Lars Heber

Daimler Truck AG · AE Mechatronic Systems Integration & E/E Architecture

Moderne Nutzfahrzeuge sollen höchsten Ansprüchen hinsichtlich Ökologie und Ökonomie genügen. Thermoelektrische Generatorsysteme stellen einen innovativen Lösungsansatz dar, um den Anforderungen des Klimaschutzes gerecht zu werden und gleichzeitig die Fahrzeugeffizienz zu steigern sowie Emissionen zu reduzieren. In dieser Forschungsarbeit wird erstm...

Thermoelectric generators offer a solution with low complexity and a competitive cost-benefit ratio compared to other efficiency technologies. In this research study, a holistic modelling approach that includes all vehicle interactions is used. The objectives of the study are conventional heavy-duty diesel vehicles and natural gas vehicles. In the...

Content Plenary speeches Leading sustainable transportation: Bringing our vision to the road 1 Total vehicle concepts AVL Fuel Cell Demo Truck – System Integration and electrical Development 13 Packaging concepts for fuel cell commercial vehicles – From practical to application-oriented designs 25 The next level of an improved Truck-Trailer connect...

Modern heavy-duty vehicles have to fulfill the highest demands in terms of economy and ecology, i. e. reduction of total cost of ownership, fuel consumption and pollutant emissions. A holistic technically and economically optimized waste heat recovery system in the form of a thermoelectric generator, which takes into account mechanical, electrical,...

Emissions from heavy-duty vehicles need to be reduced to decrease their impact on the climate and to meet future regulatory requirements. The use of a cost-optimized thermoelectric generator based on total cost of ownership is proposed for this vehicle class with natural gas engines. A holistic model environment is presented that includes all vehic...

Fuel consumption and emissions from heavy-duty vehicles account for a large proportion of emissions of road transport and without further innovation, significant reductions are unlikely. Part of this problem is that about 2/3 of the chemical energy of the fuel is lost in the form of waste heat via the engine coolant and exhaust system. Thermoelectr...

This research study demonstrates the engineering and measurement of a TEG prototype for heavyduty vehicles applications. The thermoelectric module area corresponds to approximately 1370 cm2 and consists of 144 segmented thermoelectric high-power modules based on bismuth telluride and skutterudite. The experimental setup enables the validation of th...

In diesem Projekt wurde die Effizienzsteigerung von modernen schweren Nutzfahrzeugen durch den Einsatz eines neuartigen Abwärmenutzungssystems demonstriert. Dabei wurde erstmalig ein nutzfahrzeugspezifisches System basierend auf der Thermoelektrik mit Hilfe eines gesamtheitlichen Entwicklungsansatzes entwickelt und das Potential dieser Technologie...

Contents Ways to achieve Zero Emission ZF E-Mobility products and software for commercial vehicles ..... 1 Thermoelectric generators for heavy-duty vehicles as an economical waste heat recovery system ..... 17 Hybridization of heavy duty trucks – Market analysis and technology for high voltage as well as low voltage solutions ..... 33 Development p...

See for more Information: https://elib.dlr.de/142027/ In this project "HD-TEG", the improvement in efficiency of modern heavy-duty commercial vehicles was demonstrated through the use of a new type of waste heat recovery system. For the first time, a heavy-duty vehicle-specific system based on thermoelectrics was developed using a holistic deve...

Global CO2 emissions of heavy-duty vehicles are rising steadily and will continue to increase in the future without the implementation of measures such as technologies to reduce fuel consumption and emissions. In recent years, vehicles with natural gas-powered engines have increasingly been used as an economical and environmentally friendly alterna...

Current research has led to a significant improvement at the system level of thermoelectric generators (TEG) for automotive applications. The previously low power density could be increased considerably up to 267 W/kg and 478 W/dm3. In addition, the cost–benefit ratio of the technology in the overall system of the vehicle was improved through inten...

Heavy-duty vehicles are responsible for a large proportion of road traffic emissions in the European Union due to their high annual mileage and increasing freight traffic. For this reason, carbon dioxide limits will be introduced in this vehicle segment for the first time. Technological innovations are essential to meet these emission limits. Incre...

