This hydromechanical automatic transmission provides hydraulic regenerative braking for cars, trucks and buses with an approx. 40% improvement in mpg at a total vehicle cost less than the equivalent conventional vehicle. It provides 60 separate forward gear ratios (approaching continuously variable).
It consists of 8 fixed displacement hydraulic pump/motors, two speed-reduction planetary gear sets and a selectable one-way clutch. Four input pumps drive 4 output motors. Different gear ratios are obtained by selectively deactivating the pumps and motors.
Its manufacturing cost is comparable to a conventional 8 speed automatic transmission. Its efficiency, reliability, size and noise are comparable to a conventional automatic transmission.
All that is required to convert a vehicle to a hydraulic hybrid is ...
This type of hill start assist has been developed for a manually driven car and assists the driver to negotiate an inclined terrain by retaining the brakes even after the driver removes his foot from the brake pedal. The brake force gradually decreases depending on the rate of acceleration determined by the clutch position.
There are different sensors placed in the vehicle that give the information regarding the gear position (forward or reverse), gradient and wheel rotation direction.
Whenever a vehicle starts to rollback while moving up an incline, the driver’s first instinct is to apply the brakes (and clutch). In this case IDA engages, enabling the driver to remove the foot from the brake pedal and ...
Though all engines produces power, not all of them are fully utilised for the vehicle's performance. Nearly half of thus produced power is wasted. The torque produced above the mean torque line of the engine is considered to be excess energy which is wasted. This project idea is to reduce the excess torque produced in the engine thus increasing the mileage by over 40% of the actual mileage. The exact idea of the project is not conveyed here for patenting purposes. I am awaiting interested sponsors to explain my ...
Usually only 10-16% of the fuel energy is used to drive the vehicle to overcome the air resistance and air drag. Regenerative shock absorbers have the ability to continuously recover a vehicle's vibration energy that is otherwise dissipated due to road irregularities, vehicles acceleration and braking, further using this energy for better suspension control. Energy harvesting shock absorber can be used as source of energy regenerative system. It can be installed in the vehicle with less modification in the conventional suspension system.
Our concept consists of:
1) Shock absorber (which is used as a compressor)
2) Ranque-hilsch tube (vortex tube)
4) AC system of an automobile
In this shock absorber a piston cylinder arrangement is used due ...
Having human staff at night or in remote rural areas poses several practical difficulties, including health hazards, security problems and also it causes disputes in quantity and payment which lead to crowding at fuel stations. Regardless of the transportation method or type of fuel (electricity or gasoline), future vehicles will still regularly need fuel-filling. Automated fuel-filling will become important when smart vehicles travel on our roads. Moreover, it will necessitate an alert system, which can alert the fuel station location with distance, fuel availability at fuel station, get an appointment to fill the fuel, and reduce the time taken in manual process of filling.
To minimize these challenges and reduce the number of human attendants at fuel filling stations, an ...
To design a prototype of an accident avoiding electronically controlled safety system to provide safety at high speed from frontal collision. By designing electronic systems we are going to prevent the vehicles from accident by detecting the distance of any obstacle while we are following any other vehicle. The system help to reduce the speed automatically by actuating throttle and ...
The main aim of the project is to prevent accidents that is increasing day by day on the roads. The GPS with micro controller detects the accident black spots that has been preloaded in the memory matching with current latitudes and longitudes. When the spot has been identified the buzzer is activated and the speed governor comes into act to reduce the speed of the vehicle, thus helps in preventing the ...
The Jack Rabbit series of personal transportation vehicles are each built using various configurations of bicycle frames, wrapped in a fitted canvas skin; making it something akin to a bi-plane without wings.
The idea is to replace the standard big car with something you can fit 30 of across your standard city main street. Thus reducing traffic congestion, emissions output, and increasing the fun for everyone.
Lets face it... Dune buggy rally cars are fun.
The frames are arranged so as to use the stress of the riders weight to hold the machine together tighter at higher speeds.
With the pedals and low weight, it requires no license to operate; because it has four wheels, in Canada it is ...
The invention concerns a land vehicle positioning system (called LVPS) used in the land transporting mobile machines, such as cars, trucks, buses, motorcycles, trains, bicycles for navigation and determining the current geographic position of the vehicle.
There are different positioning systems based on the receipt of radio signals from different transmitters such as satellites (GPS, Galileo, COMPASS), beacons (LPE), cellular cells (CPS). The all listed above positioning systems have a common disadvantage, that they depend on the receipt of the radio signal, which in some conditions can not propagate (inside tunnels, between high buildings…etc.) and also can be jammed. Another disadvantage is that sometimes they need a long initial time to define the current geographic position.
The proposed LVPS does ...
We replace conventional spark plug by laser ignition. Since spark plug are less efficient, we have chosen a laser ignition system. Laser has many advantages over spark. It wil help to increase efficiency of the engine.
Why Laser Ignition....
Regulations on NOx emissions are pushing us toward leaner air/fuel ratios (higher ratio of air to fuel).
These leaner air/fuel ratios are harder to ignite and require higher ignition energies. Spark plugs can ignite leaner fuel mixtures, but only by increasing spark energy. Unfortunately, these high voltages erode spark plug electrodes so fast, the solution is not economical. By contrast, lasers, which ignite the air-fuel mixture with concentrated optical energy, have no electrodes and are not affected.
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