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Matrix Pattern 1

5 months ago

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Fuel-Air Equivalence Ratio (Lambda)
Lambda (λ) is the ratio of actual air-fuel ratio to the stoichiometric air-fuel ratio. λ = 1 is perfect stoichiometry, λ < 1 is ...

5 months ago

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Volumetric efficiency
Volumetric efficiency measures how well an engine breathes. The ratio of the actual air mass drawn in per cycle to the theoreti...

5 months ago

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Brake Mean Effective Pressure (BMEP)
BMEP is a normalised measure of engine work output per cycle per unit displacement. It lets you compare engines of different siz...

5 months ago

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Engine torque and RPM
Torque and power are related through rotational speed. Knowing brake power and engine RPM, you can back-calculate the torque del...

5 months ago

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Find the Pattern 7

5 months ago

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Engine Thermal Efficiency
The thermal efficiency of an ideal Otto cycle engine depends only on the compression ratio. A higher compression ratio yields gr...

5 months ago

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Simulate full-stop emergency braking scenario.
Emergency braking events demand rapid deceleration to bring the vehicle safely to rest. Given initial vehicle speed and constant...

5 months ago

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Compute optimal regenerative and friction brake torque blending.
Electric and hybrid vehicles combine regenerative braking with traditional friction braking to maximize energy recovery while en...

5 months ago

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Estimate brake disc temperature rise during braking.
During braking, kinetic energy is converted into thermal energy, causing brake discs to heat up. Excessive temperature rise can ...

5 months ago

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Find the Pattern 10

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Find the Pattern 9

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Compute wheel slip ratio during braking.
During braking, a difference develops between the vehicle’s forward speed and the rotational speed of its wheels. This differenc...

5 months ago

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Find the Pattern 8

5 months ago

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Estimate dynamic load transfer to front axle during braking.
During braking, load shifts from the rear axle to the front axle. Given mass, deceleration, center of gravity height, and wheelb...

5 months ago

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Estimate brake line pressure required for a given force.
Hydraulic braking systems amplify pedal input to generate braking force. Given braking force and piston area, compute the hydrau...

5 months ago

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Find the Pattern 6

5 months ago

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Compute the required brake torque at wheel to stop the car
Brake torque defines how effectively braking force translates into wheel deceleration. Given braking force and wheel radius, det...

5 months ago

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Find the Pattern 5

5 months ago

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Compute braking force using vehicle mass and acceleration.
Compute braking force required to stop a vehicle of mass 'm' and with acceleration 'a' Remember: F = m × a.

5 months ago

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Find the Pattern 4

5 months ago

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Compute vehicle stopping distance using initial speed and constant deceleration.
Given vehicle speed v (m/s) and constant deceleration a (m/s²), compute stopping distance Remember: d = v² / (2a)

5 months ago

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Find the Pattern 3

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Find the Pattern 2

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Find the Pattern 1

5 months ago

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[Master Regular Expression] Largest Substring Between Two Equal Character
Given a string s, return the length of the longest substring between two equal characters, excluding the two characters. If ther...

5 months ago

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[Master Regular Expression] Validate IP Address
Given a string queryIP, return "IPv4" if IP is a valid IPv4 address, "IPv6" if IP is a valid IPv6 address or "Neither" if IP is ...

5 months ago

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[Master Regular Expression] Strong Password Checker II
A password is said to be strong if it satisfies all the following criteria: It has at least 8 characters. It contains at l...

5 months ago

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[Master Regular Expression] Vowel-Consonant Score
You are given a string s consisting of lowercase English letters, spaces, and digits. Let v be the number of vowels in s and c ...

5 months ago

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[Master Regular Expression] String Matching in an Array
Given an array of string words, return all strings in words that are a substring of another word. You can return the answer in a...

5 months ago