Google has accused rival Uber of a "cover up scheme" to steal its self-driving car technology, acquiring a self driving truck startup as "part of a ruse concocted by Uber and a former Google engineer".Economictimes.Indiatimes.com reports claims by Google's self driving subsidiary Waymo that Antghony Levandowski and Uber had already pre-negotiated the terms for Uber to acquire the startup."Through discovery we've learned that Uber and Levandowski created a cover up scheme for what they were doing. They concocted a story for public consumption," it quotes Waymo's lawyer Charles Verhoeven, and that Uber's alleged conspiracy to build a company before later acquiring it is a large part of Waymo's bid to stop Uber's research from self-driving cars.It adds that, while Waymo has argued that Levandowski and Uber were "clearly in cahoots", it hasn't presented evidence yet that Uber knew that Levandowski had downloaded the files or instructed him to do so.