Energy Management, Drivability and Powertrain Integration

Master your energy management and improve drivability and performance
Integrate green engineering into the current development process

Under pressure from legislation as well as customer buying behavior, automotive OEMs and suppliers are currently devising solutions to improve CO2 and emission levels as well as fuel economy. However, consumers want it all: improved fuel economy, lower CO2 emission levels and cars that are fun to drive as well as safe and ever cheaper. Translated to vehicle engineering targets this means that seemingly conflicting engineering challenges need to be reconciled to manufacture the cars that will determine the world’s future mobility.

LMS is a true competence center for supporting design decisions on concepts and architectures, for detailed design analysis of full vehicle to subcomponent technologies and for optimal usage of model based technology during different phases of controls development. 

Vehicle Energy Management is a proven solution that remedies the problem of integrating green engineering into the current development process while continuing to improve the car’s drivability and performance. LMS’ Vehicle Energy Management is designed for integration into the existing vehicle development process combining subsystem, vehicle simulation technology and controls engineering into one synthesis platform. LMS brings together mechanical, thermal, electrical and controls system engineering tools into a unique open software environment.

The LMS vehicle energy management methodology monitors and analyzes energy distribution in any type of system, ranging from full vehicle – ICE, HEV/EV – to  subsystem and detailed component design, such as engine, transmission, battery, HVAC and cooling systems, electrical power units, etc.:

Where functional performances meet subsystems and controls:

1. Optimize energy flows to maintain thermal comfort while improving fuel consumption and emission levels:
LMS provides dedicated simulation tools and technologies to size and analyze the impact of energy-generating and -consuming subsystems. This solution gives design engineers the possibility to analyze in detail the losses in subsystems as engine, transmission and passenger cabin, to optimize performance of engine cooling and lubrication, HVAC and auxiliary heating and energy recovery devices (Rankine systems, brake energy recovery, etc.). With this solution steady-state as well as transient multi-domain conditions can be tested. Energy management control strategies can be optimized to balance thermal comfort and fuel economy.

2. Trade-off balancing between drivability and fuel economy:
LMS facilitates simulation of new transmission design as well as control strategy concepts. This solution provides a comprehensive, flexible development framework ranging from component design to vehicle system integration and control validation for any kind of transmission architecture including hybrid, dual-clutch, robotized, automatic and CVT. This technology offers a scalable solution to address drivability, judder and higher frequency driveline integration and comfort issues.

3. Set-up an advanced strategy for optimum range while guaranteeing low energy consumption:
LMS offers battery and fuel cell plant modeling technology together with practical experience in battery management control system development during requirement, implementation and validation phases. Next to the battery solution, the LMS automotive electrics solution supports the design and optimization of automotive power networks and related control strategies. This solution helps size the power network, checks the wiring size, validates the control laws for optimization of the electric power management, and estimates the transient behavior of each component and its related impact on the entire network.

4. Enhance engine performance for maximum fuel economy
Impact analyses on fuel economy and emission of innovative design technology choices, such as advanced valve-train systems, multiple injection, air management, multi-stage turbochargers, as well as advanced control strategies… can be modeled and analyzed in early stages of development. LMS provides next to accurate engine system simulation models, the related process knowledge in controls requirements, implementation and validation phases.

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