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'''Solenoid''' for * BoostControl * InTake/VariableIntake '''[http://shop.vems.hu/catalog/high-capacity-pneumatic-valve-3way-p-171.html High flow-capacity boostcontrol valve]''': http://shop.vems.hu/catalog/images/HighCapacity_boostcontrol_valve_8370_l.jpg Advantages: * High flowrate * rated from VAC to 120 psi (8.2 bar !) Disadvantage: slightly higher cost '''Fitting information''' Below the correct ways are shown from the MAC Valve catalog Scenarios External wastegate controlling top and bottom : Divertor 1 : Top 2 : Source 3 : Bottom http://www.vems.hu/files/BoostControl/boostsolenoidconnecting.jpg ---- '''Traditional''' (lower cost) '''pneumatic valve'''. Used in Audi-s, BMW ad VWs for similar purpose. Should NOT be used beyond 3 bar boost (400 kPa absolute). Actually, above 2 bar boost (300 kPa absolute), or for large wastegate actuators, the above [http://shop.vems.hu/catalog/high-capacity-pneumatic-valve-3way-p-171.html High flow-capacity boostcontrol valve] is recommended. http://www.vems.hu/files/boostcontrol/Solenoid/Solenoid1_m.jpg * Resistance: R=appr. 30 Ohm ( 14.7V / R < 500 mA max). '''electronic driving:''' * using a free injector channel recommended: Flyback is needed. * power-IGBT ignition output is an option * alternatively stepper output can be used * not recommended: if there is no free injector, ignition and stepper output channel in your app, the TPIC6A259 (nickname: p259) chip can theoretically drive it (TPIC6A259 is rated to 350mA if all channels are loaded continuously: otherwise it can bear max 1A on one channel). In practice, it's a bad idea. ** Using a flyback diode is required when driving inductive load (eg. BoostControl solenoid). ** again, p259 output is not recommended for any boostcontrol solenoid or any inductive load ! (p259 outputs only recommended for LEDs, small lights, or signalling tach-output or logic-level signal to some other controller or driving high-side P-FET drivers, as in the double-vanos camshaft-control application). ---- A similar solenoid with a '''different connector''': http://www.vems.hu/files/boostcontrol/Solenoid/solenoid2_3_m.jpg R=25.1 Ohm * [http://www.vems.hu/files/boostcontrol/Solenoid/solenoid2_1_m.jpg pic1] * [http://www.vems.hu/files/boostcontrol/Solenoid/solenoid2_2_m.jpg pic2] I like this solenoid a lot, but where can we get connectors ? * 2x 4mm dia male 7mm between centers * center aligning pin is also 4 mm dia, but 6 mm (between centers) from both conducting pins Used in all Mercedes families (including E and S classes) and some Daewoo. ---- '''See also:''' * WebShop
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