model is described in further detail below in conjunction with the drawings and specific embodiments:

Fig. 1 is the contour structures scheme drawing of the utility model specific embodiment;

Fig. 2 is the power system principle figure of the utility model specific embodiment;

Fig. 3 is the chassis power system arrangement plan of the utility model specific embodiment.

The specific embodiment

As shown in Figure 1, mix tandem novel hybrid bus and comprise vehicle body 1 and chassis 2.

On chassis 2, be equipped with and mix the serial mixed power assembly, its power system principle as shown in Figure 2, the whole takeoff outputs of driving engine pass to electrical generator fully and are used for generating, electrical generator institute electricity drives drive motor under the power converter control of Ride Control System, electric energy is converted into mechanical energy, connect change speed gear box through power-transfer clutch, through transmission shaft transmission of power is arrived the rear-axle drive bus then, also can charge a battery when more than needed when described electrical generator institute electricity has by power converter, and when glancing impact or downhill running also recoverable energy charge a battery through power converter.

Figure 3 shows that the power system arrangement plan on the chassis of the utility model specific embodiment, wherein driving engine 3 places chassis 2 afterbodys, output shaft is by horizontal connecting generator 4 rotating shafts of flexible clutch, before two drive motor 6,7 place driving engine 3, two drive motor 6,7 are by coupler 13 lontitudinal series, vertically connect change speed gear box 9 by power-transfer clutch 8 then, through transmission shaft 10 transmission of power is driven bus to back axle 11 then, storage battery 12 is divided into two groups, and storage battery 12 is arranged at the crossbeam both sides between the front and back wheel.

Adopt the bus of present embodiment that three kinds of driving conditions are arranged:

1., pure engine working mode: when cruising, work independently by driving engine 3, driving electrical generator 4 generatings by driving engine 3 provides electric power to travel to drive motor driving bus, the operation point of driving engine is arranged on high-efficiency and economic district (optimum efficiency district) efficient height at this moment, discharging is low, most economical.

2., pure battery traction state mode of operation: travel in starting or when stopping and and storage battery is full of under the situation of electricity in the key area in city, can kill engine 3, providing the driven by power bus to travel separately by storage battery 12 advances, can realize zero-emission this moment, low noise, environmental protection.

3., driving engine, the common driving condition mode of operation of storage battery: when in particular cases needing big takeoff output in climbing, acceleration etc., can provide electric power jointly by driving engine 3 generatings and storage battery 12, two drive motor coupled driving bus advance, and this moment, power was the most powerful.

Claims

1, a kind of mixing tandem novel hybrid bus, comprise vehicle body and chassis, it is characterized in that: on described chassis, be equipped with and mix the serial mixed power assembly, described mixing serial mixed power assembly comprises driving engine, electrical generator, two drive motor, change speed gear box, storage battery, the whole takeoff outputs of described driving engine pass to electrical generator fully and are used for generating, described electrical generator institute electricity drives drive motor under the power converter control of Ride Control System, electric energy is converted into mechanical energy, connect change speed gear box through power-transfer clutch, through transmission shaft transmission of power is arrived back axle then, drive bus, also can charge a battery when more than needed by power converter when described electrical generator institute electricity has.

2, a kind of mixing tandem novel hybrid bus as claimed in claim 1 is characterized in that: mix the serial mixed power assembly on the described chassis and press following scheme arrangement:

Driving engine places the chassis afterbody, output shaft is by the horizontal connecting generator rotating shaft of flexible clutch, before two drive motor place driving engine, two drive motor are by the coupler lontitudinal series, vertically connect change speed gear box by power-transfer clutch then, give back axle through the transmission shaft transferring power again, storage battery is arranged at the crossbeam both sides between the front and back wheel.