Padmini Vna Mechatronics Pvt Ltd

Plot No 100-101 Sector 35, HSIIDC Udyog, Vihar Phase VII

India , Punjab, Gurgaon - 122001

About Us

Founded in 1992 in New Delhi, Padmini’s first products were automotive horns that were specifically designed for the demanding conditions of the Indian market. Heavy horn usage, dusty conditions, and horizontal monsoon rains caused horns designed for European and Japanese duty cycles to fail, and Padmini solved that problem by manufacturing its own horn design. By the late 1990’s, Padmini’s horns could be found in >80% of all new passenger cars sold in India. The horn division was later sold to Hella, and Padmini began investing in emissions controls.

Padmini is now one of the leaders in emissions controls systems in India and has diversified to a broad range of mechatronics actuators, serving Japanese, European, Indian and American automotive OEMs. The vision is to continue growing through heavy investment in in-house research, design, validation and production process refinement.

Success in the automotive business has also led to investments and product development support in two non-automotive cleantech ventures, in the areas of concentrated solar power and personal cooling.

DC Motor Driven Exhaust Gas Recirculation (EGR) Valves:

Our DC motor driven EGR valves offer fast response and precise control over the amount of recirculated exhaust gas for meeting ever more stringent emissions requirements.Key Features: Butterfly and poppet-type versions available. Self-cleaning feature (in butterfly type EGR) by moving beyond the zero point upon engine switch-off to brush away soot deposits. High pressure handling capability, up to 5 bar (absolute)
Liquid-cooled design offer high gas temperature handling capability, up to 600 deg C. Faster response than conventional pneumatic and solenoid based EGR valves. Less power consumption than solenoid based EGR valves.Less number of system components than pneumatically based EGR systems. Modular actuator construction offers design flexibility to meet a full range of customer requirements

 

EGR Module

Our EGR Module offers best efficiency in class to regulate exhaust gas recirculation at desired temperature. It integrates precisely controlled Poppet /Butterfly type DC Motorised EGR, Pneumatic bypass valve with highly compact & efficient cooler.Key Features:
 Multiple variant readily available which can cater vast range of Vehicle platforms. High pressure handling capability, up to 5 bar (absolute)
Effective Cooling channel design ensures high gas temperature handling capability, up to 650 deg C. Drop-in /Butterfly EGR construction offers design flexibility to meet a full range of customer requirements. Bypass flap Position feedback sensor is also available as integral part of EGR Module.Smart Electrically controlled bypass valve is optional.

 

Exhaust Throttle Valves

Our Exhaust Throttle Valves ensures dynamic control of exhaust flow in emission control system. These valves are used for DPF (Diesel Particulate Filter) regeneration and auxiliary braking.Key Features:Flexibility in Valve Design ensures multiple range of Vehicle platform.
Exhaust flap can function against backpressure of 5 bar (absolute). Exhaust Throttle Valve can function at Exhaust Gas Temperature, up to 700 deg C. Exhaust flap shaft decoupled design ensures smooth and enhanced life for Electric Actuator. Fail- safe function ensures flap position at default mode.

 

Vacuum Pumps

Our vacuum pumps are designed to run the power brake booster and other devices requiring vacuum, such as EGR valves and turbocharger wastegate actuators. A modular vacuum pump design covers displacements ranging from 140 to 230 cm3, with a wide variety of packaging options. Significant R&D efforts have been dedicated to reducing pump power consumption, making ours some of the most energy-efficient vacuum pumps in the industry.Available models based on oil feed channel-Through cam-shaft.Through cylinder head

 

Water Pumps

Our electric water pumps ensure sufficient engine cooling at low RPM and high-load operation. They reduce the need to oversize the main engine water pump, leading to fewer parasitic losses and improving fuel economy. Electric water pumps also aid in engine accessory cooling upon engine shut-off, reducing oil coking in turbocharger bearings and improving the service life of water-cooled exhaust components.Key Features:
BLDC based motor, with magnetic field pass-through sealing of the windings. No moving seals for enhanced reliability. Over-voltage and under-voltage protection.Thermal shutdown capability.Rotor blockage detection. Wide range of operating temperature: -40⁰C to +160⁰C.
Single-speed and variable speed designs (using PWM command). 12V and 24V variants. 15W outrunner and 30W inrunner motor design pumps are available

