Tomorrow's Technician

FEBRUARY 21, 2024

Shifting is controlled by the DCT electronics/hydraulic module on the side of the transmission. The computer is trying to strike a balance between smooth shifts and clutch longevity. The transmission module works with the engine control module to manage torque coming from the engine during launches and shifts.

Engineering 130

Engineering Hydraulics Electronics Mechanic 130

The NAPA Network

MARCH 6, 2024

Low Transmission Fluid Your automatic transmission relies on hydraulic fluid pressure to operate. In a modern, electronically controlled automatic transmission, shift solenoids control the flow of transmission fluid. In older non-electronically controlled transmissions, shifting was controlled by shift valves, but the idea is the same.

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Car Electronics Hydraulics Check Engine Light 95

Tomorrow's Technician

NOVEMBER 9, 2023

This is especially true on vehicles with ABS and electronic stability control, because if you don’t get it right, well, actual cavitation will occur inside the hydraulic control unit for the ABS. So make sure you’re checking that service information to what kind of fluid it requires. And when this happens, you get tiny little bubbles.

Hydraulics 130

Hydraulics Electronics Vehicle IT 130

Tomorrow's Technician

OCTOBER 2, 2023

If the voltage does not drop or the circuit has a short or open, the module will deactivate the circuit to preserve the electronic components inside the module or sensor. For most wheel speed sensor circuits, when the ABS hydraulic control unit (HCU) wakes, it sends out a bias voltage signal to test the wheel speed sensor circuits.

Electricity 246

Electricity Engineering Hydraulics Electronics 246

Tomorrow's Technician

DECEMBER 13, 2023

Whenever any conditions change within the hydraulic circuit, such as the valve body or solenoids, adjustments to the system may be necessary. Figure 2 Electronic control over the entire pressure range of the transmission means that the TCM can ramp the rise and drop of pressure to specific clutches and brakes to achieve a smooth shift.

Hydraulics 130

Hydraulics Transmission Repair Electronics Vehicle 130

TransTec

JANUARY 1, 2020

As electronic power steering (EPS) continues to grow as a segment of the power steering industry, drivers will inevitably need to bring their vehicles in for service from time to time.

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Hydraulics Electronics Vehicle 52

Tire Review Magazine

MARCH 7, 2024

During normal braking, the pressure from the master cylinder passes through the Hydraulic Control Unit (HCU) unaltered. The wheel may start to turn as a result, but if the wheel doesn’t begin rotating, the outlet or dump valve opens to release the hydraulic pressure holding the wheel.

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Hydraulics Preventative Maintenance Electronics Vehicle 52

Tomorrow's Technician

JANUARY 15, 2024

The parking brake and hydraulics are where you’ll find any service issues. ABS Assist The Ridgeline has electronic brake distribution and brake assist. Aside from the general proportions, the Ridgeline is a different vehicle made in a different plant. Parking Brakes The parking brake on the Ridgeline is actuated using a pedal.

Engineering 130

Engineering Hydraulics Electronics Vehicle 130

Tomorrow's Technician

DECEMBER 14, 2023

The exception to this rule is vehicles with electronic brake distribution. This will release or bleed off the hydraulic pressure that is holding the wheel. Inside are the valves and solenoids that control the pressures to the wheel. During normal operation, the pressure from the master cylinder goes through the HCU unaltered.

Hydraulics 130

Hydraulics Mechanic Vehicle Electronics 130

Brake & Front End

FEBRUARY 12, 2024

Figure 4 ESP and ETS All 4MATIC systems use an Electronic Traction System (ETS) and an Electronic Stability Program (ESP). The hydraulic control module on a 4MATIC has at least 12 valves. This is thanks in part to the removal of the gear stage for the transfer case’s power take-off (PTO), as well as an optimized oiling system.

Electronics 130

Electronics Vehicle Hydraulics Mechanic 130

CATI

OCTOBER 12, 2023

As a diesel mechanic apprentice, gaining a deeper understanding of diesel engine components, electronic systems, and hydraulics is paramount. Mastering Technical Proficiency and Adapting to Industry Advancements After Diesel Mechanic Training Central to a successful apprenticeship is the relentless pursuit of technical excellence.

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Diesel Mechanics Apprenticeship Mechanic Technical 96

Hollenshades Auto Service

MARCH 1, 2024

Electronic Control Unit (ECU) The wheel speed sensor data is sent to the ECU, which is the brain of the ABS system. Hydraulic Control Unit (HCU) The HCU is responsible for modulating brake pressure. These sensors detect the rotational speed of each wheel.

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Brake Repair Auto Repair Services Hydraulics Auto Repair 52

Louisville Automotive Shop

JUNE 15, 2023

Essentially, it’s comprised of gears, shafts, hydraulic systems, and electronic components. How Transmissions Work A transmission is a complex system that transfers power from the engine to the wheels. There are usually two main transmission types- manual and automatic transmissions.

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Hydraulics Electronics Engineering Vehicle 52

Tomorrow's Technician

FEBRUARY 5, 2024

The days are gone when transmissions were purely mechanical and hydraulic and all you really needed was a set of high-pressure gauges to check line pressure and a vacuum gauge to check the engine’s intake vacuum and the integrity of the vacuum modulator.

