Renault Automaker uses LMS Imagine.Lab Amesim to optimize design of electrical systems early in the development cycle

Electric power consumption in automobiles has risen significantly over the last decades. In the near future, even greater electrical power requirements are expected. To limit the associated increase in fuel consumption and exhaust emissions, new strategies for the generation, storage, retrieval, distribution, and consumption of electric power are needed. The challenge that arises now is how to control the power net to obtain maximum energy efficiency within the vehicle. One of the main causes of increased electric consumption is the replacement of mechanical and hydraulic components with electrical devices. The increase in electrical consumption affects the testing and simulation process. In the 1990s, statistical modeling was carried out to monitor various driving cycles in different weather conditions. These experiments could provide the mean value and peak request for electric power. During the development process, the designer could select the appropriate battery and alternator to meet the electric requirements of the vehicle. To be on the safe side, several physical tests had to be done in order to confirm the choice. The trend to shorter development cycles and, therefore, performing fewer tests, really began early in the 21st century. At that time, Renault decided to replace actual testing by virtual validation for selected driving cycles. To minimize electric consumption, emphasis was placed on optimizing the battery and alternator selection by taking into account additional dynamics and using more precise models.

Renault is a French multinational vehicle manufacturer that was established in 1899. The company produces a range of cars and vans and employs over 127,000 people. Renault has a significant global presence, operating in 128 countries. Known for its innovation and commitment to quality, Renault has been a key player in the automotive industry for over a century. The company has continually adapted to changing market demands and technological advancements, making it a leader in the development of energy-efficient and environmentally friendly vehicles. Renault's commitment to sustainability and innovation is evident in its efforts to optimize electrical systems in its vehicles, aiming to reduce power consumption and improve energy management.