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Connected Electric Vehicle Optimized for Life, Value, Efficiency and Range

Periodic Reporting for period 2 - CEVOLVER (Connected Electric Vehicle Optimized for Life, Value, Efficiency and Range)

Reporting period: 2020-05-01 to 2021-04-30

The current generation of electric vehicles have made significant progress during the recent years, however they have still not achieved the user acceptance needed to support broader main-stream market uptake. These vehicles are generally still too expensive and limited in range to be used as the first car for a typical family. Long charging times and uncertainties in range prediction are common as further barriers to broader market success. For this reason, the CEVOLVER project takes a user-centric approach to create battery-electric vehicles that are usable for comfortable long day trips whilst the installed battery is dimensioned for affordability. Furthermore, the vehicles will be designed to take advantage of future improvements in the fast-charging infrastructure that many countries are now planning. CEVOLVER tackles the challenge by making improvements in the vehicle itself to reduce energy consumption as well as maximizing the usage of connectivity for further optimization of both component and system design, as well as control and operating strategies. This will encompass measures that range from the on-board thermal management and vehicle energy management systems, to connectivity that supports range-prediction as a key element for eco- driving and eco-routing driver assistance. Within the project it will be demonstrated that long-trip are achievable even without further increases in battery size that would lead to higher cost. The driver is guided to fast-charging infrastructure along the route that ensures sufficient charging power is available along the route in order to complete the trip with only minimal additional time needed for the overall trip. The efficient transferability of the results to further vehicles is ensured by adopting a methodology that proves the benefit with an early assessment approach before implementation in OEM demonstrator vehicles.
In the first 30 months of the CEVOLVER project the main objectives are achieved. Minor delay of deliverables in work package 1 (WP1) have been compensated, but the circumstances of CoVid-19 have impacted the schedule. In order to compensate the impact of this delay the consortium considers applying for a cost neutral project prolongation.
For WP1 all tasks have been finalised and all targets have been achieved. The specifications of brand independent or common/electric/electronic interfaces are defined, standards for communications with the cloud and the data have been selected and the use cases have been defined including the requirement for the controls of the BEV system. For WP2 the progress is nearly complete and according to the objectives. Main results are the definition of the virtual simulation framework to be used in CEVOLVER and generic base vehicle model that demonstrates the correct system and component behaviour. The base vehicle model platform is exchanged with all CEVOLVER partners accompanied by a user manual. The features eco-routing, range estimation and eco-driving have been developed and a basic version has been distributed to the OEMs to start the implementation process. The simulation environment has been used to produce first results about thermal management feature. For WP3 two prototypes were developed and built. For the first prototype as being a flexible platform to enable a better accessibility, tests were completed and have been shared with the partners. For WP4 the definition of the technical specifications for demonstrator vehicle has been achieved. The instrumentation of the demonstrator is completed as well as the integration of the heated panels in the cabin. While a test plan is ready, the baseline testing is about to be finished right after period 2 is completed. The testing is delayed involving the CoVid-19 circumstances by about 6 months. However, there are already more than 25 on road tests drives and several roller dyno tests conducted. Last but not least a first software feature specification of the “fleet data based range predictor” has been completed. WP5 also achieved the first part of the work and the technical specification of the vehicle demonstrator are available incl. a strategy and architecture for connected demonstrator vehicle controls. The specifications of the software design are laid out. However, for the current work the impact of CoVid-19 is measurable. For WP6 concerning the validation and verification of the demonstrators and assessment of the energy and thermal management optimisation framework and methodology is proceeding, but progress is implicitly impacted by CoVid-19 due to the delay of the work packages of the demonstrator vehicles. First measurements
The CEVOLVER project has set the baseline to achieve the objectives in the first 30 months. A novel user centric development approach has been implemented to cover future needs and driver acceptance for battery electric vehicles. In a first step all novel CEVOLVER features were translated into a requirement specification. In a second step, based on the requirements, a full functional architecture (FA) has been developed. The FA, covering main CEVOLVER functionalities, is one of the most important project outcomes. A simulation environment and the control software for the demonstrator vehicles is built on the FA.
Special use cases for customer scenarios and project KPI’s have been developed to judge the overall CEVOLVER objectives. Simulation results and testing on demonstrator vehicles deliver and will deliver measurement data to evaluate against the targets defined. At that point, a statement about progress beyond state of the art and related wider societal implications can be done.