list two things that car manufacturers do to improve a car's efficiency
Decrease friction and have less wasted heat
Decrease the weight of the car, and Decrease friction and have less wasted heat
To improve a car's efficiency, car manufacturers typically focus on two main areas: aerodynamics and engine technology. Here's an explanation of what they do in each area:
1. Aerodynamics: Car manufacturers invest a lot of effort in shaping a vehicle's body to minimize air resistance, also known as drag. This involves several techniques:
a. Streamlined design: Manufacturers strive to create sleek and aerodynamic body shapes that reduce drag. They often use wind tunnels and computer simulations to optimize the design for minimum air resistance.
b. Active aerodynamics: Some vehicles employ active systems such as adjustable grille shutters, automatically deploying spoilers, or air curtains to strategically manage airflow and reduce the drag coefficient.
2. Engine Technology: Car manufacturers continuously improve the design and technology of engines to make them more efficient. Here are a few key approaches they take:
a. Downsizing and Turbocharging: By reducing the size and weight of engines while using turbocharging, car manufacturers can improve fuel efficiency without sacrificing power. Smaller engines consume less fuel during normal driving conditions but still provide sufficient power when needed due to the turbocharger.
b. Direct Injection: This technology injects fuel directly into the combustion chamber, resulting in a more efficient combustion process. Direct injection allows for better control of fuel delivery, optimizing fuel-air mixtures and reducing fuel wastage.
c. Hybrid and Electric Powertrains: Car manufacturers are increasingly exploring hybrid and fully electric powertrain options. Hybrids combine an internal combustion engine with an electric motor, allowing for improved fuel efficiency. Electric vehicles (EVs) entirely rely on electric motors, eliminating fuel consumption altogether.
These are just a couple of examples of how car manufacturers strive to enhance a vehicle's efficiency. Advanced materials, weight reduction, regenerative braking, and other technologies also play a significant role in achieving better fuel economy and environmental performance.
If you define efficiency as increasing gas mileage, then,
1. Decrease the weight of the car.
2. You do the other half.