Precisely Metering Inlet and Outlet Pressure

This proportional pneumatic control valve provided precise turbocharger wastegate control with reduced hysteresis and turbo lag.

客户问题

An automotive system manufacturer was trying to resolve an issue they were having with achieving more precise control over the position of a turbocharger wastegate. Their current solution was a single valve to control both inlet and outlet pressure, which did not offer enough precision and produced too much hysteresis and turbo lag. The new solution needed to be airtight and small enough to fit in a confined space.

TLX 解决方案

TLX worked with the customer to develop a two-valve solution using pneumatic valves with proportional control. One valve proportionally metered the inlet pressure, and one valve metered the outlet pressure. Two valves were chosen because a single multiport valve that provided both inlet and outlet pressure would result in some leakage and less precise control. The valve was small and airtight, provided precise proportional control over the wastegate position, and reduced hysteresis and turbo lag.

查看设计方案

Proportional Pneumatic Control Valve

Supply voltage: 24 Vdc nominal

Coil resistance at 20°C: 131 Ω

Operating temperate range: -40°C to 65°C (-40°F to 150°F)

Operating pressure range: -3 to 124 kPa

Flow rate: 24 l/min @ 80 kPa

Leak rate: < 1 cc/min

Response time: < 3 ms

PWM pressure control: 10-90% duty cycle

PWM vacuum control: 10-90% duty cycle

TLX提供的任何组件，均可根据客户的不同系统、技术参数等要求进行设计和定制。本网站上的示例仅供说明目的。

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Step 1 / Initial Review

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Step 2 / Quote

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Step 3 / Design Review & Prototypes

Our engineering team reviews the design with you and makes any adjustments needed. Prototypes are built according to design specifications for testing.

Step 4 / Testing

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Step 5 / APQP

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Step 6 / Pre-Production

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Step 7 / PPAP/Production

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Step 8 / Ongoing Improvements

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