 

The Turbo Dual Purge Valve

The Turbo Dual Purge Valve is a progressive type ECU controlled solenoid Valve. It provides the linear control for flow of fuel Vapours (fumes) stored in the Carbon canister to the intake manifold. The Turbo Dual Purge Valve can be Operated in both Naturally Aspirated (Low Flow) Mode & High Flow Boost Mode. Naturally Aspirated Mode provides the high precision for Low flow mode and the High Flow Boost Mode gives the high flow capability.Key Features:  Specially Designed for Linear control over both Naturally Aspirated (Low Flow) & High Flow Boost Mode.
 Low Flow Mode Controlability : 0~20 Lpm (At -70Kpa). High Flow Mode Controlability:120~150Lpm (At -70Kpa). Driven by the ECU’s PWM signal. High Precision control for Naturally Aspirated Mode. Wide Range of Operating Tempreture: -40~+140°C

 

The Turbocharger eCBV

The Turbocharger eCBV is an electrically controlled component to operate in conjunction with the turbocharger to increase system transient response and durability while suppressing system noises. The eCBV shall be integrated into the turbocharger compressor housing.Key Features:
 Wide Range of operating temperature : -40°C to +180°C. Max medium temp during operation max short (10sec) : 240°C. Maximum operating pressure (delta) : 250kPa ± 10kPa. Vibration level : 20g (Random/Sinusoidal Vibration) & 40g (Mechanical Shock). Fast opening & closing response time : Opening response time 70ms & Closing response time 40ms.Types of sealing option : (1)Hard seal , (2) Soft seal.Ingress Protection (IP-code) : IP6K 9K according to ISO 20653. Durability Life Cycles : 4 million max.

 

Electronic Vacuum Regulating Valves

Designed for controlling waste-gate actuators for Diesel and Gasoline engines, these valves are used for progressive applications in vacuum-based pneumatic actuators.  These valves provide a controlled vacuum output, dependent on the equivalent voltage (%PWM) applied to them.Key Features: High tensile diaphragm designed to complete more than 6M cycles at 150⁰. International patents filed for the noise dampening module for a vacuum modulator in a motor vehicle, and the coil assembly for controlling circuit breakout in a vacuum modulator. Operating temperature range: -30⁰C to +140⁰C

 

Fuel Tank Isolation Valve –FTIV

Fuel Tank Isolation Valve maintains the fuel tank pressure in a protected pressure range in hybrid vehicles. Maintaining tank pressure within a protected pressure range.Electrical control of fuel vapours flow from tank to canister during Refueling.
Over-Pressure Relief (OPR). Over-Vacuum Relief (OVR).Key Features: Adjustable Over Pressure Relief (OPR)
Adjustable Over Vacuum Relief (OVR). Flow Limiter during refueling. Two end positions closed / open. Low Pressure drop at on condition.  Robust Sealing against Pressure(+280hPa) & Vacuum(-90 hPa). Wide Range of operating temperature : -40°C to +85°C.
Maximum operating pressure (delta) : 400 hPa.Response Time : < 100 ms

 

Electrically Actuated Diesel Throttles

Electrically Actuated Diesel Throttles also known as pre-throttles, throttle governors, and intake shutter valves, these valves are used to increase manifold vacuum in diesel engines.Applications: Increasing EGR gas flow-rate for emissions controls. Providing low minimum flow to aid NVH in smooth diesel engine shut-down. Diesel particulate filter regeneration.Key Features: Aluminum body to meet stringent vibration and temperature requirements. Composite valves available for cost competitiveness.DC motor and composite gear-train to meet high torque requirements.Corrosion resistant components for low pH application. Contactless position sensor for improved reliability. Weight: 370 grams. Throttle Diameter: 48mm ~55mm. Working Temperature: - 40°C ~ 140°C.Transition time: Fully closed to fully open in ≤120 m.Flow Characteristics (for 50MM). At full open: 338 kg/hr. min ( Δp @ 2kPa).At full closed: 3.7 Kg/hr. max ( Δp @ 80kPa)