Despite technological progress such as advances of the internal combustion engine, heavy-duty vehicles are responsible for a large share of emissions from road transport in the European Union due to the high annual mileage and the increase in freight transport. For this reason, carbon dioxide limit values will be introduced for the first time in th...

Around 98% of heavy-duty vehicles still use internal combustion engines to cover long-haul freight traffic in the future. The engines convert around one third of the fuel’s energy into power while two thirds are lost through heat. Thermoelectric Generators offer an interesting opportunity to convert a part of this heat into electricity. This reliev...

The European Commission proposes to reduce CO2-emissions from heavy-duty vehicles by 35% by 2030 compared to 2019. Several technological approaches are required to achieve this ambitious goal. While electrification of short-distance distribution transport seems possible during this period, internal combustion engines continue to dominate long-dista...

Fuel consumption and the CO2 emissions of heavy-duty vehicles are responsible for a great share of the road transport sector and substantial improvements are unlikely without further innovations. One part of this problem is that approximately Open image in new window of the fuel’s chemical energy is lost in waste heat through the engine’s coolant a...

Fuel consumption and the CO2 emissions of heavy-duty vehicles are responsible for a great share of the road transport sector and substantial improvements are unlikely without further innovations. One part of this problem is that approximately 2=3 of the fuel’s chemical energy is lost in waste heat through the engine’s coolant and exhaust system. He...

At the automotive development the major challenges are the achievement of the required reduction of CO2 emissions and the reduction of the fuel consumption for internal combustion engines (ICE). Therefore, it is necessary to investigate all potential technologies to improve efficiency. Regardless of whether a passenger car or a heavy-duty truck con...

Despite the ongoing electrification of vehicle propulsion systems, combustion engine vehicles will continue to bear the brunt of passenger and goods transport world-wide for the next several years. A major challenge of the automotive industry is the achievement of the required reduction of CO2 emissions for internal combustion engines. Therefore, i...

At the automotive development a major challenge is the achievement of the required reduction of CO2 emissions and the reduction of the fuel consumption for internal combustion engines (ICE). Therefore it is necessary to investigate all potential technologies to improve efficiency. Regardless of whether a passenger car or heavy duty truck concept wi...

At the automotive development a major challenge is the achievement of the required reduction of CO2 emissions for ICEs. Therefore it is necessary to investigate all potential technologies to improve efficiency. Regardless of whether a conventional or hybrid vehicle concept is used, approximately 2/3 of the fuels chemical energy is lost as waste hea...

This paper presents a numerical model for a thermoelectric generator (TEG) on the tailpipe of commercial (3.5-ton) and heavy duty (40-ton) vehicles. The widths and lengths of the TEG for the two vehicles are 0.10 m × 0.15 m and 0.2 m × 0.15 m respectively. Exhaust gas is used as the heat source and cooling water is the heat sink. Both fluids flow i...

This paper presents a thermoelectric generator (TEG) as a waste heat recovery system (WHRS) for commercial vehicles (CVs), for light, medium and heavy duty. An analysis of the potential and a close investigation of the limitations are given . The use of this system in future in combination with diesel, dual fuel, or gas combustion engines and in hy...

This paper presents a numerical model for a thermoelectric generator (TEG) on the tailpipe of commercial (3.5-ton) and heavy duty (40-ton) vehicles. The widths and lengths of the TEG for the two vehicles are 0.10 m × 0.15 m and 0.2 m × 0.15 m respectively. Exhaust gas is used as the heat source and cooling water is the heat sink. Both fluids flow i...

A parametric study and optimization approaches of a thermoelectric generator (TEG) for the recovery of energy from the exhaust gas in Diesel vehicles used in freight transport is reported. The TEG is installed in the tailpipe of a commercial vehicle (3.5 tonnes) and a heavy-duty vehicle (40 tonnes). The exhaust gas is used as the heat source and th...

A parametric study and optimization approaches of a thermoelectric generator (TEG) for the recovery of energy from the exhaust gas in Diesel vehicles used in freight transport is reported. The TEG is installed in the tailpipe of a commercial vehicle (3.5 tonnes) and a heavy-duty vehicle (40 tonnes). The exhaust gas is used as the heat source and th...