Chip-tuning. Tuning the engine control unit (ECU)

Tuning can be different. Basically, this term motorists understand the external improvements car, installing skirts, spoilers, improved aerodynamics, improved performance suspension, brakes, both through the installation of new equipment and refinement of the old, better engine performance. One of the options for refinement characteristics motor or gearbox, and is chip-tuning - special reprogramming the electronic control unit (ECU - Engine Control Unit). Its name this kind of tuning was for the reason that in each control unit is a memory chip - a chip that generates control signals for the fuel system, ignition and turbo on a specific algorithm. The algorithm takes into account the signals received from multiple sensors, determines the optimum values ??obtained for the parameters of work and controls the controlled devices in accordance with the program. At its core, chip tuning - it is just replacing the numerical characteristics of such a program installed on the vehicle at the factory to a modified. The new program, depending on its configuration allows you to increase engine power by 5-10% (for air force units - up to 20%), making it more economical, and improve engine starting in cold weather and frost, add sports dynamics in motion, increase torque time at small and medium revs, and thus improve the "acceleration" at speeds from 2000 to 3000. Basically, all versions of firmware ECU tuning mode changes of cold start, modernized treatment progress, make changes in the speed characteristics of the car and change the maximum allowable engine speed. Tuners also modifies the ignition timing to optimize the motor, adjust the injection time and regulate the operation of the systems of exhaust gases. Chip-tuning begins with a primary diagnosis of all engine systems are available to malfunction did not spoil the end result, as well as experts determine whether it is possible to change your car settings ECU. If no complaints, the control unit is removed from the car and it reads the software (the software). Typically, the program management of modern car has more than 100 different calibrations (one-, two-and three-dimensional table with the values ??of the parameters necessary to calculate the optimal characteristics of the powertrain), and only a small fraction (10-20) of them can be changed to improve the performance of traction and power. For various modes of engine operation in the relevant cells in the tables set the new values ??are greater than in the original program. Note that these tables are very individual and transfer values ??on the other engine control unit is likely to simply not start. Thanks to competently carried out chip-tuning the driver becomes much easier to make the acceleration when overtaking on the track, improving the speed and thrust performance cars, the intensity of dispersal (pickup engine is at lower than usual speeds) and generally the machine becomes more obedient. Another advantage of chip-tuning - its availability, low cost and a much shorter time compared with that of the classical force the engine. Typically, the cost of chip-tuning the engine is in the range from 300 to 600 dollars. In this type of tuning, in contrast to the "iron" for forcing the engine to increase capacity without increasing wear on engine parts - because the engine is in this version is not changed, but only optimizes the load on the engine in various modes and improves the efficiency of the ignition and fuel injection. Chip tuning allows, if necessary, safely back to factory settings, which is very problematic in complex forcing. It is worth noting that when using chip-tuning, even if used special licensing programs, cease to apply manufacturer's warranty on the engine. Subjected to reflash ECU can not all engines, in particular, are not suitable for this kind of work monoinzhektory and some engines with fuel injection system KE-Jetronic.