Technical 130

Technical Engineering Troubleshooting Vehicle 130

Advanced Technology Institute

SEPTEMBER 2, 2021

LUS is also sponsoring ATI’s hydraulics program, which includes lending the campus use of a brand new L526 Wheel Loader to be used in school’s Heavy Vehicle Technology program. It’s a very sophisticated machine that has extensive electronic and computer guided control systems.

Hydraulics 52

Hydraulics Preventative Maintenance Manufacturing Electronics 52

Brake & Front End

NOVEMBER 21, 2023

The brake hydraulic control module on these vehicles has at least 12 valves. These differentials can act like a locking limited-slip or open differential with only a change of the electronically controlled clutches. These changes helped reduce cost while making the system more reliable.

Hydraulics 130

Hydraulics Vehicle Manufacturing Trucking 130

Tomorrow's Technician

NOVEMBER 21, 2023

The brake hydraulic control module on these vehicles has at least 12 valves. These differentials can act like a locking limited-slip or open differential with only a change of the electronically controlled clutches. These changes helped reduce cost while making the system more reliable.

Hydraulics 130

Hydraulics Vehicle Manufacturing Trucking 130

Tomorrow's Technician

JANUARY 9, 2024

The level system control module mounted in the trunk connects to the Sensor Electronic Control Module using a FlexRay data bus. It measures acceleration and movement of the car along the x, y and z axis, other information from the ABS hydraulic control unit and the ride height sensors at all four wheels.

Electricity 130

Electricity Vehicle Hydraulics Electronics 130

Tomorrow's Technician

DECEMBER 19, 2023

The level system control module mounted in the trunk connects to the Sensor Electronic Control Module using a FlexRay data bus. It measures acceleration and movement of the car along the X, Y and Z axis, other information from the ABS hydraulic control unit and the ride height sensors at all four wheels.

Electricity 130

Electricity Vehicle Hydraulics Electronics 130

Brake & Front End

DECEMBER 19, 2023

The level system control module mounted in the trunk connects to the Sensor Electronic Control Module using a FlexRay data bus. It measures acceleration and movement of the car along the X, Y and Z axis, other information from the ABS hydraulic control unit and the ride height sensors at all four wheels.

Electricity 130

Electricity Vehicle Hydraulics Electronics 130

Hollenshades Auto Service

NOVEMBER 13, 2022

Bushings Hydraulic bushings have chambers and valves to help absorb vibration and change the angles under certain conditions. Electronic Parking Brake Electric parking brake designs are such that they can free up interior space by turning a lever or pedal into a button. The bolts on some applications can be of a torque-to-yield design.

Vehicle 40

Vehicle Auto Repair Electronics Mechanic 40

Master Mechanics

MAY 9, 2023

Faulty Transmission Solenoid The transmission solenoid is an electro-hydraulic valve that controls the flow of transmission fluid and regulates gear shifting. Transmission Control Module (TCM) Problems The TCM is the electronic control unit that manages the operation of the transmission.

Master Mechanic 40

Master Mechanic Transmission Repair Auto Repair Mechanic 40

Tomorrow's Technician

DECEMBER 1, 2023

The torque sensor performs the same function as the torsion bar and spool valve in a hydraulic system. The electronic sensor uses a torsion sensor in the same manner as in the spool valve in a hydraulic power steering system. But, it can also detect a steering pull.

Hydraulics 130

Hydraulics Electronics Vehicle IT 130

Brake & Front End

NOVEMBER 30, 2023

The torque sensor performs the same function as the torsion bar and spool valve in a hydraulic system. The electronic sensor uses a torsion sensor in the same manner as in the spool valve in a hydraulic power steering system. But, it can also detect a steering pull.

Hydraulics 130

Hydraulics Electronics Vehicle IT 130

Advanced Technology Institute

OCTOBER 14, 2019

The trailer may be stable or connected to hydraulic lifts that allow the contents to be easily dumped out. Even with previous experience in mechanics and electronics, these massive machines still require a large amount of training if they are to be used safely.

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Vehicle Education Hydraulics Mechanic 52

RepairSmith

APRIL 26, 2024

This engages the torque converter, which uses this hydraulic pressure to shift to the correct gear. Transmission control solenoid: Regulates the pressurized hydraulic fluid (line pressure). Vehicle Sluggishness If a transmission solenoid breaks, the electronic control unit (ECU) on some vehicles may activate the “limp mode.”

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Hydraulics Check Engine Light Mechanic Vehicle 52

Brake & Front End

OCTOBER 12, 2023

At the master cylinder on some vehicles, there might be a quick-take-up valve in the replenish port to hydraulically pull the caliper piston back from the rotor. Some vehicles are even using the valves in the ABS module to electronically retract the pistons.

Hydraulics 130

Hydraulics Electronics Vehicle Engineering 130

Tomorrow's Technician

OCTOBER 10, 2023

At the master cylinder on some vehicles, there might be a quick-take-up valve in the replenish port to hydraulically pull the caliper piston back from the rotor. Some vehicles are even using the valves in the ABS module to electronically retract the pistons.

Hydraulics 130

Hydraulics Electronics Vehicle Engineering 130