Drives tomorrow with two engines
There were times when people were amazed at the introduction of amphibious vehicles. But, it would be a pity if one’s memory of a car stops there. The present ecosystem of vehicles is improving at a pace that is faster than the speed of our memory processing. Now, hybrid vehicles (HEV) and plug-in hybrid vehicles (PHEV), which have reduced fossil fuel consumption through the simultaneous use of the engine and motor, are widely welcomed.
In addition, the extent of innovation in the automobile industry now includes the zero-emission realizing electric vehicle (EV) and fuel cell electric vehicle (FCEV), which is the so called ultimate eco automobile. Now, cars are no longer the cause of environmental pollution. Hyundai Automobile is aiming at a pollution-free society with Bluedrive technology. The company’s hybrid model is its starting point, as well as the most popular environmentally friendly car in its line-up.
Hybrid, the birth of the environmentally friendly vehicle
“Hybrid” is defined as a compound, and in regard to vehicles, it refers to the type of cars that use two kinds of driving momentums at the same time. Hybrid Electric Vehicle (HEV), often called the eco-friendly car, is a next generation that is equipped with the existing internal combustion engine and electric car’s battery motor, promoting fuel efficiency and reducing harmful gas emissions considerably. As its moniker implies, hybrid vehicles can reduce the use of fossil fuel like gasoline, diesel and LPG to the extent that it uses up electricity. For that reason, it serves the twin purposes of reducing pollution and slowing down the depletion of natural resources.
The two hearts that realize high efficiency through perfect harmony
A hybrid vehicle uses an electric motor, not an engine, during ignition, meaning that it obtains the basic energy needed for start-up without support from fossil fuels. The principle behind it is quite simple. When the driver demands acceleration, the vehicle properly aligns the correct portion of engine and motor, leading to excellent fuel economy, while it enhances power output whenever high power is necessary, securing stable driving performance. The regenerative brake system, which converts the kinetic energy into electric energy for battery charge during deceleration, plays an important role in achieving high energy efficiency for Hyundai Automobile’s hybrid technology. In addition, the highly efficient permanent magnet electric motor makes it possible to drive at a top speed of 120km/h without the help of an engine.
Giving up on performance and safety for ecofriendly movement is something found in the past only
We have to admit that the hybrid vehicles up until now had to sacrifice performance properties, such as comfortable driving and acceleration performance, since environmentally friendly aspects – the reduction in gas emission in accordance with the decrease in fuel – were given priority. However, Hyundai Automobile is aiming at adding new value that surpasses the “eco-friendly aspect” in a hybrid vehicle with the introduction of the Sonata Hybrid early this year, which integrates all new technologies related to environmentally friendly vehicles. The new values are “safety” and “high performance”.
The showcase demonstration, “Trust Hybrid Tech & Safety”, which was held in March 2015 at a battery test site in Chungju and a safety test site at Namyang R&D center, was truly an opportunity to demonstrate the safety and performance of the hybrid car. During this demonstration session, which was attended by automobile bloggers and reporters, the safety of the Sonata Hybrid was confirmed through a rear end collision test, dispelling any worries that during a rear-end collision accident the vehicle would explode or burn due to the battery located at the bottom of the trunk compartment. In addition, in the mock-up tests for submersion and collision, the battery was tested and found to be completely safe and without the risk of any sort of explosion.
The secret of a fast-running hybrid vehicle, the performance of which surpasses “eco-friendly” requirements
Parallel-hard type hybrid system
The secret behind the hybrid that “drives fast”, which has fully demonstrated by Sonata Hybrid, is the “parallel-hard type hybrid system”, which has been exclusively developed by Hyundai Automobile. Unlike the previously used complex type system, the parallel type system realizes engine performance in a straight series system, displaying an absolute advantage in fuel economy during acceleration. Especially, by featuring an engine clutch that controls engine and motor power and the hybrid-exclusive 6 speed automatic transmission, the system enables maximization of efficiency with its simple structure and low motor capacity, completing the driving performance.
Hybrid-exclusive DI engine
Another secret behind the “well performing hybrid” is the hybrid-exclusive DI engine. Featuring the Nu 2.0 Hybrid exclusive engine, which promotes engine efficiency through a direct injection (DI) engine, Sonata Hybrid has obtained 4% higher output of 156 horsepower and 5.5% higher power of 19.3kgm torque. In addition to this, perfecting the strong driving capacity with 8.6% higher output of electric power and 20.9kgm of highest torque, the vehicle has resolved problems regarding initial acceleration, which was thought to be the biggest shortcoming in a hybrid car.
Six speed automatic transmission for the hybrid
The six speed automatic transmission for Hyundai Motor’s hybrid and plugged-in hybrid vehicles displays a different structure from the transmission in general cars. While previous transmissions delivered the engine-generated power in proportion to the required speed for driving, the hybrid and plugged-in hybrid vehicle exclusive transmission has the transmission and motor combined together in a new housing unit in order to minimize machine movement, as well as output power. In addition, the Electric Oil Pump (EOP) adjusts the oil volume needed for the motor rotation frequency, controlling the optimal oil flow rate within the transmission. The one-bodied structure of the six transmission motor is as light as 130 kg, contributing greatly to enhanced fuel consumption.
A perfect convergence between an electric car and a hybrid car
The vehicle becoming part of nature
Fuel Cell Electric Vehicle
Envisions the future of eco-friendly mobility