 

U Type Actuator

U-Type ActuatorApplied in  Intake manifold tumble flap actuation. Actuation of low pressure EGR valves
Engine speed governors. Turbocharger wastegate actuation.Exhaust control valve actuation.Key Features:
Weight: 450 grams. Working torque: >0.50 Nm @ 120 degrees Celsius and 13.5 V electrical input. Stall torque: 1.5 Nm. Current consumption: 0.8 A RMS. Response time: <85 ms. Maximum permissible angular travel: 90 degrees. Fail-safe return spring function available

 

EGR ECU


EGRecuControl of solenoid, vacuum and DC motor based EGR valves based on throttle position and RPM (for non common-rail diesel engines). Driving either the EGR valve solenoid coil, DC motor or air-solenoid valve directly. Dust and water resistance rating up to IP67, with some models designed inside aluminum housings with extra-high vibration resistance that are mountable directly to the engine block.

 

Diesel Back-Up Power Generator with AMF

Genset ControllerFully-featured automatic mains fail controller for diesel backup generators. Turns on the genset and disconnects the mains power automatically in case of grid power failure. Engine overload and thermal protection, EGR control, multi-language display and GSM monitoring capabilities.

 

BLDC Water Pump Motor Controller

Single-phase brushless motor driver, fitted into the same housing as the water pump. Provides variable speed control of the motor, as well as all necessary over/under voltage protections.

 

Electric Water Pump 50W


Electric water pumps ensure sufficient engine cooling at low RPM and high-load operation. They reduce the need to oversize the main engine water pump, leading to fewer parasitic losses and improving fuel economy. Electric water pumps also aid in engine accessory cooling upon engine shut-off, reducing oil coking in turbocharger bearings and improving the service life of water-cooled exhaust components.

Grill Shutter Actuator

Automakers are placing tremendous emphasis on the most aerodynamic car body shape in order to reduce drag while driving. The goal is a compromise between the lowest possible drag and maximum cooling.Advantages: Smart Electronic. Light weight of 70 to 120 Gramm
Very compact dimensions.360° rotation possible. Peak torque : up to 1.2 Nm (optional 1.5Nm).Temperatures : - 40°C to +110°C (optional +140°C)

 

2-2 Water Solenoid Valve


Control and regulation of the coolant flow in the powertrain coolant circuits. Control and regulation of the coolant flow in the heating circuits of the passenger compartment. Charge air cooling in commercial vehicles. Cooling of Air Conditioning equipment. Also used for battery cooling and power electronics cooling.

 

Turbo Dual Purge Valve

 

  The Turbo Dual Purge Valve is a progressive type ECU controlled solenoid Valve. It provides the linear control for flow of fuel Vapours (fumes) stored in the Carbon canister to the intake manifold. The Turbo Dual Purge Valve can be Operated in both Naturally Aspirated (Low Flow) Mode & High Flow Boost Mode. Naturally Aspirated Mode provides the high precision for Low flow mode and the High Flow Boost Mode gives the high flow capability.

 

Anti Corking Valve

It is an On-OFF type, Normally Closed Valve with Integrated Position feedback sensing System.It provides the ventilation of additional pressure built at Canister Line to the Vapor dome in tank.It is controlled by the electrical signal from ECU & in turn it gives Position feedback to ECU respective to its plunger position.

 

Refueling Vent Valve

 It is an On-OFF type, Normally Open Valve with Integrated Position feedback sensing System.It is placed in the line between the Tank & Canister & vents the line during refueling.It is controlled by the electrical signal from ECU & in turn it gives Position feedback to ECU respective to its plunger position.