Mobile Equipment for Testing the Power Steering of Cars

The steering system is one of the components that ensure safe movement of vehicles; besides this, keeping it in optimum condition leads to a minimum fuel consumption but also the lack of pollution associated with the loss of hydraulic fluid. Power steering is one of the most requested options in a car of small and medium size, for the vehicles weighing over 1200 kg entirely common. In figure 1 is represented the percent’s according to the type of assistance steering boxes; from this graph, in conjunction with the average age of the fleet in Romania (13 years in the year 2017), it is deduced that most power-steering’s mounted on cars have hydraulic power steering or electro-hydraulic, so the need for a portable test equipment is needed to discover and resolve the problem regarding faults of the system without disassembling the vehicle. Advantage of the device lies in its capability to transmit data that is collected by flow and pressure transducers and sent to a mobile (smartphone or tablet) or fixed device (PC) using wireless technology. Also data can be transmitted to an operator who is specializes in repairing hydraulic steering boxes to confirm their state of function. This article presents the state of the art portable test equipment with data transmission for hydraulic power boxes and pumps from cars, this test device will have reduced dimensions and will be formed of a flow transducer and pressure transducer and a 2 way distributor with and a wireless module, all of which are connected to an electronic unit with an display located on the device panel. This data is then transmitted to a device that has software installed on it, capable of play back information that receives from the transducers.