The question is the problem. It presumes that performance must go down to meet emissions. That wraps a box around the problem that limits thinking. Is it possible to increase performance without increasing emissions? We can argue about that, but this type of thinking limits the possibility. In fact, we HAVE improved performance AND emissions. Compare a gasoline engine from the 70’s and today’s engines. We have probably doubled the performance while cutting the emissions by 4(?) orders of magnitude. Or compare a 2002 Heavy Duty engine vs a 2024 Heavy Duty engine. Better performance, better emissions, better fuel economy, better durability and reliability. Naysaying is easy, and often very counterproductive.

Com o aumento da performance, há um aumento significativo de 2 fatores que tendem a aumentar as emissões pelos gases de escapamento. Se há alta velocidade, o arrasto aerodinâmico cresce exponencialmente. Outro fator é também o funcionamento do motor em rotações de menor rendimento e torque. Ambos os casos, naturalmente, exigem aumento do consumo energético e emissões. Para minimizar as condições citadas, deve-se atuar em materiais mais leves, design com menor CX, pneus com menor resistência a rolagem e powertrains mais eficientes.

More power means more fuel consumption. Generally by an IC Engine, higher power is produced at higher revolution per minute (rpm). At higher rpms, fuel gets very lesser time to combust completely. Uncombustion of fuel results in the adverse effect of pollution in the environment. But Performance of an engine can also be increased by down sizing its capacity and using technologies to optimize the power and torque proportion, keeping the emission values within limits of the regulatory standards and also trying to match the application of use.

Horsepower and torque determine acceleration and top speed. More power often means less fuel efficiency and higher emissions. Also fuel efficiency and regulatory standards naturally aim to reduce emissions.

When discussing performance versus emissions with clients, clarity and transparency are essential. Performance and emissions often operate in tension: high-power engines traditionally boost performance but increase emissions, while eco-friendly designs may sometimes compromise peak power. To make this trade-off clear, emphasize advancements in technology that minimize these gaps, like turbocharged engines, hybrid systems, and optimized aerodynamics, which balance power with efficiency. Use real-world scenarios to illustrate how small sacrifices in speed or acceleration can lead to substantial environmental and cost benefits over time. Educating clients helps them align with both their performance goals and sustainability values.

When explaining performance vs. emissions to clients, clarity is key to illustrating the trade-offs: • Define Performance Metrics: Break down concepts like horsepower, torque, and acceleration in straightforward terms to help clients understand vehicle performance. • Explain Emissions Standards: Discuss CO2 emissions, fuel economy, and relevant regulations that cars must adhere to, emphasizing their impact on vehicle design. • Highlight the Trade-offs: Use real-world examples to show how enhancing performance can increase emissions, and conversely, how prioritizing emissions can limit power. How do you approach these discussions with clients? Share your strategies. #AutomotiveEngineering #PerformanceVsEmissions #ClientEducation

The important third factor, price, is missing. But first, torque is a component of horsepower, but to connect it with acceleration, we need to talk about gearboxes. High RPM can be reduced to high torque, and therefore high acceleration, so horsepower is the leading metric for describing the potential acceleration. But gears reduce efficiency, so low RPM and high torque is most of the time more efficient, while high RPM is usually lighter. And now we can think about Performance vs. Emissions vs. Price. Emissions are just the result of Performance and Efficiency, Efficiency is directly connected to Price. It is possible to achieve a high performance engine, with relatively low emissions, but technological advancements cost money. Cheers

Balancing performance and emissions involves trade-offs: higher power usually means more fuel use and emissions, while reducing emissions often limits performance. For example, powerful sports cars emit more pollutants due to larger, fuel-hungry engines, whereas hybrid or electric vehicles prioritize efficiency and lower emissions but may sacrifice top speed or acceleration. Understanding this balance helps clients choose solutions aligning with both their performance needs and regulatory standards.

1. Use Clear and Simple Language and mood of communication 2. Focus on the Client's Needs 3. Use Visual Aids, Charts and graph Visual representations can make complex data easier. 4. Provide Concrete Examples: * Case studies: Share real-world examples of how companies or individuals have successfully * Product comparisons: If applicable, compare specific products or technologies, highlighting their performance and emissions characteristics. 5. Address Concerns and Questions: * Anticipate questions: Think about the questions your clients might have and prepare answers in advance. * Be transparent: Clearly state the limitations and trade-offs involved in different options.

Priority should always align to emission while achieving the performance of the engines. On a rough calculations Out of 100% of Engine energy balance, 30% Useful power can be utilized for actual running the vehicle, coz 30% waste due to pumping loss, 30% energy utilized for cooling/aftertreatment systems & 10% energy is unaccounted. Therefore Engine Design Team has only control over Cooling/after-treatment System to utilized it as much as minimum so that actual useful energy will be gained. Smart Technological approach such as Active Thermal Management would helps to reduce energy utilize/carried for Cooling systems. Conventional wax based Thermostat can be replaced with logic based cooling control valves.