Renault DeZir

Renault Twizy

History

In 1900, Ferdinand Porsche developed the Mixte, a 4WD series-hybrid version of "System Lohner-Porsche" electric carriage previously appeared in 1900 Paris World Fair. It was presented in the Paris Auto Show in 1901. The Mixte broke several Austrian speed records, and also won the Exelberg Rally in 1901 with Porsche himself driving. The Mixte used a gasoline engine powering a generator, which in turn powered electric hub motors, with a small battery pack for reliability. It had a top speed of 50 km/h and a power of 5.22 kW during 20 minutes.
In 1905, Henri Pieper of Germany/Belgium introduced a hybrid vehicle with an electric motor/generator, batteries, and a small gasoline engine. It used the electric motor to charge its batteries at cruise speed and used both motors to accelerate or climb a hill.
In 1931 Erich Gaichen invented and drove from Altenburg to Berlin a 1/2 horsepower electric car containing features later incorporated into hybrid cars. Its maximum speed was 25 miles per hour (40 km/h). The car battery was re-charged by the motor when the car went downhill. Additional power to charge the battery was provided by a cylinder of compressed air which was re-charged by small air pumps activated by vibrations of the chassis and the brakes and by igniting oxyhydrogen gas.


The Mixte

Disadvantages

• Toxicity of batteries that require electric motors.
• Important use of scarce materials
• Greater weight than a conventional car (we must add the electric motor and particularly, battery), and therefore an increase in the energy required to displace it.
• More complexity, which makes revisions and repairs.

Advantages

• More efficient fuel consumption
• Reduction of emissions
• Less noise than a heat engine.
• More torque and more elasticity than a conventional engine.
• More immediate response.
• Deceleration energy recovery (in case of using regenerative braking).
• Greater smoothness and ease of use.
• Better performance over short and urban.

Elements

• High-capacity batteries to store electrical energy to move the vehicle.
• Fuel cell, for storing electrical energy obtained as fuel and transformed into the time of use.
• Photovoltaic panels and helps recharge the batteries.
• Battery inertial recovers the energy released during braking.
• Supercapacitors to perform the same function as the flywheels using only electrical technology.
• Generator sets, if battery very low levels, consume fossil fuel piston engines to generate electricity.
• Groups turbogen for, if very low battery, fossil fuel consumption in rotating turbine engines to generate electricity.

Application in Colombia

This year Sofasa-Renault will put on ride the first ecological car in the main cities of Colombia, which the first 250 cars will be sold at a price of US$15.000.
This cars will be equipped with rechargeable batteries with a range of 160 kilometers of travel and can travel at a maximum speed of 135 kilometers per hour. 
For the first four vehicles charging stations will be installed inside the headquarters of EPM, and Sofasa Codensa and designed some external points in the initial tests. 
For the first case we have a standard charger, where the car can be connected in a simple way.