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A pressure sensor is used to monitor the pressure inside the chambers and inform the driver or engine management system if the pressure is too high to be effective.
Pressure sensors are used in a variety of applications, including detecting early faults in hydraulic brakes, optimising the fuel mix to match the air pressure, automatically cleaning exhaust filters, checking the pressure of critical fluids, preventing doors from catching fingers, triggering airbags faster, launching pedestrian airbags, and more.
The demand for pressure sensors in the automotive industry is primarily driven by consumer desire for smart technologies and safer vehicles. On a global scale, as the world’s population grows, so will the need for automobiles and the pressure sensing technology that powers them.
The Global Automotive Pressure Sensors Market accounted for $XX Billion in 2023 and is anticipated to reach $XX Billion by 2026, registering a CAGR of XX% from 2024 to 2030.
lmos Semiconductor AG has agreed to sell Silicon Microstructures Inc. (SMI) to Measurement Specialties Inc., a subsidiary of TE Connectivity. Silicon Microstructures offers digital and analogue versions of low and medium MEMS-based pressure sensors.
TE will be able to increase its global footprint in pressure sensors, particularly in medical, transportation, and industrial applications, as a result of this acquisition. SMI’s experience in microelectromechanical systems (MEMS) sensor technology design and production skills are planned to be combined with TE’s operational size, client base, and current sensor technologies to provide a more comprehensive worldwide sensing solutions offering.
Silicon Microstructures’ MEMS pressure sensing design and production capabilities are used in a variety of applications that require small, high-performance packages. The MEMS low-pressure sensing capability adds to TE’s pressure portfolio while also fitting with its market and application focus.
Elmos Semiconductor, which formerly owned SMI, may now focus on growing its semiconductor core business, which includes sensor ICs, motor control ICs, interface ICs, and power management ICs. The emphasis will be on increasing market share through new, distinctive solutions, particularly in the automobile industry.
This is TE Connectivity’s second sensor-related acquisition this year. In June, TE Connectivity completed a stock transaction to purchase First Sensor AG.
Continental has extended the updated licence for its tyre pressure monitoring systems (TPMS) servicing devices from one to three years.
Continental will conduct TPMS Update Plus workshops from the technology business and deliver monthly database updates for TPMS Pro and TPMS Go service devices, guaranteeing that TPMS sensor testing and programming devices are always up to date.
Honeywell has unveiled the next iteration of its Cabin Pressure Control and Monitoring System (CPCMS), which has commercial and military uses. This all-electric, lighter-weight version of the system is now available for business and regional aviation, as well as tactical and military trainer-sized aircraft.
The most accurate pressure sensor for automobiles ever produced by Melexis is introduced. While the sibling product MLX90822 produces an analogue output voltage, the MLX90824 first detects the absolute pressure before delivering a digital output signal through the SENT protocol. Pressure ranges of 1 to 4 bar are measured by these factory calibrated instruments.
The best engine management is made possible by extremely precise and reliable pressure monitoring, which ensures fuel savings and pollution reductions. The MLX90824 and MLX90822 are made up of a sensor readout circuit, digital hardware, voltage regulators, SENT or analogue output drivers, as well as all the necessary passive components.
The MLX90824 (SENT output) is equipped with an input for a pre-calibrated NTC thermistor (negative temperature coefficient). Customers can interface their NTC without doing end calibration through the pressure sensor.
Reverse voltage (-40 V) and overvoltage (+40 V) protection systems of the highest calibre are included. Trucks use this technology to become more environmentally friendly due to this protection range.
These pressure sensors can operate in temperatures between -40°C and 160°C. They can even withstand temperatures of 170 °C for a brief period of time, permitting smaller engine layouts.
A micro-machined diaphragm makes up the MEMS, which is the sensing component of the MLX90824 and MLX90822. It is adhered all the way around an etched-in silicon substrate cavity. A reference vacuum is present in this cavity. Any change in the ambient absolute pressure triggers a response from the diaphragm.
A Wheatstone bridge formed by piezo-resistive devices inserted into the diaphragm is set up to provide a signal. Following that, the signal is amplified and converted to a digital representation by the accompanying front-end electronics.
Temperature adjustment is done by the 16-bit Digital Signal Processing (DSP). A SENT or analogue output is then used to provide the outcome. As a Safety Element out of Context (SEooC) in line with ISO 26262, the MLX90824 and MLX90822 have been designed.
For the MLX90824 and MLX90822, it supports ASIL B and ASIL A system integration, respectively. “Long-term engine management over the complete lifetime of a vehicle is enabled by access to reliable and precise data on temperature and pressure.
This has a favourable impact on fuel economy and emissions control.The MLX90824 and MLX90822 have been enhanced for the newest engine models and their altered operating environments.
Last but not least, a sensor with a very quick update rate and step reaction is crucial for bikes as well as any other machinery powered by small engines, such as chainsaws and lawn mowers, among others.
This demand is met by the MLX90822, which has an output step response that is three times faster than any other pressure sensor Melexis has ever produced. In addition to assisting OEMs in their ongoing fight to lower pollutants, the MLX90824 and MLX90822 also help to offset rising gasoline prices by reducing fuel use. They ensure that bikes, vehicles, and trucks all adhere to the most recent emission standard.